10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2018

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number: 001-36131

Endurance International Group Holdings, Inc.

(Exact Name of Registrant as Specified in Its Charter)

Delaware	46-3044956
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)

10 Corporate Drive, Suite 300 Burlington, Massachusetts	01803
(Address of Principal Executive Offices)	(Zip Code)

(781) 852-3200

(Registrant’s Telephone Number, Including Area Code)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ý    No  ¨

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ý    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	¨	Accelerated filer	ý
Non-accelerated filer	¨	Smaller reporting company	¨
		Emerging growth company	¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

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Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  ý

As of October 29, 2018, there were 143,855,398 shares of the issuer’s common stock, $0.0001 par value per share, outstanding.

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TABLE OF CONTENTS

	Page
PART I. FINANCIAL INFORMATION
Item 1. Financial Statements (unaudited)
Consolidated Balance Sheets as of December 31, 2017 and September 30, 2018	4
Consolidated Statements of Operations and Comprehensive Loss for the three and nine months ended September 30, 2017 and 2018	5
Consolidated Statements of Cash Flows for the nine months ended September 30, 2017 and 2018	6
Notes to Consolidated Financial Statements	7
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	53
Item 3. Quantitative and Qualitative Disclosures About Market Risk	82
Item 4. Controls and Procedures	83
PART II. OTHER INFORMATION
Item 1. Legal Proceedings	83
Item 1A. Risk Factors	84
Item 5. Other Information	105
Item 6. Exhibits	106
Signatures	108

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Endurance International Group Holdings, Inc.

Consolidated Balance Sheets

(in thousands, except share and per share amounts)

	December 31, 2017			September 30, 2018
Assets				(unaudited)
Current assets:
Cash and cash equivalents	$	66,493		$	89,674
Restricted cash	2,625			1,832
Accounts receivable	15,945			14,105
Prepaid domain name registry fees	53,805			57,114
Prepaid commissions	—			41,744
Prepaid expenses and other current assets	29,327			27,101
Total current assets	168,195			231,570
Property and equipment—net	95,452			79,315
Goodwill	1,850,582			1,849,264
Other intangible assets—net	455,440			377,670
Deferred financing costs—net	3,189			2,879
Investments	15,267			15,266
Prepaid domain name registry fees, net of current portion	10,806			11,337
Prepaid commissions, net of current portion	—			42,081
Other assets	2,155			9,021
Total assets	$	2,601,086		$	2,618,403
Liabilities and stockholders’ equity
Current liabilities:
Accounts payable	$	11,058		$	10,812
Accrued expenses	79,991			70,204
Accrued interest	24,457			15,109
Deferred revenue	361,940			380,564
Current portion of notes payable	33,945			31,606
Current portion of capital lease obligations	7,630			7,595
Deferred consideration—short term	4,365			2,386
Other current liabilities	4,031			3,753
Total current liabilities	527,417			522,029
Long-term deferred revenue	90,972			96,419
Notes payable—long term, net of original issue discounts of $25,811 and $22,445 and deferred financing costs of $37,736 and $33,515, respectively	1,858,300			1,792,436
Capital lease obligations—long term	7,719			2,067
Deferred tax liability	19,696			36,498
Deferred consideration—long term	3,551			1,342
Other liabilities	10,426			11,014
Total liabilities	2,518,081			2,461,805
Stockholders’ equity:
Preferred Stock—par value $0.0001; 5,000,000 shares authorized; no shares issued or outstanding	—			—
Common Stock—par value $0.0001; 500,000,000 shares authorized; 140,190,695 and 143,306,748 shares issued at December 31, 2017 and September 30, 2018, respectively; 140,190,695 and 143,306,411 outstanding at December 31, 2017 and September 30, 2018, respectively	14			14
Additional paid-in capital	931,033			953,971
Accumulated other comprehensive loss	(541		)	(1,034		)
Accumulated deficit	(847,501		)	(796,353		)
Total stockholders’ equity	83,005			156,598
Total liabilities and stockholders’ equity	$	2,601,086		$	2,618,403

See accompanying notes to consolidated financial statements.

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Endurance International Group Holdings, Inc.

Consolidated Statements of Operations and Comprehensive Loss

(unaudited)

(in thousands, except share and per share amounts)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2018			2017			2018
Revenue	$	295,222		$	283,770		$	882,617		$	862,896
Cost of revenue	158,865			128,945			454,197			393,597
Gross profit	136,357			154,825			428,420			469,299
Operating expense:
Sales and marketing	66,276			63,831			211,154			197,733
Engineering and development	19,882			22,683			60,393			64,559
General and administrative	51,269			25,693			130,929			95,212
Transaction expenses	—			—			773			—
Total operating expense	137,427			112,207			403,249			357,504
(Loss) income from operations	(1,070		)	42,618			25,171			111,795
Other income (expense):
Other income (expense), net	(600		)	—			(600		)	—
Interest income	203			289			506			720
Interest expense	(35,848		)	(37,527		)	(121,022		)	(111,923		)
Total other expense—net	(36,245		)	(37,238		)	(121,116		)	(111,203		)
(Loss) income before income taxes and equity earnings of unconsolidated entities	(37,315		)	5,380			(95,945		)	592
Income tax expense	2,982			11,715			11,384			8,826
Loss before equity earnings of unconsolidated entities	(40,297		)	(6,335		)	(107,329		)	(8,234		)
Equity (income) loss of unconsolidated entities, net of tax	(33		)	—			(72		)	2
Net loss	$	(40,264	)	$	(6,335	)	$	(107,257	)	$	(8,236	)
Net loss attributable to non-controlling interest	—			—			277			—
Excess accretion of non-controlling interest	—			—			7,247			—
Total net loss attributable to non-controlling interest	—			—			7,524
Net loss attributable to Endurance International Group Holdings, Inc.	$	(40,264	)	$	(6,335	)	$	(114,781	)	$	(8,236	)
Comprehensive income (loss):
Foreign currency translation adjustments	1,070			(644		)	2,984			(2,489		)
Unrealized gain (loss) on cash flow hedge, net of taxes of $48 and $256, and $(182) and $626 for the three and nine months ended September 30, 2017 and 2018, respectively	83			812			(309		)	1,996
Total comprehensive loss	$	(39,111	)	$	(6,167	)	$	(112,106	)	$	(8,729	)
Basic net loss per share attributable to Endurance International Group Holdings, Inc.	$	(0.29	)	$	(0.04	)	$	(0.84	)	$	(0.06	)
Diluted net loss per share attributable to Endurance International Group Holdings, Inc.	$	(0.29	)	$	(0.04	)	$	(0.84	)	$	(0.06	)
Weighted-average common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:
Basic	137,793,609			143,107,122			136,688,115			141,946,574
Diluted	137,793,609			143,107,122			136,688,115			141,946,574

See accompanying notes to consolidated financial statements.

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Endurance International Group Holdings, Inc.

Consolidated Statements of Cash Flows

(unaudited)

(in thousands)

	Nine Months Ended September 30,
	2017			2018
Cash flows from operating activities:
Net loss	$	(107,257	)	$	(8,236	)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation of property and equipment	40,733			36,753
Amortization of other intangible assets	104,554			77,890
Impairment of long lived assets	13,848			—
Impairment of investments	600			—
Amortization of deferred financing costs	5,403			4,708
Amortization of net present value of deferred consideration	504			311
Dividend from minority interest	100			—
Amortization of original issue discounts	2,791			3,209
Stock-based compensation	48,749			21,932
Deferred tax expense (benefit)	6,442			8,839
(Gain) loss on sale of assets	(317		)	191
(Gain) loss of unconsolidated entities	(72		)	2
Financing costs expensed	5,487			1,228
Loss on early extinguishment of debt	992			331
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(872		)	1,687
Prepaid expenses and other current assets	(510		)	(3,033		)
Accounts payable and accrued expenses	(7,309		)	(15,721		)
Deferred revenue	15,000			3,502
Net cash provided by operating activities	128,866			133,593
Cash flows from investing activities:
Purchases of property and equipment	(32,095		)	(22,343		)
Proceeds from sale of assets	292			6
Purchases of intangible assets	(1,966		)	—
Net cash used in investing activities	(33,769		)	(22,337		)
Cash flows from financing activities:
Proceeds from issuance of term loan and notes, net of original issue discounts	1,693,007			1,580,305
Repayments of term loans	(1,733,147		)	(1,656,094		)
Payment of financing costs	(6,304		)	(1,580		)
Payment of deferred consideration	(5,408		)	(4,500		)
Payment of redeemable non-controlling interest	(25,000		)	—
Principal payments on capital lease obligations	(5,679		)	(5,609		)
Proceeds from exercise of stock options	1,548			756
Net cash used in financing activities	(80,983		)	(86,722		)
Net effect of exchange rate on cash and cash equivalents and restricted cash	2,156			(2,146		)
Net increase in cash and cash equivalents and restricted cash	16,270			22,388
Cash and cash equivalents and restricted cash:
Beginning of period	56,898			69,118
End of period	$	73,168		$	91,506
Supplemental cash flow information:
Interest paid	$	118,276		$	110,139
Income taxes paid	$	3,958		$	3,725

See accompanying notes to consolidated financial statements.

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Endurance International Group Holdings, Inc.

Notes to Consolidated Financial Statements

(unaudited)

1. Nature of Business

Formation and Nature of Business

Endurance International Group Holdings, Inc. (“Holdings”) is a Delaware corporation, which, together with its wholly owned subsidiary company, EIG Investors Corp. (“EIG Investors”), its primary operating subsidiary company, The Endurance International Group, Inc. (“EIG”), and other subsidiaries of EIG, collectively form the “Company.” The Company is a leading provider of cloud-based platform solutions designed to help small- and medium-sized businesses succeed online.

EIG and EIG Investors were incorporated in April 1997 and May 2007, respectively, and Holdings was originally formed as a limited liability company in October 2011 in connection with the acquisition of a controlling interest in EIG Investors, EIG and EIG's subsidiaries by investment funds and entities affiliated with Warburg Pincus and Goldman, Sachs & Co. on December 22, 2011. On November 7, 2012, Holdings reorganized as a Delaware limited partnership and on June 25, 2013, Holdings converted into a Delaware C-corporation and changed its name to Endurance International Group Holdings, Inc.

2. Summary of Significant Accounting Policies

Basis of Preparation

The accompanying consolidated financial statements, which include the accounts of the Company and its subsidiaries, have been prepared using accounting principles generally accepted in the United States of America (“U.S. GAAP”). All intercompany transactions were eliminated on consolidation.

Segment Information

From the fourth quarter of fiscal year 2016, through the third quarter of fiscal year 2017, the Company had two reportable segments, web presence and email marketing. The Company experienced significant changes in its management structure during fiscal year 2017, including a change in its chief executive officer, who is the Company's chief operating decision maker ("CODM"). The Company's leadership structure has been revised to centralize management of certain domain-focused brands in order to improve overall performance. As a result of these management changes, management has revised internal financial reporting structures, and broken the former web presence segment into two reportable segments, web presence and domains. The Company's third reportable segment, email marketing, remains unchanged.

The products and services included in each of the three reportable segments are as follows:

Web Presence. The web presence segment consists primarily of the Company's web hosting brands, such as Bluehost and HostGator, and related products such as domain names, website security, website design tools and services, and e-commerce products.

Domain. The domain segment consists of domain-focused brands such as Domain.com, ResellerClub and LogicBoxes as well as certain web hosting brands that are under common management with domain-focused brands. This segment sells domain names and domain management services to resellers and end users, as well as premium domain names, and also generates advertising revenue from domain name parking. It also resells domain names and domain management services to the web presence segment.

Email Marketing. The email marketing segment consists of Constant Contact email marketing tools and related products and the SinglePlatform digital storefront solution.

The Company's segments share certain resources, primarily related to sales and marketing, engineering and general and administrative functions. Management allocates these costs to each respective segment based on a consistently applied methodology, primarily based on a percentage of revenue.

The Company has revised amounts reported for gross profit, net loss and adjusted EBITDA for the web presence and the domain segments in the segment disclosures, which impacted fiscal years 2016 and 2017. The amounts reported for the email marketing segment were not impacted. The revisions arose because of an error in the classification of certain domain registration expenses. Domain segment gross profit, net income (loss) and adjusted EBITDA were overstated by $3.0 million for fiscal year 2016, and by $6.9 million for fiscal year 2017, and web presence segment gross profit, net income (loss) and adjusted EBITDA were understated by equal amounts. Consolidated results were not impacted by this misstatement. See Note 21, Segment Information, for further details.

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Use of Estimates

U.S. GAAP requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets, liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. These estimates, judgments and assumptions used in preparing the accompanying consolidated financial statements are based on the relevant facts and circumstances as of the date of the consolidated financial statements. Although the Company regularly assesses these estimates, judgments and assumptions used in preparing the consolidated financial statements, actual results could differ from those estimates. Changes in estimates are recorded in the period in which they become known. The more significant estimates reflected in these consolidated financial statements include estimates of fair value of assets acquired and liabilities assumed under purchase accounting related to the Company’s acquisitions and when evaluating goodwill and long-lived assets for potential impairment, the estimated useful lives of intangible and depreciable assets, revenue recognition for multiple-element arrangements, stock-based compensation, contingent consideration, derivative instruments, certain accruals, reserves and deferred taxes.

Unaudited Interim Financial Information

The accompanying interim consolidated balance sheet as of September 30, 2018, and the related consolidated statements of operations and comprehensive loss for the three and nine months ended September 30, 2017 and 2018, cash flows for the nine months ended September 30, 2017 and 2018, and the notes to consolidated financial statements are unaudited. These unaudited consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements. The unaudited consolidated financial statements include, in the opinion of management, all adjustments, consisting only of normal recurring adjustments that are necessary for a fair presentation of the Company’s financial position at September 30, 2018, results of operations for the three and nine months ended September 30, 2017 and 2018 and cash flows for the nine months ended September 30, 2017 and 2018. The consolidated results in the consolidated statements of operations and comprehensive loss are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2018.

Cash Equivalents

Cash and cash equivalents include all highly liquid investments with remaining maturities of three months or less at the date of purchase.

Restricted Cash

Restricted cash is composed of certificates of deposit and cash held by merchant banks and payment processors, which provide collateral against any chargebacks, fees, or other items that may be charged back to the Company by credit card companies and other merchants, and collateral for certain facility leases.

Accounts Receivable

Accounts receivable is primarily composed of cash due from credit card companies for unsettled transactions charged to subscribers’ credit cards. As these amounts reflect authenticated transactions that are fully collectible, the Company does not maintain an allowance for doubtful accounts. The Company also accrues for earned referral fees and commissions, which are governed by reseller or affiliate agreements, when the amount is reasonably estimable.

Prepaid Domain Name Registry Fees

Prepaid domain name registry fees represent amounts that are paid in full at the time a domain is registered by one of the Company’s registrars on behalf of a customer. The registry fees are recognized on a straight-line basis over the term of the domain registration period.

Fair Value of Financial Instruments

The carrying amounts of the Company's financial instruments, which include cash equivalents, accounts receivable, accounts payable and certain accrued expenses, approximate their fair values due to their short maturities. The fair value of the Company's notes payable is based on the borrowing rates currently available to the Company for debt with similar terms and average maturities and approximates their carrying value.

Derivative Instruments and Hedging Activities

FASB Accounting Standards Codification ("ASC") 815, Derivatives and Hedging, or ASC 815, provides the disclosure requirements for derivatives and hedging activities with the intent to provide users of financial statements with an enhanced understanding of: (a) how and why an entity uses derivative instruments, (b) how the entity accounts for derivative instruments and related hedged items, and (c) how derivative instruments and related hedged items affect an entity’s financial position, financial performance, and cash flows. Further, qualitative disclosures are required that explain the Company’s objectives and

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strategies for using derivatives, as well as quantitative disclosures about the fair value of and gains and losses on derivative instruments, and disclosures about credit-risk-related contingent features in derivative instruments.

As required by ASC 815, the Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Derivatives may also be designated as hedges of the foreign currency exposure of a net investment in a foreign operation. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain of its risks, even though hedge accounting does not apply or the Company elects not to apply hedge accounting.

In accordance with the FASB’s fair value measurement guidance in FASB Accounting Standards Update ("ASU") 2011-4, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements, the Company made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.

Property and Equipment

Property and equipment is recorded at cost or fair value if acquired in an acquisition. The Company also capitalizes the direct costs of constructing additional computer equipment for internal use, as well as upgrades to existing computer equipment which extend the useful life, capacity or operating efficiency of the equipment. Capitalized costs include the cost of materials, shipping and taxes. Materials used for repairs and maintenance of computer equipment are expensed and recorded as a cost of revenue. Materials on hand and construction-in-process are recorded as property and equipment. Assets recorded under capital lease are depreciated over the lease term. Depreciation is computed using the straight-line method over the estimated useful lives of the related assets as follows: 

Building	Thirty-five years
Software	Two to three years
Computers and office equipment	Three years
Furniture and fixtures	Five years
Leasehold improvements	Shorter of useful life or remaining term of the lease

Software Development Costs

The Company accounts for software development costs for internal-use software under the provisions of ASC 350-40, Internal-Use Software. Accordingly, certain costs to develop internal-use computer software are capitalized, provided these costs are expected to be recoverable. During the three and nine months ended September 30, 2017, the Company capitalized internal-use software development costs of $2.2 million and $8.4 million, respectively. During the three and nine months ended September 30, 2018, the Company capitalized internal-use software costs of $2.8 million and $7.1 million, respectively.

Goodwill

Goodwill relates to amounts that arose in connection with the Company’s various business combinations and represents the difference between the purchase price and the fair value of the identifiable intangible and tangible net assets when accounted for using the purchase method of accounting. Goodwill is not amortized, but is subject to periodic review for impairment. Events that would indicate impairment and trigger an interim impairment assessment include, but are not limited to, current economic and market conditions, including a decline in the equity value of the Company's business, a significant adverse change in agreements that would materially affect reported operating results, business climate or operational performance of the business and an adverse action or assessment by a regulator. Additionally, a reorganization or change in the number of reporting units could result in the reassignment of goodwill between reporting units and may trigger an impairment assessment.

In accordance with ASC 350, Intangibles—Goodwill and Other, or ASC 350, the Company is required to review goodwill by reporting unit for impairment at least annually or more often if there are indicators of impairment present. Under U.S. GAAP, a reporting unit is either the equivalent of, or one level below, an operating segment. The Company has historically performed its annual goodwill test as of December 31 of each fiscal year.

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As a result of changes in the Company’s management structure during fiscal year 2017, including the change in its chief executive officer / CODM, the Company has revised its internal financial reporting structure, which has resulted in a change to its reporting units. The Company has identified a total of ten reporting units under the new structure. With the increase in reporting units, the Company determined that more time would be required to perform future goodwill impairment tests, and as a result, decided to accelerate its annual goodwill impairment test date to October 31 of each fiscal year, starting with the fiscal year 2017 test.

Before testing goodwill at October 31, 2017, the Company allocated assets and liabilities to their respective reporting units. Goodwill was allocated to each reporting unit in accordance with ASC 350-20-40, which requires that goodwill be allocated based on the relative fair values of each reporting unit. After completing this valuation process, the Company allocated goodwill to seven reporting units. The Company did not allocate any goodwill to three smaller reporting units that were determined to have no material fair value.

The carrying value of each reporting unit is based on the assignment of the appropriate assets and liabilities to each reporting unit. Assets and liabilities were assigned to each reporting unit if the assets or liabilities are employed in the operations of the reporting unit and the asset and liability is considered in the determination of the reporting unit fair value. Certain assets and liabilities are shared by multiple reporting units, and were allocated to each reporting unit based on the relative size of a reporting unit, primarily based on revenue.

The fair value of each reporting unit is determined by the income approach. The Company also compared the fair value from the income approach to a market based approach to validate that the value derived from the income approach was reasonable. For the income approach, fair value is determined based on the present value of estimated future after-tax cash flows, discounted at an appropriate risk adjusted rate. The Company uses internal forecasts to estimate future after-tax cash flows, which includes an estimate of long-term future growth rates based on the long-term outlook for each reporting unit. Actual results may differ from those assumed in each forecast.

The Company derives discount rates using a capital asset pricing model and analyzing published rates for industries relevant to the reporting units to estimate the weighted average cost of capital. The Company uses discount rates that are commensurate with the risks and uncertainty inherent in the business and in internally developed forecasts. For fiscal year 2017, the Company used a discount rate of 10.0%, and also performed sensitivity analysis on the discount rates. For the market approach validation, values were derived based on valuation multiples from sales of comparable companies.

The Company has also early adopted the provisions of ASU 2017-4, which eliminates the second step of the goodwill impairment test. As a result, the goodwill impairment test as of October 31, 2017 includes only one step, which is a comparison of the carrying value of each reporting unit to its fair value, and any excess carrying value, up to the amount of goodwill allocated to that reporting unit, is impaired. The goodwill impairment test as of October 31, 2017 resulted in a $12.1 million impairment of goodwill to the Company's domain monetization reporting unit within the domain segment. The impairment is a direct result of a more rapid decline in domain parking revenue than originally expected, and to a lesser extent, reduced sales of premium domain names. Goodwill for this reporting unit has been completely impaired. Goodwill allocated to the other six reporting units was not impaired.

Goodwill as of December 31, 2017 was $1,850.6 million. Approximately $1,820.7 million of this goodwill relates to reporting units where fair value exceeds the carrying value of the respective reporting unit by at least 20%. One reporting unit, the domain.com reporting unit within the domain segment, has a goodwill balance of $29.9 million, and a fair value that exceeds its carrying value by 6%. The Company has one reporting unit, the cloud backup reporting unit within the web presence segment, that has a negative carrying value and has been allocated $2.3 million of goodwill.

During the quarter ended March 31, 2018, the Company further adjusted management responsibilities regarding certain reporting units, which resulted in additional adjustments to internal financial reporting structures. The total number of reporting units remains at ten, however, goodwill was reallocated between reporting units as a result of this change. The Company estimated the amount of goodwill to be reallocated at $48.0 million. The Company tested goodwill for impairment based on the goodwill reallocation. No impairment charge was identified as a result of this test.

Goodwill as of September 30, 2018 is $1,849.3 million. The carrying value of goodwill that was allocated to the domain, email marketing and web presence reporting segments was $29.9 million, $604.3 million and $1,215.1 million, respectively. For the three and nine months ended September 30, 2018, no impairment triggering events were identified and no impairment has been recorded.

Long-Lived Assets

The Company’s long-lived assets consist primarily of intangible assets, including acquired subscriber relationships, trade names, intellectual property, developed technology, domain names available for sale and in-process research and development (“IPR&D”). The Company also has long-lived tangible assets, primarily consisting of property and equipment. The majority of the Company’s intangible assets are recorded in connection with its various acquisitions. The Company’s intangible assets are

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recorded at fair value at the time of their acquisition. The Company amortizes intangible assets over their estimated useful lives.

Determination of the estimated useful lives of the individual categories of intangible assets is based on the nature of the applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with finite lives other than developed technology is recognized in accordance with their estimated projected cash flows.

The Company evaluates long-lived intangible and tangible assets whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If indicators of impairment are present and undiscounted future cash flows are less than the carrying amount, the fair value of the assets is determined and compared to the carrying value. If the fair value is less than the carrying value, then the carrying value of the asset is reduced to the estimated fair value and an impairment loss is charged to expense in the period the impairment is identified. During the three and nine months ended September 30, 2017, the Company recognized an impairment charge of $13.8 million relating to certain domain name intangible assets acquired in 2014, which was recorded in cost of revenue in the consolidated statements of operations and comprehensive loss. The impairment resulted from diminished cash flows associated with this intangible asset. No such impairment losses have been identified in the three and nine months ended September 30, 2018.

Indefinite life intangible assets include domain names that are available for sale which are recorded at cost to acquire. These assets are not being amortized and are being tested for impairment annually and whenever events or changes in circumstance indicate that their carrying value may not be recoverable. When a domain name is sold, the Company records the cost of the domain in cost of revenue.

Acquired In-Process Research and Development (IPR&D)

Acquired IPR&D represents the fair value assigned to research and development assets that the Company acquires in connection with business combinations that have not been completed at the date of acquisition. The acquired IPR&D is capitalized as an intangible asset and reviewed on a quarterly basis to determine future use. Any impairment loss of the acquired IPR&D is charged to expense in the period the impairment is identified. No impairment loss was identified during the nine months ended September 30, 2017 and 2018.

Revenue Recognition

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), or ASU 2014-09 or ASC 606, which supersedes nearly all existing revenue recognition guidance under U.S. GAAP. Since then, the FASB has also issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606), Principals versus Agent Considerations, ASU 2016-10, Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing, and ASU 2017-13, Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Amendments to SEC Paragraphs Pursuant to the Staff Announcement at the July 20, 2017 EITF Meeting and Rescission of Prior SEC Staff Announcements and Observer Comments, which further elaborate on the original ASU No. 2014-09. The Company adopted the guidance in ASC 606 on January 1, 2018. Revenue is recognized when control of the promised products or services is transferred to the Company’s customers, in an amount that reflects the consideration the Company expects to be entitled to for those products and services. In general, the Company determines revenue recognition through the following steps:

• Identification of the contract, or contracts, with the customer

• Identification of the performance obligations in the contract

• Determination of the transaction price

• Allocation of the transaction price to the performance obligations in the contract

• Recognition of revenue when, or as, the Company satisfies a performance obligation.

The Company provides cloud-based subscription services, which include website hosting and related add-ons, search engine optimization (SEO) services, domain registration services and email marketing.

Website hosting gives subscribers access to an environment where the Company hosts a customer’s website. The related contract terms are generally for one year, but can range from 30 days to 3 years. Website hosting services are typically sold in bundled offerings that include website hosting, domain registration services and various add-ons. The Company recognizes revenue for website hosting and domain registration services over the term of the contract.

The main add-on services related to website hosting are domain privacy, secure sockets layer (SSL) security, site backup and restoration, and website builder tools. These services may be included in website hosting bundles, or they may be purchased on a standalone basis. Certain add-on services are provided by third parties. In cases where the Company is acting as an agent for the sale of third party add-on services, the Company recognizes revenue on a net basis at the time of sale. In cases where the Company is acting as a principal for the sale of third party add-on services (i.e., the Company has the primary responsibility to provide specific goods or services, it has discretion to establish prices and it may assume inventory risk), the

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Company recognizes revenue on a gross basis over the term of the contract. The revenue for Company-provided add-on services is primarily recognized over the term of the contract.

SEO services are monthly subscriptions that provide a customer with increased traffic to their website over the term of the subscription. Revenue from SEO services is recognized over the monthly term of the contract.

In the case of domain registration services, the Company is an accredited registrar and can provide registration services to the customer, or it can select an accredited third party registrar to perform these duties. Domain registration services are generally annual subscriptions, but can cover multiple years. Revenue for these services is recognized over time.

Email marketing services provide subscribers with a cloud based platform that can send broadcast emails to a customer list managed by the subscriber. Pricing is based on contract list volume from the prior monthly period, which determines the contractual billing price for the upcoming month. Revenue for this service is recognized over the monthly term of the contract.

Non-subscription based services include certain professional services, primarily website design or re-design services, marketing development fund revenue ("MDF"), premium domain names and domain parking services.

Website design and re-design services are recognized when the service is complete.

Marketing development funds consist of commissions earned by the Company when a third party sells its products or services directly to the Company’s subscribers, and advertising revenue for third party ads placed on Company websites. The Company records revenue when the service is provided and calculates it based on the contractual revenue share arrangement or over the term of the advertisement.

Domain parking allows the Company to monetize certain of its premium domain names by loaning them to specialized third parties that generate advertising revenue from these parked domains on a pay per click ("PPC") basis. Revenue is recognized when earned and calculated based on the revenue share arrangement with the third party.

Revenue from the sale of premium domains is recognized when persuasive evidence of an arrangement to sell such domains exists and delivery of an authorization key to access the domain name has occurred. Premium domain names are paid for in advance prior to the delivery of the domain name.

For most of the Company’s performance obligations, the customer simultaneously receives and consumes the service over a period of time as the Company performs the service, resulting in the recognition of revenue over the subscription period. This method provides an appropriate depiction of the timing of the transfer of services to the customer. In limited instances, the customer obtains control of the promised service at a point in time, with no future obligations on the part of the Company. In these instances, the Company recognizes revenue at the point in time control is transferred. The contracts that the Company enters into typically do not contain any variable or non-cash considerations.

The Company maintains a reserve for refunds and chargebacks related to revenue that has been recognized and is expected to be refunded, as calculated based on observed historical trends. The Company had a refund and chargeback reserve of $0.5 million and $0.3 million as of December 31, 2017 and September 30, 2018, respectively. The portion of deferred revenue that is expected to be refunded at December 31, 2017 and September 30, 2018 was $1.8 million and $1.8 million, respectively. Based on refund history, approximately 83% of all refunds happen in the same fiscal month that the contract starts or renews, and approximately 96% of all refunds happen within 45 days of the contract start or renewal date.

The Company did not apply any practical expedients during its adoption of ASC 606. The Company elected to use the portfolio method in the calculation of the deferred contract assets.

Contracts with Multiple Performance Obligations

A considerable amount of the Company’s revenue is generated from transactions that are contracts with customers that may include hosting plans, domain name registrations, and other cloud-based products and services. In these cases, the Company determines whether the products and services are distinct performance obligations that should be accounted for separately versus together. The Company allocates revenue to each performance obligation based on its relative standalone selling price, generally based on the price charged to customers. Hosting services, domain name registrations, and other cloud-based products and services have distinct performance obligations and are often sold separately. If the promise is not distinct and therefore not a performance obligation, then the total transaction amount is allocated to the identified performance obligation based on a relative selling price hierarchy. When multiple performance obligations are included in a contract, the total transaction amount for the contract is allocated to the performance obligations based on a relative selling price hierarchy. The Company determines the relative selling price for a performance obligation based on standalone selling price (“SSP”). The Company determines SSP by considering its observed standalone selling prices, competitive prices in the marketplace and management judgment; these standalone selling prices may vary depending upon the particular facts and circumstances related to each deliverable. The Company analyzes the standalone selling prices used in its allocation of transaction amount, at a minimum, on a quarterly basis.

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Deferred Revenue

The Company records deferred revenue when cash payments are received or are due in advance of the Company’s performance, including amounts that are refundable. The change in the deferred revenue balance for the nine months ended September 30, 2018 is primarily driven by cash payments received or due in advance of the Company satisfying its performance obligations, offset by $331.9 million of revenue recognized that were included in the deferred revenue balance at the beginning of the period.

The following table provides a reconciliation of the Company's deferred revenue as of September 30, 2018:

	Short-term			Long-term
	(in thousands)
Balance at December 31, 2017	$	361,940		$	90,972
Effect of adoption of ASC 606 to balances at December 31, 2017	20,275			2,882
Recognition of the beginning deferred revenue into revenue, as a result of performance obligations satisfied	(331,939		)	—
Cash received in advance during the period	657,821			193,119
Recognition of cash received in the period into revenue, as a result of performance obligations satisfied	(518,087		)	—
Reclassification between short-term and long-term	190,554			(190,554		)
Balance at September 30, 2018	$	380,564		$	96,419

The difference between the opening and closing balances of the Company’s deferred liabilities primarily results from the timing difference between the Company’s performance and the customer’s payment. During the nine months ended September 30, 2018, the Company recognized $331.9 million and $0.0 million, respectively, from beginning deferred revenue current and long-term balances existing at December 31, 2017. The Company did not recognize any revenue from performance obligations satisfied in prior periods.

The following table provides the remaining performance obligation amounts as of September 30, 2018. These amounts are equivalent to the ending deferred revenue balance of $477.0 million, which includes both short and long-term amounts:

	Web presence		Email marketing		Domain		Total
	(in thousands)
Remaining performance obligation, short-term	$	265,984	$	55,055	$	59,525	$	380,564
Remaining performance obligation, long-term	81,805		—		14,614		96,419
Total	$	347,789	$	55,055	$	74,139	$	476,983

This backlog of revenue related to future performance obligations is prepaid by customers and supported by executed contracts with customers. The Company has established a reserve of $0.3 million for refunds and chargebacks, 96% of which is expected to materialize in the first 45 days. The remainder of the deferred revenue is expected to be recognized in future periods.

Deferred Customer Acquisition Costs

As a result of the implementation of ASC 606, the Company now capitalizes the incremental costs directly related to obtaining and fulfilling a contract (such as sales commissions and certain direct sales and marketing success based costs), if these costs are expected to be recovered. These costs are amortized over the period the services are transferred to the customer, which is estimated based on customer churn rates for various segments of the business. The Company includes only those

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incremental costs that would not have been incurred if the contracts had not been entered into:

	Short-term			Long-term
	(in thousands)
Balance at December 31, 2017	$	—		$	—
Adjustments resulting from adoption of ASC 606	43,408			40,040
Deferred customer acquisition costs incurred in the period	13,391			25,307
Amounts recognized as expense in the period	(38,192		)	—
Impact of foreign exchange rates	(142		)	13
Reclassification between short-term and long-term	23,279			(23,279		)
Balance at September 30, 2018	$	41,744		$	42,081

As of September 30, 2018, the Company has a total of $71.0 million in deferred assets relating to costs incurred to obtain or fulfill contracts in its web presence segment, consisting of $0.0 million of incremental, recoverable sales and marketing costs, and $71.0 million of recoverable, specific, success-based sales commissions. As of September 30, 2018, the Company has a total of $11.4 million deferred assets relating to costs incurred to obtain or fulfill contracts in its email marketing segment, consisting of $0.0 million of incremental, recoverable sales and marketing costs, and $11.4 million of recoverable, specific, success-based sales commissions. As of September 30, 2018, the Company has a total of $1.4 million deferred assets relating to costs incurred to obtain or fulfill contracts in its domain segment, consisting of $0.0 million of incremental, recoverable sales and marketing costs, and $1.4 million of recoverable, specific, success-based sales commissions. During the nine months ended September 30, 2018, the Company recognized total amortization costs related to the above items of $34.5 million, $3.4 million, and $0.3 million in its web presence, email marketing and domain segments, respectively.

Significant Judgments

The Company sells a number of third party cloud based services to enhance a subscriber’s overall website hosting experience. The Company exercises considerable judgment to determine if it is the principal or agent in each of these arrangements, and in some instances, has concluded that it is an agent of the third party and recognizes revenue at time of subscriber purchase in an amount that is net of the revenue share payable to the third party.

The Company exercises judgment to determine the standalone selling price for each distinct performance obligation. In instances where the standalone selling price is not directly observable, such as when the Company does not sell the product or service separately, the Company determines the standalone selling price using information that may include a competitive market assessment approach and other observable inputs. The Company typically has more than one standalone selling price for individual products and services.

Judgment is required to determine whether particular types of sales and marketing costs incurred, including commissions, are incremental and recoverable costs incurred to obtain and fulfill the customer contract. In addition, judgment is required to determine the life of the customer over which deferred customer acquisition costs are amortized.

Income Taxes

Income taxes are accounted for in accordance with ASC 740, Accounting for Income Taxes, or ASC 740. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry-forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

ASC 740 clarifies the accounting for income taxes by prescribing a minimum recognition threshold that a tax position is required to meet before being recognized in the financial statements. The Company recognizes the effect of income tax positions only if those positions are more likely than not to be sustained. Recognized income tax positions are measured at the largest amount that is more likely than not to be realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company had unrecognized tax benefits at December 31, 2017 and September 30, 2018 of $1.1 million and $2.9 million, respectively.

The Company records interest related to unrecognized tax benefits in interest expense and penalties in operating expenses. During the three and nine months ended September 30, 2017, the Company did not incur any interest and penalties related to unrecognized tax benefits. During the three months ended September 30, 2018, the Company recognized $0.1 million of interest and penalties related to unrecognized tax benefits. During the nine months ended September 30, 2018, the Company recognized $0.3 million of interest and penalties related to unrecognized tax benefits.

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Stock-Based Compensation

The Company may issue restricted stock units, restricted stock awards and stock options which vest upon the satisfaction of a performance condition and/or a service condition. The Company follows the provisions of ASC 718, Compensation—Stock Compensation, or ASC 718, which requires employee stock-based payments to be accounted for under the fair value method. Under this method, the Company is required to record compensation cost based on the estimated fair value for stock-based awards granted over the requisite service periods for the individual awards, which generally equals the vesting periods, net of estimated forfeitures. The Company uses the straight-line amortization method for recognizing stock-based compensation expense. In addition, for stock-based awards where vesting is dependent upon achieving certain performance goals, the Company estimates the likelihood of achieving the performance goals against established performance targets.

The Company estimates the fair value of employee stock options on the date of grant using the Black-Scholes option-pricing model, which requires the use of highly subjective estimates and assumptions. For restricted stock awards and restricted stock units granted, the Company estimates the fair value of each restricted stock award or restricted stock unit based on the closing trading price of its common stock on the date of grant.

Net Loss per Share

The Company considered ASC 260-10, Earnings per Share, or ASC 260-10, which requires the presentation of both basic and diluted earnings per share in the consolidated statements of operations and comprehensive loss. The Company’s basic net loss per share is computed by dividing net loss by the weighted average number of shares of common stock outstanding for the period, and, if there are dilutive securities, diluted income per share is computed by including common stock equivalents which includes shares issuable upon the exercise of stock options, net of shares assumed to have been purchased with the proceeds, using the treasury stock method.

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2018			2017			2018
	(unaudited) (in thousands, except share amounts and per share data)
Net loss attributable to Endurance International Group Holdings, Inc.	$	(40,264	)	$	(6,335	)	$	(114,781	)	$	(8,236	)
Net loss per share attributable to Endurance International Group Holdings, Inc.:
Basic net loss per share attributable to Endurance International Group Holdings, Inc.	$	(0.29	)	$	(0.04	)	$	(0.84	)	$	(0.06	)
Diluted net loss per share attributable to Endurance International Group Holdings, Inc.	$	(0.29	)	$	(0.04	)	$	(0.84	)	$	(0.06	)
Weighted-average common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:
Basic	137,793,609			143,107,122			136,688,115			141,946,574
Diluted	137,793,609			143,107,122			136,688,115			141,946,574

The following number of weighted average potentially dilutive shares were excluded from the calculation of diluted loss per share because the effect of including such potentially dilutive shares would have been anti-dilutive:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2018	2017	2018
	(unaudited)
Restricted stock awards and units	7,782,806	6,915,158	6,974,708	6,470,097
Options	10,593,596	8,362,719	10,947,661	8,644,464
Total	18,376,402	15,277,877	17,922,369	15,114,561

Recent Accounting Pronouncements - Recently Adopted

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), or ASU 2014-09, which supersedes nearly all existing revenue recognition guidance under U.S. GAAP. Since then, the FASB has also issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606), Principals versus Agent Considerations, ASU 2016-10, Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing, and ASU 2017-13, Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Amendments to SEC Paragraphs Pursuant to the Staff Announcement at the July 20, 2017 EITF Meeting and Rescission of Prior SEC Staff Announcements and Observer Comments, which further elaborate on the original ASU No. 2014-09. The core principle of these updates is to

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recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the entity expects to be entitled for those goods or services. ASU 2014-09 defines a five step process to achieve this core principle and, in doing so, more judgments and estimates may be required within the revenue recognition process than are required under previous U.S. GAAP. In July 2015, the FASB approved a one-year deferral of the effective date to January 1, 2018, with early adoption to be permitted as of the original effective date of January 1, 2017. Once this standard became effective, companies may use either of the following transition methods: (i) a full retrospective approach reflecting the application of the standard in each reporting period with the option to elect certain practical expedients, or (ii) a retrospective approach with the cumulative effect of initially adopting ASU 2014-09 recognized at the date of adoption (which includes additional footnote disclosures) (the "modified retrospective approach"). The Company adopted this guidance on January 1, 2018 using the modified retrospective approach. The new standard impacted the timing of when certain sales incentive payments, primarily to external parties, are charged to expense as these costs must now be deferred over the life of the related customer relationship, whereas previously these amounts were expensed as incurred. In addition, a small portion of the Company's revenue recognition was impacted by this new guidance. The impact to opening retained earnings as a result of the adoption of the new guidance was $59.4 million, which consists of an $83.4 million deferred asset relating to customer acquisition costs and a $6.1 million deferred asset for domain registration costs, partially offset by a $23.1 million liability for deferred revenue, net of a deferred tax liability of $7.0 million. The Company applied the new guidance to all revenue contracts and did not use any practical expedients. The adoption of Topic 606 impacted the results of operations and certain balance sheet accounts. The impact of applying Topic 606 on the results for reporting periods and balance sheet beginning after January 1, 2018 is presented under Topic 606, while prior amounts are not adjusted and continue to be reported in accordance with the

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Company’s historic accounting under Topic 605. The impact of applying Topic 606 as of September 30, 2018 is as follows:

	For the three months ended September 30, 2018 under topic 606			For the three months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of operations and comprehensive loss data	(in thousands)
Revenue	$	283,770		$	284,343		$	(573	)
Cost of revenue	128,945			128,583			362
Sales and marketing	63,831			63,816			15
	As of September, 2018 under topic 606			As of September 30, 2018 under topic 605			Increase (decrease)
Consolidated balance sheet data	(in thousands)
Prepaid commissions, current portion	$	41,744		$	—		$	41,744
Prepaid commissions, long-term	42,081			—			42,081
Deferred revenue, current	380,564			379,343			1,221
Deferred revenue, long-term	96,419			96,419			—
	For the three months ended September 30, 2018 under topic 606			For the three months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of cash flow data	(in thousands)
Net (loss) income	$	(6,335	)	$	(6,139	)	$	(196	)
Change in prepaid expenses and other assets	5,527			5,904			(377		)
Change in deferred revenue	(4,691		)	(4,118		)	573
Cash flows from operations	51,341			51,341			—
	For the nine months ended September 30, 2018 under topic 606			For the nine months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of operations and comprehensive loss data	(in thousands)
Revenue	$	862,896		$	864,117		$	(1,221	)
Cost of revenue	393,597			393,345			252
Sales and marketing	197,733			198,240			(507		)
	As of September, 2018 under topic 606			As of September 30, 2018 under topic 605			Increase (decrease)
Consolidated balance sheet data	(in thousands)
Prepaid commissions, current portion	$	41,744		$	—		$	41,744
Prepaid commissions, long-term	42,081			—			42,081
Deferred revenue, current	380,564			379,343			1,221
Deferred revenue, long-term	96,419			96,419			—
	For the nine months ended September 30, 2018 under topic 606			For the nine months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of cash flow data	(in thousands)
Net (loss) income	$	(8,236	)	$	(7,270	)	$	(966	)
Change in prepaid expenses and other assets	(3,033		)	(2,778		)	(255		)
Change in deferred revenue	3,502			4,723			1,221
Cash flows from operations	133,593			133,593			—

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities. This new standard enhances the reporting model for financial instruments to provide

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users of financial statements with more decision-useful information. This amendment is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. The adoption of this standard did not have a material impact on the Company's consolidated financial statements.

In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows: Restricted Cash. This new standard requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and restricted cash. This amendment is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. The adoption of this standard did not have a material impact on the Company's statement of cash flows.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows: Classification ofCertain Cash Receipts and Cash Payments. This new standard clarifies certain statement of cash flow presentation issues. This amendment is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. The adoption of this standard did not have a material impact on the Company's statement of cash flows.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other: Simplifying the Test for Goodwill Impairment. This new standard eliminates step two of the prior goodwill test, and instead requires that an entity perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. This amendment is effective for annual or interim goodwill impairment tests in fiscal years beginning after December 31, 2019, and should be applied on a prospective basis. The Company elected to early adopt the provisions of ASU 2017-04 effective in the fourth quarter of fiscal year 2017, which simplified the process of calculating the $12.1 million impairment to goodwill during the fourth quarter of fiscal year 2017.

In May 2017, the FASB issued ASU No. 2017-09, Compensation - Stock Compensation (Topic 718). This new standard provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. This amendment is effective for annual or interim periods in fiscal years beginning after December 15, 2017, and should be applied prospectively to an award modified on or after the adoption date. The Company adopted this guidance as of January 1, 2018 and will apply this guidance to any modifications, based on the new definition of a modification, for all periods beginning on or after January 1, 2018. During the three and nine months ended September 30, 2018, there were no modifications that would impact the Company's consolidated financial statements.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. This new guidance better aligns an entity's risk management activities and financial reporting for hedging relationships through changes to the designation and measurement guidance for qualifying hedging relationships and to the method of presenting hedge results. The amendments in this guidance require an entity to present the earnings effect of the hedging instrument in the same income statement line item in which the earnings effect of the hedged item is reported, to allow users to better understand the results and costs of an entity's hedging program. This new guidance is effective for fiscal years beginning after December 15, 2019 and early adoption is allowed. The amended presentation and disclosure guidance is required only prospectively, while the measurement guidance should be applied to hedges existing at the time of adoption through a one-time cumulative-effect adjustment to accumulated other comprehensive income with respect to the elimination of the separate measurement of ineffectiveness with a corresponding adjustment to the opening balance of the retained earnings. The Company adopted this guidance on June 1, 2018 using the modified retrospective approach. The adoption of the new guidance did not have a material impact on the Company's consolidated financial statements.

Recent Accounting Pronouncements - Recently Issued

In February 2016, the FASB issued ASU No. 2016-02, Leases. Since then, the FASB has also issued ASU No. 2018-10, Codification Improvements to Topic 842, Leases, which further clarifies ASU No. 2016-02 and corrects unintended application of guidance. The new standard establishes a right-of-use ("ROU") model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The new standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. A modified retrospective transition approach is required for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. The Company is currently evaluating the impact of its pending adoption of the new standard on its consolidated financial statements, but expects that the adoption will materially increase its assets and liabilities.

In October 2016, the FASB issued ASU No. 2016-16, Income Taxes: Intra-Entity Transfers ofAssets Other Than Inventory. This new standard improves the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. This amendment is effective for annual periods beginning after December 15, 2018, and early adoption is permitted. The Company does not believe the adoption of this ASU will have a material impact on its consolidated financial statements.

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In July 2018, the FASB issued ASU No. 2018-07, Compensation - Stock Compensation (Topic 718). The new guidance expands the scope of Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees. The amendments in ASU No. 2018-07 specify that Topic 718 applies to all share-based payment transactions in which a grantor acquires goods or services to be used or consumed in a grantor's own operations by issuing share-based payment awards to a non-employee. The amendments also clarify that Topic 718 does not apply to share-based payments used to effectively provide (1) financing to the issuer or (2) awards granted in conjunction with selling goods or services to customers as part of a contract accounted for under Topic 606, Revenue from Contract with Customers. The new guidance is effective for public companies for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years and early adoption is permitted, provided the company has already adopted the guidance in Topic 606. A company should only remeasure liability-classified awards that have not been settled by the date of adoption and equity-classified awards for which a measurement date has not been established through a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. Upon transition, the company is required to measure these nonemployee awards at fair value as of the adoption date. The Company does not believe the adoption of this ASU will have a material impact on its consolidated financial statements.

3. Correction of Income Tax Expense - Fiscal Year 2018

The Company has revised its deferred income tax provision for the first and second quarter of 2018 to reflect a revision that favorably impacted net income (loss) for these periods.

During fiscal year 2017, the Company began a process to reorganize, and in some instances, eliminate legal entities associated with certain products introduced in 2015 and 2016. This reorganization is expected to provide tax benefits, as the Company can deduct losses on the investments in these entities in its U.S. income tax filings. After further review of these losses, the Company has determined that a significant portion of these losses should have been reflected in its 2017 income tax provision calculations. The Company has increased its net operating loss ("NOL") carry-forwards available to offset future U.S. federal taxable income from $157.6 million as of December 31, 2017, to $236.3 million. Additionally, NOL carry-forwards available to offset future state taxable income were increased from $128.6 million as of December 31, 2017, to $168.3 million. These changes in NOL carry-forwards did not impact the actual income tax provision recorded in 2017; however, due to the changes enacted in the 2017 Tax Cuts and Jobs Act, the manner in which net operating loss carry-forwards are handled does impact the Company's 2018 provision for non-cash deferred income taxes. The impact of this revision on the Company’s financial statements as originally filed for the first and second quarter of fiscal year 2018 is detailed below.

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The following table represents the impact of the income statement revision to the first and second quarters of 2018 due to the revised deferred income tax provision (in thousands, except per share data):

	Three Months Ended March 31, 2018									Three Months Ended June 30, 2018
	Originally Filed			Adjustment			Revised			Originally Filed			Adjustment			Revised
Loss before income taxes and equity earnings of unconsolidated subsidiaries	$	(4,444	)	$	—		$	(4,444	)	$	(344	)	$	—		$	(344	)
Income tax expense (benefit)	2,617			(4,560		)	(1,943		)	1,650			(2,596		)	(946		)
Loss before equity earnings of unconsolidated subsidiaries	(7,061		)	$	4,560		$	(2,501	)	(1,994		)	$	2,596		$	602
Equity (income) loss of unconsolidated subsidiaries	27			—			27			$	(25	)				(25		)
Net income (loss)	$	(7,088	)	$	4,560		$	(2,528	)	$	(1,969	)	$	2,596		$	627
Comprehensive income (loss)
Foreign currency translation	580			—			580			(2,425		)	—			(2,425		)
Unrealized (gain) loss on cash flow hedge, net of tax	1,041			—			1,041			144			—			144
Total comprehensive loss	$	(5,467	)	$	4,560		$	(907	)	$	(4,250	)	$	2,596		$	(1,654	)
Basic net income (loss) per share	$	(0.05	)	$	0.03		$	(0.02	)	$	(0.01	)	$	0.01		$0.00
Diluted net income (loss) per share	$	(0.05	)	$	0.03		$	(0.02	)	$	(0.01	)	$	0.01		$0.00
Weighted-average common shares used in computing net income (loss) per share
Basic	140,361,982			—			140,361,982			142,340,561			—			142,340,561
Diluted	140,361,982			—			140,361,982			142,340,561			2,361,441			144,702,002

	Six Months Ended June 30, 2018
	Originally Filed			Adjustment			Revised
Loss before income taxes and equity earnings of unconsolidated subsidiaries	$	(4,788	)	$	—		$	(4,788	)
Income tax expense (benefit)	4,267			(7,156		)	(2,889		)
Loss before equity earnings of unconsolidated subsidiaries	(9,055		)	7,156			(1,899		)
Equity (income) loss of unconsolidated subsidiaries	2			—			2
Net income (loss)	(9,057		)	7,156			$	(1,901	)
Comprehensive income (loss)
Foreign currency translation	(1,845		)	—			(1,845		)
Unrealized gain on cash flow hedge, net of tax	1,184			—			1,184
Total comprehensive loss	(9,718		)	7,156			$	(2,562	)
Basic net income (loss) per share	$	(0.06	)	$	0.05		$	(0.01	)
Diluted net income (loss) per share	$	(0.06	)	$	0.05		$	(0.01	)
Weighted-average common shares used in computing net income (loss) per share
Basic	141,356,567			—			141,356,567
Diluted	141,356,567			—			141,356,567

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The following table represents the impact of the revised deferred income tax provision on the impacted balance sheet accounts as of the dates shown (in thousands):

	March 31, 2018									June 30, 2018
	Originally Filed			Adjustment			Revised			Originally Filed			Adjustment			Revised
Deferred tax liability	$	27,679		$	(4,560	)	$	23,119		$	29,897		$	(7,156	)	$	22,741
Total liabilities	2,533,619			(4,560		)	2,529,059			2,490,106			(7,156		)	2,482,950
Accumulated deficit	(795,206		)	4,560			(790,646		)	(797,175		)	7,156			(790,019		)
Total stockholders' equity	144,189			4,560			148,749			147,759			7,156			154,915
Total liabilities and stockholders' equity	2,677,808			—			2,677,808			2,637,865			—			2,637,865

The following table represents the impact of the revised deferred income tax provision on the impacted lines of the statement of cash flows for the periods shown (in thousands):

	Three Months Ended March 31, 2018									Six Months Ended June 30, 2018
	Originally Filed			Adjustment			Revised			Originally Filed			Adjustment			Revised
Net income (loss)	$	(7,088	)	$	4,560		$	(2,528	)	$	(9,057	)	$	7,156		$	(1,901	)
Deferred tax expense	492			(4,560		)	(4,068		)	2,672			(7,156		)	(4,484		)
Net cash provided by operating activities	52,360			—			52,360			82,252			—			82,252

4. Acquisitions

The Company did not make any acquisitions during the three and nine months ended September 30, 2017 and 2018. The Company has a remaining deferred consideration liability related to its acquisition of AppMachine B.V., which had taken place in 2016. Deferred consideration at December 31, 2017 related to AppMachine was $7.9 million, of which, $4.4 million was classified as short-term. Deferred consideration at September 30, 2018 related to AppMachine was $3.7 million, of which $2.4 million was classified as short-term.

5. Property and Equipment and Capital Lease Obligations

Components of property and equipment consisted of the following:

	December 31, 2017			September 30, 2018
	(in thousands)
Land	$	790		$	790
Building	5,037			7,294
Software	82,618			88,376
Computers and office equipment	153,273			158,188
Furniture and fixtures	18,825			19,259
Leasehold improvements	22,260			19,672
Construction in process	3,800			2,215
Property and equipment—at cost	286,603			295,794
Less accumulated depreciation	(191,151		)	(216,479		)
Property and equipment—net	$	95,452		$	79,315

Depreciation expense related to property and equipment for the three months ended September 30, 2017 and 2018 was $13.6 million and $11.9 million, respectively. Depreciation expense related to property and equipment for the nine months ended September 30, 2017 and 2018 was $40.7 million and $36.8 million, respectively.

Property under capital lease with a cost basis of $15.5 million was included in software as of September 30, 2018. The net carrying value of property under capital lease as of September 30, 2018 was $10.6 million.

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6. Fair Value Measurements

The following valuation hierarchy is used for disclosure of the valuation inputs used to measure fair value. This hierarchy prioritizes the inputs into three broad levels as follows:

• Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities.

• Level 2 inputs are quoted prices for similar assets or liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument.

• Level 3 inputs are unobservable inputs based on the Company’s own assumptions used to measure assets and liabilities at fair value.

A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.

As of December 31, 2017 and September 30, 2018, the Company’s financial assets required to be measured on a recurring basis consist of the 2015 interest rate cap and the 2018 interest rate cap. The Company has classified these interest rate caps, which are discussed in Note 7 below, within Level 2 of the fair value hierarchy.

Basis of Fair Value Measurements

	Balance		Quoted Prices in Active Markets for Identical Items (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Balance at December 31, 2017
Financial assets:
Interest rate cap (included in other assets)	$	452	—		$	452	$	—
Total financial assets	$	452	$	—	$	452	$	—
Balance at September 30, 2018
Financial assets:
Interest rate caps (included in other assets)	$	6,863	—		$	6,863	$	—
Total financial assets	$	6,863	$	—	$	6,863	$	—

The carrying amounts of the Company's other financial assets and liabilities including cash, accounts receivable, accounts payable and accrued liabilities approximate their respective fair values because of the relatively short period of time between their origination and their expected realization or settlement.

7. Derivatives and Hedging Activities

Risk Management Objective of Using Derivatives

The Company is exposed to certain risk arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its debt funding and the use of derivative financial instruments. Specifically, the Company may enter into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s investments and borrowings.

Cash Flow Hedges of Interest Rate Risk

The Company has entered into twothree-year interest rate caps as part of its risk management strategy. The interest rate caps, designated as cash flow hedges of interest rate risk, provide for the payment to the Company of variable amounts if interest rates rise above the strike rate on the contract in exchange for an upfront premium. Therefore, these derivatives limit the Company’s exposure if the interest rate rises, but also allow the Company to benefit when the interest rate falls.

The changes in the fair value of derivatives that qualify as cash flow hedges is recorded in Accumulated Other Comprehensive Income ("AOCI"), and is subsequently reclassified into earnings in the period that the hedged forecasted

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transaction affects earnings. Amounts reported in AOCI related to derivatives will be reclassified to interest expense as interest payments are made on the Company’s variable-rate debt.

In December 2015, the Company entered into a three-year interest rate cap with $500.0 million notional value outstanding. This interest rate cap was effective beginning on February 29, 2016. The fair value of this interest rate contract included in other assets on the consolidated balance sheet as of September 30, 2018 was $1.0 million, and the Company recognized $0.6 million and $1.2 million of interest expense, respectively, in the Company’s consolidated statement of operations for the three and nine months ended September 30, 2018. The Company recognized a $1.9 million gain, net of a tax expense of $0.1 million, in AOCI for the nine months ended September 30, 2018. The Company estimates that a cumulative amount of $0.1 million will be reclassified from AOCI to interest expense (as an increase to interest expense) in the next twelve months.

In June 2018, the Company entered into a three-year interest rate cap with $800.0 million notional value outstanding. This interest rate cap was effective beginning on August 28, 2018. The fair value of this interest rate contract included in other assets on the consolidated balance sheet as of September 30, 2018 was $5.9 million, and the Company recognized $0.4 million and $0.5 million, respectively, of interest expense in the Company’s consolidated statement of operations for the three and nine months ended September 30, 2018. The Company recognized a $0.7 million gain, net of a tax expense of $0.2 million, in AOCI for the nine months ended September 30, 2018. The Company estimates that $1.7 million will be reclassified from AOCI to interest expense (as an increase to interest expense) in the next twelve months.

8. Goodwill and Other Intangible Assets

The following table summarizes the changes in the Company’s goodwill balances from December 31, 2017 to September 30, 2018:

	Web Presence			Email Marketing		Domain		Total
	(in thousands)
Goodwill balance at December 31, 2017	$	1,216,419		$	604,305	$	29,858	$	1,850,582
Foreign translation impact	(1,318		)	—		—		(1,318		)
Goodwill balance at September 30, 2018	$	1,215,101		$	604,305	$	29,858	$	1,849,264

In accordance with ASC 350, the Company reviews goodwill and other indefinite-lived intangible assets for indicators of impairment on an annual basis and between tests if an event occurs or circumstances change that would more likely than not reduce the fair value of goodwill below its carrying amount.

At December 31, 2017, other intangible assets consisted of the following:

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted Average Useful Life
	(dollars in thousands)
Developed technology	$	285,911	$	149,514	$	136,397	7 years
Subscriber relationships	659,732		431,938		227,794		7 years
Trade-names	134,054		73,019		61,035		8 years
Intellectual property	34,313		27,336		6,977		5 years
Domain names available for sale	30,458		7,221		23,237		Indefinite
Total December 31, 2017	$	1,144,468	$	689,028	$	455,440

During the nine months ended September 30, 2017 and 2018, there were no impairment charges of intangible assets.

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At September 30, 2018, other intangible assets consisted of the following:

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted Average Useful Life
	(dollars in thousands)
Developed technology	$	284,312	$	173,203	$	111,109	7 years
Subscriber relationships	659,376		472,625		186,751		7 years
Trade-names	134,046		81,740		52,306		8 years
Intellectual property	34,306		28,566		5,740		5 years
Domain names available for sale	30,855		9,091		21,764		Indefinite
Total September 30, 2018	$	1,142,895	$	765,225	$	377,670

The estimated useful lives of the individual categories of other intangible assets are based on the nature of the applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with finite lives is recognized over the period of time the assets are expected to contribute to future cash flows. The Company amortizes finite-lived intangible assets over the period in which the economic benefits are expected to be realized based upon their estimated projected cash flows.

The Company’s amortization expense is included in cost of revenue in the consolidated statement of operations and comprehensive loss in the aggregate amounts of $35.3 million and $26.2 million for the three months ended September 30, 2017 and 2018, respectively. The Company's amortization expense is included in cost of revenue in the aggregate amounts of $104.6 million and $77.9 million for the nine months ended September 30, 2017 and 2018, respectively.

9. Investments

As of December 31, 2017 and September 30, 2018, the Company’s carrying value of investments in privately-held companies was $15.3 million and $15.3 million, respectively.

In January 2012, the Company made an initial investment of $0.3 million to acquire a 25% interest in BlueZone Labs, LLC (“BlueZone”), a provider of “do-it-yourself” tools and managed search engine optimization services.

The Company also has an agreement with BlueZone to purchase products and services. During the three months ended September 30, 2017 and 2018, the Company purchased $0.4 million and $0.2 million, respectively, of products and services from BlueZone, which is included in cost of revenue in the Company’s consolidated statements of operations and comprehensive loss. During the nine months ended September 30, 2017 and 2018, the Company purchased $1.3 million and $0.9 million, respectively, of products and services from BlueZone, which is included in cost of revenue in the Company's consolidated statements of operations and comprehensive loss. As of December 31, 2017 and September 30, 2018, $0.1 million and $0.0 million, respectively, relating to the Company’s investment in BlueZone was included in accounts payable and accrued expense in the Company’s consolidated balance sheet. As of December 31, 2017 and September 30, 2018, $0.7 million and $0.1 million, respectively, relating to the Company’s investment in BlueZone was included in prepaid expenses and other current assets in the Company’s consolidated balance sheet. The investment is accounted for using the measurement alternative under ASU 2016-01, Financial Instruments - Overall, as fair value is not readily available.

In May 2014, the Company made a strategic investment of $15.0 million in Automattic, Inc. (“Automattic”), which provides content management systems associated with WordPress. The investment represents less than 5% of the outstanding shares of Automattic and better aligns the Company with an important partner. The investment is accounted for using the measurement alternative under ASU 2016-01 as fair value is not readily available.

Investments in which the Company’s interest is less than 20% and which are not classified as available-for-sale securities are carried at the lower of cost or net realizable value unless it is determined that the Company exercises significant influence over the investee company, in which case the equity method of accounting is used. For those investments in which the Company’s voting interest is between 20% and 50%, the equity method of accounting is used. Under this method, the investment balance, originally recorded at cost, is adjusted to recognize the Company’s share of net earnings or losses of the investee company, as they occur, limited to the extent of the Company’s investment in, advances to and commitments for the investee. These adjustments are reflected in equity (income) loss of unconsolidated entities, net of tax in the Company’s consolidated statements of operations and comprehensive loss. The amount of (income) loss recognized from these investments in all periods presented in the Company's consolidated statement of operations has not been material for any of those periods.From time to time, the Company may make new and follow-on investments and may receive distributions from investee companies. As of September 30, 2018, the Company was not obligated to fund any follow-on investments in these investee companies.

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As of September 30, 2018, the Company did not have an equity method investment in which the Company’s proportionate share of the investee’s net income or loss exceeded 10% of the Company’s consolidated assets or income from continuing operations.

10. Notes Payable

At December 31, 2017 and September 30, 2018, notes payable, net of original issuance discounts (sometimes referred to as "OID") and deferred financing costs, consisted of the following:

	At December 31, 2017		At September 30, 2018
	(in thousands)
2018 First Lien Term Loan	$	—	$	1,493,131
2017 First Lien Term Loan	1,563,197		—
Notes	329,048		330,911
Revolving credit facilities	—		—
Total notes payable	1,892,245		1,824,042
Current portion of notes payable	33,945		31,606
Notes payable - long term	$	1,858,300	$	1,792,436

2018 First Lien Term Loan Facility

In connection with the Company's June 20, 2018 refinancing of its then-outstanding term loan (the "2018 Refinancing"), the Company entered into its current first lien term loan facility (the "2018 Term Loan") with an original balance of $1,580.3 million and a maturity date of February 9, 2023. As of September 30, 2018, the 2018 Term Loan had an outstanding balance of:

		At September 30, 2018
	(in thousands)
2018 First Lien Term Loan		$	1,530,002
Unamortized deferred financing costs		(19,594		)
Unamortized original issue discount		(17,277		)
Net 2018 First Lien Term Loan		1,493,131
Current portion of 2018 First Lien Term Loan		31,606
2018 First Lien Term Loan - long term		$	1,461,525

The 2018 Term Loan was issued at par and automatically bears interest at an alternate base rate unless the Company gives notice to opt for the LIBOR-based interest rate. The LIBOR-based interest rate for the 2018 Term Loan is 3.75% per annum plus the greater of an adjusted LIBOR and 1.00%. The alternate base rate for the 2018 Term Loan is 2.75% per annum plus the greatest of the prime rate, the federal funds effective rate plus 0.50%, an adjusted LIBOR for a one-month interest period plus 1.00%, and 2.00%.

The 2018 Term Loan requires quarterly mandatory repayments of principal. During the nine months ended September 30, 2018, following the 2018 Refinancing, the Company made two mandatory repayments of $7.9 million each, one voluntary prepayment of $17.0 million and one voluntary prepayment of $17.5 million.

Interest is payable on maturity of the elected interest period for a term loan with a LIBOR-based interest rate, which interest period can be one, two, three or six months. Interest is payable at the end of each fiscal quarter for a term loan with an alternate base rate.

2017 First Lien Term Loan Facility

The Company's prior first lien term loan facility (the "2017 Term Loan") was entered into in connection with the Company's June 14, 2017 refinancing of its then-outstanding term loans (the "2017 Refinancing"). The 2017 Term Loan had an original balance of $1,697.3 million and a maturity date of February 9, 2023. As of December 31, 2017 and September 30,

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2018, the 2017 Term Loan had an outstanding balance of:

	At December 31, 2017			At September 30, 2018
	(in thousands)
2017 First Lien Term Loan	$	1,605,792		$	—
Unamortized deferred financing costs	(22,456		)	—
Unamortized original issue discount	(20,139		)	—
Net 2017 First Lien Term Loan	1,563,197			—
Current portion of 2017 First Lien Term Loan	33,945			—
2017 First Lien Term Loan - long term	$	1,529,252		$	—

The 2017 Term Loan was issued at a price of 99.75% of par and automatically bore interest at an alternate base rate unless the Company gave notice to opt for the LIBOR-based interest rate. The LIBOR-based interest rate for the 2017 Term Loan was 4.00% per annum plus the greater of an adjusted LIBOR and 1.00%. The alternate base rate for the 2017 Term Loan was 3.00% per annum plus the greatest of the prime rate, the federal funds effective rate plus 0.50%, an adjusted LIBOR for a one-month interest period plus 1.00%, and 2.00%.

The 2017 Term Loan required quarterly mandatory repayments of principal. During the nine months ended September 30, 2018, prior to the 2018 Refinancing, the Company made one mandatory repayment of $8.5 million and one voluntary repayment of $17.0 million.

Interest was payable on maturity of the elected interest period for a term loan with a LIBOR-based interest rate, which interest period could be one, two, three or six months. Interest was payable at the end of each fiscal quarter for a term loan with an alternate base rate.

As part of the 2018 Refinancing, the Company refinanced the then-outstanding 2017 Term Loan balance of $1,580.3 million.

Revolving Credit Facility

In connection with the Company's February 9, 2016 acquisition of Constant Contact and the related financing of that transaction (the "Constant Contact Financing"), the Company entered into a revolving credit facility (the “2016 Revolver”) that replaced the Company's prior revolving credit facility. The 2016 Revolver has an aggregate available amount of $165.0 million. As of December 31, 2017 and September 30, 2018, the Company did not have any balances outstanding under the 2016 Revolver and the full amount of the facility was unused and available.

In June 2018, the Company extended the maturity of a portion of the 2016 Revolver. The 2016 Revolver consists of a non-extended tranche of approximately $58.8 million and an extended tranche of approximately $106.2 million. The non-extended tranche has a maturity date of February 9, 2021. The extended tranche has a maturity date of June 20, 2023, with a "springing" maturity date of November 10, 2022 if the 2018 Term Loan has not been repaid in full or otherwise extended to September 19, 2023 or later prior to November 10, 2022.

The Company has the ability to draw down against the 2016 Revolver using a LIBOR-based interest rate or an alternate base rate. The LIBOR-based interest rate for a non-extended revolving loan is 4.0% per annum (subject to a leverage-based step-down) and for an extended revolving loan is 3.25% per annum (subject to a leverage-based step-down), in each case plus an adjusted LIBOR for a selected interest period. The alternate base rate for a non-extended revolving loan is 3.0% per annum (subject to a leverage-based step-down) and for an extended revolving loan is 2.25% per annum (subject to a leverage-based step-down), in each case plus the greatest of the prime rate, the federal funds rate plus 0.50% and an adjusted LIBOR or a one-month interest period plus 1.00%. There is also a non-refundable commitment fee, equal to 0.50% per annum (subject to a leverage-based step-down) of the daily unused principal amount of the 2016 Revolver, which is payable in arrears on the last day of each fiscal quarter. Interest is payable on maturity of the elected interest period for a revolver loan with a LIBOR-based interest rate, which interest period can be one, two, three or six months. Interest is payable at the end of each fiscal quarter for a revolver loan with an alternate base rate.

Senior Notes

In connection with the Constant Contact Financing, EIG Investors issued $350.0 million aggregate principal amount of senior notes (the "Senior Notes") with a maturity date of February 1, 2024. The Senior Notes were issued at a price of 98.065% of par and bear interest at the rate of 10.875% per annum. The Senior Notes have been fully and unconditionally guaranteed, on

26

a senior unsecured basis, by the Company and its subsidiaries that guarantee the 2018 Term Loan and the 2016 Revolver (including Constant Contact and certain of its subsidiaries). The Company has the right to redeem all or a part of the Senior Notes at any time for a premium which is based on the applicable redemption date. As of December 31, 2017 and September 30, 2018, the Senior Notes had an outstanding balance of:

	At December 31, 2017			At September 30, 2018
	(in thousands)
Senior Notes	$	350,000		$	350,000
Unamortized deferred financing costs	(15,280		)	(13,921		)
Unamortized original issuance discount	(5,672		)	(5,168		)
Net Senior Notes	329,048			330,911
Current portion of Senior Notes	—			—
Senior Notes - long term	$	329,048		$	330,911

Interest on the Senior Notes is payable twice a year, on August 1 and February 1.

On January 30, 2017, the Company completed a registered exchange offer for the Senior Notes, as required under the registration rights agreement it entered into with the initial purchasers of the Senior Notes. All of the $350.0 million aggregate principal amount of the Senior Notes was validly tendered for exchange as part of this exchange offer.

Maturity of Notes Payable

The maturity of the notes payable at September 30, 2018 is as follows:

Amounts maturing in:	(in thousands)
(Remainder of) 2018	$	7,902
2019	31,606
2020	31,606
2021	31,606
2022	31,606
Thereafter	1,745,676
Total	$	1,880,002

Interest

The Company recorded $35.8 million and $37.5 million in interest expense for the three months ended September 30, 2017 and 2018, respectively, and $121.0 million and $111.9 million for the nine months ended September 30, 2017 and 2018, respectively.

The following table provides a summary of interest rates and interest expense for the three and nine months ended September 30, 2017 and 2018:

27

	Three Months Ended September 30, 2017			Three Months Ended September 30, 2018			Nine Months Ended September 30, 2017			Nine Months Ended September 30, 2018
	(percentage per annum)
Interest rate—LIBOR	5.14%-5.32%			5.81%-6.07%			5.14%-6.68%			5.46%-6.32%
Interest rate—reference	*			*			*			*
Interest rate—Senior Notes	10.875		%	10.875		%	10.875		%	10.875		%
Non-refundable fee—unused facility	0.50		%	0.50		%	0.50		%	0.50		%
	(dollars in thousands)
Interest expense and service fees	$	32,551		$	34,469		$	105,371		$	101,575
Loss on extinguishment of debt	—			—			992			331
Deferred financing fees immediately expensed	—			—			5,487			1,228
Amortization of deferred financing fees	1,873			1,722			5,403			4,708
Amortization of original issue discounts	1,059			1,083			2,791			3,209
Amortization of net present value of deferred consideration	127			60			504			311
Other interest expense	238			193			474			561
Total interest expense	$	35,848		$	37,527		$	121,022		$	111,923

* The Company did not have debt bearing interest based on the alternate base rate for the three and nine months ended September 30, 2017 and 2018.

The Company concluded that the 2017 Refinancing was primarily a debt modification of the existing term loans in accordance with ASC 470-50, Debt: Modifications and Extinguishments, with extinguishment relating only to a few existing lenders that did not participate in the 2017 Refinancing. As a result, during the second quarter of 2017, the Company capitalized $4.2 million of additional OID and $0.9 million of deferred financing costs related to new lenders participating in the 2017 Term Loan. These capitalized costs were being amortized over the remaining life of the loan using the effective interest method. Additionally in the second quarter of 2017, the Company recorded a charge of $1.0 million, included in interest expense, to write off OID and deferred financing costs related to the refinanced debt for lenders not participating in the 2017 Term Loan. Lastly, the Company recorded a charge of $5.5 million during the second quarter of 2017, included in interest expense, for deferred financing costs incurred for the 2017 Term Loan that related to existing lenders that carried over from the refinanced debt.

The Company concluded that the 2018 Refinancing was primarily a debt modification of the existing term loan in accordance with ASC 470-50, Debt: Modifications and Extinguishments, with extinguishment relating only to one existing lender that did not participate in the 2018 Refinancing. As a result, during the second quarter of 2018, the Company capitalized $0.4 million of deferred financing costs related to new lenders participating in the 2018 Term Loan. These capitalized costs will be amortized over the remaining life of the loan using the effective interest method. Additionally, in the second quarter of 2018, the Company recorded a charge of $0.3 million, included in interest expense, to write off OID and deferred financing costs related to the refinanced debt for the lender not participating in the 2018 Term Loan. Lastly, the Company recorded a charge of $1.2 million during the second quarter of 2018, included in interest expense, for deferred financing costs incurred for the 2018 Term Loan that related to existing lenders that carried over from the refinanced debt.

Debt Covenants

The 2018 Term Loan and 2016 Revolver (together, the "Senior Credit Facilities") require that the Company complies with a financial covenant to maintain a maximum ratio of consolidated senior secured net indebtedness to an adjusted consolidated EBITDA measure.

The Senior Credit Facilities also contain covenants that limit the Company's ability to, among other things, incur additional debt or issue certain preferred shares; pay dividends on or make other distributions in respect of capital stock; make other restricted payments; make certain investments; sell or transfer certain assets; create liens on certain assets to secure debt; consolidate, merge, sell or otherwise dispose of all or substantially all of its assets; and enter into certain transactions with affiliates. These covenants are subject to a number of important limitations and exceptions.

Additionally, the Senior Credit Facilities require the Company to comply with certain negative covenants and specify certain events of default that could result in amounts becoming payable, in whole or in part, prior to their maturity dates.

With the exception of certain equity interests and other excluded assets under the terms of the Senior Credit Facilities, substantially all of the Company's assets are pledged as collateral for the obligations under the Senior Credit Facilities. The

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indenture with respect to the Senior Notes contains covenants that limit the Company's ability to, among other things, incur additional debt or issue certain preferred shares; pay dividends on or make other distributions in respect of capital stock; make other restricted payments; make certain investments; sell or transfer certain assets; create liens on certain assets to secure debt; consolidate, merge sell or otherwise dispose of all or substantially all of its assets; and enter into certain transactions with affiliates. Upon a change of control as defined in the indenture, the Company must offer to repurchase the Senior Notes at 101% of the aggregate principal amount thereof, plus accrued and unpaid interest, if any, up to, but not including, the repurchase date. These covenants are subject to a number of important limitations and exceptions.

The indenture also provides for events of default, which, if any of them occurs, may permit or, in certain circumstances, require the principal, premium, if any, interest and any other monetary obligations on all the then outstanding Senior Notes to be due and payable immediately.

The Company was in compliance with all covenants at September 30, 2018.

11. Stockholders’ Equity

Voting Rights

All holders of common stock are entitled to one vote per share.

Changes in Total Stockholders' Equity

The following table presents the changes in total stockholders’ equity during the nine months ended September 30, 2018:

	Total Stockholders’ Equity
	(in thousands)
Balance at December 31, 2017	$	83,005
Stock-based compensation	21,932
Reclassification of stock-compensation liability award	250
Stock option exercises	756
Foreign currency translation adjustment	(2,489		)
Unrealized gain on derivative	1,996
Adjustment to beginning retained earnings resulting from adoption of ASC 606, net of tax impact of $7.0 million	59,384
Net loss attributable to Endurance International Group Holdings, Inc.	(8,236		)
Balance at September 30, 2018	$	156,598

12. Stock-Based Compensation

2013 Stock Incentive Plan

The Amended and Restated 2013 Stock Incentive Plan (the “2013 Plan”) of the Company became effective upon the closing of its initial public offering ("IPO"). The 2013 Plan provides for the grant of options, stock appreciation rights, restricted stock, restricted stock units and other stock-based awards to employees, officers, directors, consultants and advisers of the Company. Under the 2013 Plan, the Company may issue up to 38,000,000 shares of the Company’s common stock. At September 30, 2018, there were 16,722,969 shares available for grant under the 2013 Plan.

2011 Stock Incentive Plan

As of February 9, 2016, the effective date of the acquisition of Constant Contact, the Company assumed and converted certain outstanding equity awards granted by Constant Contact under the Constant Contact 2011 Stock Incentive Plan (the “2011 Plan”) prior to the effective date of the acquisition (the “Assumed Awards”) into corresponding equity awards with respect to shares of the Company’s common stock. In addition, the Company assumed certain shares of Constant Contact common stock, par value $0.01 per share, available for issuance under the 2011 Plan (the “Available Shares”), which will be available for future issuance under the 2011 Plan in satisfaction of the vesting, exercise or other settlement of options and other equity awards that may be granted by the Company following the effective date of the acquisition of Constant Contact in reliance on the prior approval of the 2011 Plan by the stockholders of Constant Contact. The Assumed Awards were converted into 2,143,987 stock options and 2,202,846 restricted stock units with respect to the Company’s common stock and the Available Shares were converted into 10,000,000 shares of the Company’s common stock reserved for future awards under the 2011 Plan. At September 30, 2018, there were 8,390,174 shares available for grant under the 2011 Plan.

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All Plans

The following table presents total stock-based compensation expense recorded in the consolidated statement of operations and comprehensive loss for all awards granted under the Company’s 2013 Plan and 2011 Plan:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2018		2017		2018
	(in thousands)
Cost of revenue	$	1,553	$	828	$	4,720	$	3,223
Sales and marketing	2,263		1,478		7,027		4,009
Engineering and development	1,807		1,237		4,707		3,519
General and administrative	13,956		4,007		32,295		11,181
Total stock-based compensation expense	$	19,579	$	7,550	$	48,749	$	21,932

2013 Stock Incentive Plan

The following table provides a summary of the Company’s stock options as of September 30, 2018 and the stock option activity for all stock options granted under the 2013 Plan during the nine months ended September 30, 2018:

	Stock Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value(3) (in thousands)
Outstanding at December 31, 2017	8,575,150		$	12.30
Granted	611,010		$	7.50
Exercised	(19,049	)	$	8.09
Forfeited	(304,382	)	$	12.79
Expired	(1,516,912	)	$	13.56
Outstanding at September 30, 2018	7,345,817		$	11.63	5.1	$	1,600
Exercisable at September 30, 2018	5,475,357		$	12.39	3.9	$	283
Expected to vest after September 30, 2018 (1)	1,870,460		$	9.39	8.4	$	1,317
Exercisable as of September 30, 2018 and expected to vest (2)	7,345,817		$	11.63	5.1	$	1,600

⁽¹⁾  This represents the number of unvested options outstanding as of September 30, 2018 that are expected to vest in the future.

⁽²⁾  This represents the number of vested options as of September 30, 2018 plus the number of unvested options outstanding as of September 30, 2018 that are expected to vest in the future.

⁽³⁾  The aggregate intrinsic value was calculated based on the positive difference, if any, between the estimated fair value of the Company’s common stock on September 30, 2018 of $8.80 per share, or the date of exercise, as appropriate, and the exercise price of the underlying options.

Restricted stock units granted under the 2013 Plan generally vest annually over a three-year period, unless otherwise determined by the Company’s board of directors. The following table provides a summary of the Company’s restricted stock unit activity for the 2013 Plan during the nine months ended September 30, 2018:

	Restricted Stock Units		Weighted Average Grant Date Fair Value
Non-vested at December 31, 2017	3,004,137		$	7.93
Granted	3,846,567		$	7.55
Vested	(1,185,704	)	$	9.08
Canceled	(394,763	)	$	7.78
Non-vested at September 30, 2018	5,270,237		$	7.67

Restricted stock awards granted under the 2013 Plan generally vest annually over a four-year period, unless otherwise determined by the Company’s board of directors. Performance-based restricted stock awards are earned based on the achievement of performance criteria established by the Company’s compensation committee and board of directors. The

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following table provides a summary of the Company’s restricted stock award activity for the 2013 Plan during the nine months ended September 30, 2018:

	Restricted Stock Awards		Weighted Average Grant Date Fair Value
Non-vested at December 31, 2017	3,432,946		$	13.79
Granted	—		$	—
Vested	(819,886	)	$	12.29
Canceled	(2,134,075	)	$	14.85
Non-vested at September 30, 2018	478,985		$	11.62

2015 Performance Based Award

During fiscal year 2015, the Company granted a performance-based restricted stock award to the Company’s chief executive officer ("CEO") at that time, Hari Ravichandran, which provided for the opportunity to earn up to 3,693,754 shares of the Company’s common stock (the “Award Shares”) over a three-year period beginning July 1, 2015 and ending on June 30, 2018 (the “Performance Period”). Award Shares could be earned based on the Company achieving pre-established threshold, target and maximum performance metrics.

In April 2017, the Company announced that its board of directors and Mr. Ravichandran adopted a CEO transition plan. As a result of this transition, Mr. Ravichandran's employment with the Company ended during the fourth quarter of fiscal year 2017. Upon the end of his employment, in accordance with the terms of the award, Mr. Ravichandran received the Award Shares earned in the quarters completed prior to the separation, plus the number of Award Shares that would have been earned in the quarter in which the separation occurred, which amounted to an aggregate of 1,661,439 shares. The unearned 2,032,315 shares were forfeited. All charges relating to this award were recognized prior to January 1, 2018.

2016 Performance Based Awards

On February 16, 2016, the compensation committee of the board of directors of the Company approved the grant of performance-based restricted stock awards to the Company’s chief financial officer (“CFO”), chief operating officer (“COO”) at that time and chief administrative officer (“CAO”) at that time. Based on the Company's achievement of Constant Contact revenue, adjusted EBITDA and cash flow metrics, each executive earned the maximum number of shares subject to his or her award. The CFO earned 223,214 shares of the Company’s stock, the COO earned 260,416 shares of the Company’s stock, and the CAO earned 148,810 shares of the Company’s stock. These earned shares vested on March 31, 2017. During the three months ended March 31, 2017, the Company recognized $1.2 million of stock-based compensation expense related to these performance-based awards, which was the last quarter stock-based compensation was recorded relating to these awards.

New CEO Award

On August 11, 2017, the Company and Jeffrey H. Fox entered into an employment agreement (the “Employment Agreement”) appointing Mr. Fox as the Company’s president and chief executive officer effective upon his employment start date (the “Effective Date”) of August 22, 2017. The Employment Agreement provided for Mr. Fox to receive, on the Effective Date, an equity award under the 2013 Plan with a total value of $10,375,000 as of August 11, 2017, split between an award of 1,032,500 restricted stock units (the “RSU Award”) and an option to purchase 612,419 shares of the Company’s common stock (the “Stock Option Grant”).

Two Hundred Eighty-Two Thousand Five Hundred (282,500) of the restricted stock units subject to the RSU Award vested immediately on the Effective Date, but are subject to a requirement that Mr. Fox hold the shares underlying such restricted stock units until the earlier of the third anniversary of the Effective Date, his death or disability (as defined in the Employment Agreement) or a change in control of the Company (as defined in the Employment Agreement). The Company recorded a charge of $2.2 million for these immediately vested shares during the three months ended September 30, 2017. The remaining 750,000 restricted stock units subject to the RSU Award will vest over a three-year period, with 250,000 of such restricted stock units vesting annually on the anniversary of the Effective Date. The Stock Option Grant will vest over a three-year period, with one-third of the total number of shares subject to the Stock Option Grant vesting on the first anniversary of the Effective Date and the remainder vesting in equal monthly installments thereafter.

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2011 Stock Incentive Plan

The following table provides a summary of the Company’s stock options as of September 30, 2018 and the stock option activity for all stock options granted under the 2011 Plan during the nine months ended September 30, 2018:

	Stock Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (In Years)	Aggregate Intrinsic Value(3) (in thousands)
Outstanding at December 31, 2017	888,260		$	8.75
Granted	—		$	—
Exercised	(92,229	)	$	6.53
Forfeited	(10,256	)	$	10.47
Expired	(38,652	)	$	9.21
Outstanding at September 30, 2018	747,123		$	8.98	3.7	$	546
Exercisable at September 30, 2018	563,823		$	8.76	3.5	$	499
Expected to vest after September 30, 2018 (1)	183,300		$	9.65	4.2	$	47
Exercisable as of September 30, 2018 and expected to vest (2)	747,123		$	8.98	3.7	$	546

⁽¹⁾  This represents the number of unvested options outstanding as of September 30, 2018 that are expected to vest in the future.

⁽²⁾  This represents the number of vested options as of September 30, 2018 plus the number of unvested options outstanding as of September 30, 2018 that are expected to vest in the future.

⁽³⁾  The aggregate intrinsic value was calculated based on the positive difference, if any, between the estimated fair value of the Company’s common stock on September 30, 2018 of $8.80 per share, or the date of exercise, as appropriate, and the exercise price of the underlying options.

Unless otherwise determined by the Company’s board of directors, restricted stock units granted under the 2011 Plan generally vest annually over a three- or a four-year period. The following table provides a summary of the Company’s restricted stock unit activity for the 2011 Plan during the nine months ended September 30, 2018:

	Restricted Stock Units		Weighted Average Grant Date Fair Value
Non-vested at December 31, 2017	1,541,141		$	8.30
Granted	41,379		$	7.25
Vested	(516,600	)	$	8.38
Canceled	(92,030	)	$	8.53
Non-vested at September 30, 2018	973,890		$	8.20

Under both the 2011 and 2013 Plans combined, as of September 30, 2018 the Company had approximately $8.9 million of unrecognized stock-based compensation expense related to option awards that will be recognized over 1.6 years and approximately $43.7 million of unrecognized stock-based compensation expense related to restricted stock awards and restricted stock units that will be recognized over 2.1 years.

13. Accumulated Other Comprehensive Income

The following table presents the components of accumulated other comprehensive income (loss):

	Foreign Currency Translation Adjustments			Unrealized Gains (Losses) on Cash Flow Hedges			Total
	(in thousands)
Balance at December 31, 2017	$	696		$	(1,237	)	$	(541	)
Other comprehensive income (loss)	(2,489		)	1,996			(493		)
Balance at September 30, 2018	$	(1,793	)	$	759		$	(1,034	)

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14. Variable Interest Entity

The Company, through a subsidiary formed in China, entered into various agreements with Shanghai Xiao Lan Network Technology Co., Ltd (“Shanghai Xiao”) and its shareholders that allowed the Company to effectively control Shanghai Xiao, making it a variable interest entity (“VIE”). Shanghai Xiao has a technology license that allows it to provide local hosting services to customers located in China. During fiscal year 2018, the Company ceased operations of the VIE, and has begun the process to liquidate the entity.

From inception and through the period ended September 30, 2018, the financial position and results of operations of Shanghai Xiao are consolidated within, but are not material to, the Company’s consolidated financial position or results of operations.

15. Revenue

Adoption of ASC Topic 606, “Revenue from Contracts with Customers”

The Company recorded a net increase to opening retained earnings of $59.4 million as of January 1, 2018 due to the cumulative impact of adopting Topic 606, with the impact primarily related to customer acquisition costs. The impact to revenue and customer acquisition costs during the three months ended September 30, 2018 as a result of applying Topic 606 was a decrease of $0.6 million and an increase of $0.0 million, respectively. The impact to revenue and customer acquisition costs during the nine months ended September 30, 2018 was a decrease of $1.2 million and an increase of $0.5 million, respectively.

During the three and nine months ended September 30, 2018, the Company recognized $283.8 million and $862.9 million of revenue, respectively, the majority of which was derived from contracts with customers.

During the three and nine months ended September 30, 2018, the Company did not incur any impairment losses on any receivables or contract assets arising from the Company’s contracts with customers.

During the three and nine months ended September 30, 2018, the Company did not incur any credit losses on any receivables or contract assets, arising from the Company’s contracts with customers.

In accordance with ASC 606, the Company disaggregates revenue from contracts with customers based on the timing of revenue recognition. The Company determined that disaggregating revenue into these categories depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. As discussed in Note 21.Segment Information, the Company business consists of the web presence, domain and email marketing segments. The following table presents disaggregated revenues by category for the three and nine months ended September 30, 2018:

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	Three Months Ended September 30, 2018
	Web presence		Email marketing		Domain		Total
	(in thousands)
Subscriber revenue
Direct revenue from subscribers	$	138,869	$	100,816	$	12,911	$	252,596
Professional services	3,387		299		103		3,789
Reseller revenue	5,241		855		12,585		18,681
Total subscriber revenue	$	147,497	$	101,970	$	25,599	$	275,066
Non-subscriber revenue
MDF	$	2,199	$	141	$	252	$	2,592
Premium domains	3		—		5,067		5,070
Domain parking	172		—		870		1,042
Total non-subscriber revenue	$	2,374	$	141	$	6,189	$	8,704
Total revenue:	$	149,871	$	102,111	$	31,788	$	283,770
	Nine Months Ended September 30, 2018
	Web presence		Email marketing		Domain		Total
	(in thousands)
Subscriber revenue
Direct revenue from subscribers	$	424,321	$	302,583	$	39,185	$	766,089
Professional services	10,091		1,045		300		11,436
Reseller revenue	16,487		2,620		39,136		58,243
Total subscriber revenue	$	450,899	$	306,248	$	78,621	$	835,768
Non-subscriber revenue
MDF	$	6,012	$	464	$	473	$	6,949
Premium domains	70		—		15,823		15,893
Domain parking	622		—		3,664		4,286
Total non-subscriber revenue	$	6,704	$	464	$	19,960	$	27,128
Total revenue:	$	457,603	$	306,712	$	98,581	$	862,896

Subscriber revenue is primarily recognized over time, when the services are performed, except for third party products for which the Company acts as an agent. Revenue from third party products for which the Company acts as an agent is recognized at a point in time, when the revenue is earned.

Revenue, classified by the major geographic areas in which the Company’s customers are located, was as follows for the three and nine months ended September 30, 2018:

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	Three Months Ended September 30, 2018
	Web presence		Email marketing		Domain		Total
	(in thousands)
Domestic	$	100,065	$	93,992	$	12,509	$	206,566
International	49,806		8,119		19,279		77,204
Total	$	149,871	$	102,111	$	31,788	$	283,770
	Nine Months Ended September 30, 2018
	Web presence		Email marketing		Domain		Total
	(in thousands)
Domestic	$	306,724	$	281,717	$	38,525	$	626,966
International	150,879		24,995		60,056		235,930
Total	$	457,603	$	306,712	$	98,581	$	862,896

16. Redeemable Non-controlling Interest

On January 6, 2016, the Company increased its stake from a 49.0% to a 57.5% controlling interest in WZ (UK) Ltd. ("WZ UK"), an entity specialized in marketing certain of the Company's products. The minority shareholders could put their non-controlling interest, or NCI, to the Company within pre-specified put periods. As the NCI was subject to a put option that was outside the control of the Company, it was deemed a redeemable non-controlling interest and was not recorded in permanent equity, and was presented in mezzanine redeemable non-controlling interest on the consolidated balance sheet. The Company increased its ownership interest in WZ UK to 77.5% in May of 2016.

On July 13, 2016, the Company completed a restructuring with the minority shareholders that resulted in Pseudio Limited and Resume Labs Limited becoming wholly-owned subsidiaries of WZ UK, and acquired an increased ownership interest in the consolidated entity which brought the Company's ownership of WZ UK to 86.4%. The restructuring significantly reduced the amount of the potential redemption amount payable to the minority shareholders, and gave the Company the flexibility to reduce investments in this business. Based on these reduced investments, the estimated value of the non-controlling interest was below the expected redemption amount of $25.0 million, which resulted in $14.2 million of excess accretion that reduced income available to common shareholders for the period starting on the date of the restructuring through the redemption date of July 1, 2017. The Company recognized excess accretion of $0.0 million and $7.2 million for the three and nine months ended September 30, 2017, respectively, which is reflected in net loss attributable to accretion of non-controlling interest in the Company’s consolidated statements of operations and comprehensive loss. Prior to the third quarter of 2016, the Company did not have any accretion amounts in excess of fair value. On July 7, 2017, the Company redeemed the remaining redeemable non-controlling interest for $25.0 million.

17. Income Taxes

On December 22, 2017, the United States enacted tax reform legislation by passage of the commonly named Tax Cuts and Jobs Act, which significantly changes the existing U.S. tax laws, including a reduction in the corporate tax rate from 35% to 21% and a move from a worldwide tax system to a territorial system, as well as other changes. As a result of enactment of the legislation, the Company incurred an additional one-time income tax benefit on the re-measurement of certain deferred tax assets and liabilities in the amount of $16.9 million for the year ended December 31, 2017. The legislation also introduced substantial international tax reform that moves the U.S. toward a territorial system, in which income earned in other countries will generally not be subject to U.S. taxation. The accumulated foreign earnings of U.S. shareholders of certain foreign corporations will be subject to a one-time transition tax. Amounts held in cash or cash equivalents will be subject to a 15.5% tax, while amounts held in illiquid assets will be subject to an eight percent tax. Due to an accumulated deficit in the undistributed earnings of the Company's foreign subsidiaries, the one-time transition tax will not apply to the Company. Additionally, the legislation also contains provisions which would generally limit the Company's deduction for interest expense to 30% of adjusted taxable earnings before interest, taxes, depreciation and amortization ("Tax EBITDA"). The legislation includes provisions which provide a deduction related to intangible income that is owned in the U.S., an additional tax charge related to income from intangibles owned outside the U.S., and a new base-erosion and anti-abuse tax. Although the Company has substantially completed its work on the effects of the Tax Cuts and Jobs Act, it continues to evaluate certain sections of the new law that may be pertinent to the Company's tax situation. The Company has also adopted an accounting policy, as provided by the FASB in their January 10, 2018 Board Meeting, to account for the tax effects of the Global Intangible Low Tax Income

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("GILTI") in the periods that the Company is subject to such tax. As a result of this accounting policy, the Company will not be recording the tax effect of the deferred tax assets and liabilities associated with the GILTI tax.

During fiscal year 2017, the Company recorded a deferred tax expense and maintained a deferred tax liability to account primarily for the different book and tax treatment of tax deductible goodwill. Prior to 2018, the Company could not utilize deferred tax assets against the portion of the deferred tax liability related to tax deductible goodwill, as that liability was considered to have an indefinite life. With the passage of the Tax Cuts and Jobs Act, NOL carry-forwards generated after 2017 and the carry-forward of disallowed interest expense are indefinite in life, and therefore are eligible to offset indefinite life deferred tax liabilities. The Company's deferred tax expense (benefit) during 2018 has been impacted by this change.

As described in Note 3, the Company has revised its deferred income tax provision for the first and second quarter of 2018 to reflect an increase in NOL carry-forwards resulting from the reorganization and liquidation of certain affiliated entities which resulted in the recognition of a worthless stock loss of approximately $78.0 million during fiscal year 2017. This revision did not impact the previously reported income tax provision for fiscal year 2017; however, due to the changes enacted in the Tax Cuts and Jobs Act, the manner in which net operating loss carry-forwards are handled did impact the Company's 2018 provision for deferred income taxes previously recorded for the three months ended March 31, 2018 and for the three and six months ended June 30, 2018. The Company revised its provision (benefit) for income taxes for the three months ended March 31, 2018 from an expense of $2.6 million to a benefit of $(1.9) million. The Company also revised its provision (benefit) for income taxes for the three and six months ended June 30, 2018 from an expense of $1.7 million to a benefit of $(0.9) million, and an expense of $4.3 million to a benefit of $(2.9) million, respectively. All of these changes are attributable to changes in deferred tax expense (benefit).

The Company regularly assesses its ability to realize its deferred tax assets. Assessing the realization of deferred tax assets requires significant management judgment. In determining whether its deferred tax assets are more likely than not realizable, the Company evaluated all available positive and negative evidence, and weighted the evidence based on its objectivity. Evidence the Company considered included:

• NOLs incurred from the Company’s inception to September 30, 2018;

• Expiration of various federal, state and foreign tax attributes;

• Reversals of existing temporary differences;

• Composition and cumulative amounts of existing temporary differences; and

• Forecasted profit before tax.

The Company updates the scheduling of the reversal of the consolidated U.S. deferred tax assets and liabilities each quarter, as the deferred tax liabilities have continued to decrease and the Company generated pre-tax losses. Based on the analysis of the above evidence, the Company recorded a reduction of $7.9 million to its valuation allowance during the three months ended September 30, 2018.

The Company recognizes, in its consolidated financial statements, the effect of a tax position when it is more likely than not, based on the technical merits, that the position will be sustained upon examination. During the quarter ended September 30, 2017, management concluded that the Company’s material tax positions require the recording of an ASC 740-10 reserve, with interest and penalties, for uncertain income tax positions as of September 30, 2017. The Company has unrecognized tax positions at December 31, 2017 and September 30, 2018 of $1.1 million and $2.9 million, respectively, that would affect its effective tax rate. The Company does not expect a significant change in the liability for unrecognized tax benefits in the next 12 months.

For the three months ended September 30, 2017 and 2018, the Company recognized a tax expense of $3.0 million and $11.7 million, respectively, in the consolidated statements of operations and comprehensive loss. The income tax expense for the three months ended September 30, 2018 was primarily attributable to a federal and state deferred tax expense of $12.9 million due primarily to the different book and tax treatment of goodwill, a federal and state current income tax expense of $0.1 million and a foreign deferred tax expense of $0.3 million, partially offset by a foreign current tax benefit of $1.6 million. The income tax expense for the three months ended September 30, 2017 was primarily attributable to a federal and state deferred tax expense of $1.9 million, federal and state current income taxes of $0.2 million, foreign current tax expense of $0.7 million, and a foreign deferred tax expense of $0.2 million.

For the nine months ended September 30, 2017 and 2018, the Company recognized a tax expense of $11.4 million and $8.8 million, respectively, in the consolidated statements of operations and comprehensive loss. The income tax expense for the nine months ended September 30, 2018 was primarily attributable to a federal and state deferred tax expense of $8.9 million , a federal and state current income tax expense of $0.5 million, a foreign deferred tax expense of $0.2 million, partially offset by a foreign current tax benefit of $0.8 million. The income tax expense for the nine months ended September 30, 2017 was primarily attributable to a federal and state deferred tax expense of $7.3 million, federal and state current income taxes of $2.6 million, a foreign current tax expense of $2.3 million, partially offset by a foreign deferred tax benefit of $0.8 million.

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As of December 31, 2017, the Company had NOL carry-forwards available to offset future U.S. federal taxable income of approximately $236.3 million and future state taxable income of approximately $168.3 million. These NOL carry-forwards expire on various dates through 2037.

As of December 31, 2017, the Company had NOL carry-forwards in foreign jurisdictions available to offset future foreign taxable income by approximately $26.7 million. The Company has loss carry-forwards that begin to expire in 2021 in in China totaling $0.7 million. The Company has loss carry-forwards that begin to expire in 2020 in the Netherlands totaling $12.6 million. The Company also has loss carry-forwards in the United Kingdom and Singapore of $13.2 million and $0.2 million, respectively, which have an indefinite carry-forward period. A recent U.K. tax law change provides that U.K. losses can only offset 50% of trading profits incurred after April 1, 2017.

In addition, the Company has $3.4 million of U.S. federal capital loss carry-forwards and $1.4 million in state capital loss carry-forwards, generally expiring through 2021. As of December 31, 2017, the Company had U.S. tax credit carry-forwards available to offset future U.S. federal and state taxes of approximately $17.6 million and $12.3 million, respectively. These credit carry-forwards expire on various dates through 2037.

Utilization of the NOL carry-forwards may be subject to an annual limitation due to the ownership change rules under Section 382 of the Internal Revenue Code (“Section 382 limitation”). Ownership changes can limit the amount of net operating loss and other tax attributes that a company can use each year to offset future taxable income and taxes payable. Although the Company has experienced a number of ownership changes over time, it currently does not have any Section 382 limitation on its ability to utilize NOL carry-forwards.

The Company files income tax returns in the United States for federal income taxes and in various state jurisdictions. The Company also files in several foreign jurisdictions. In the normal course of business, the Company is subject to examination by tax authorities throughout the world. Since the Company is in a loss carry-forward position, it is generally subject to U.S. federal and state income tax examinations by tax authorities for all years for which a loss carry-forward is utilized. One of the Company’s subsidiaries, Constant Contact, Inc., is under audit by the U.S. Internal Revenue Service and the New York City Department of Finance for periods ended December 31, 2015 and February 9, 2016. The Company is also currently under audit in India for fiscal years ended March 31, 2014, 2015 and 2016 and Israel for the fiscal years ended December 31, 2012, 2013, 2014 and 2015.

18. Severance and Other Exit Costs

The Company continues to evaluate its data center, sales and marketing, support and engineering operations and the general and administrative function in an effort to optimize its cost structure. As a result, the Company may incur charges for employee severance, exiting facilities and restructuring data center commitments and other related costs.

2018 Restructuring Plan

In January 2018, the Company announced plans to eliminate approximately 71 positions, later increased to approximately 95 positions, primarily in the Asia Pacific region and to a lesser extent in the U.S., in order to streamline operations and create operational efficiencies (the "2018 Restructuring Plan"). During the three and nine months ended September 30, 2018, the Company incurred severance costs of $0.1 million and $3.0 million, and paid $0.6 million and $2.4 million, respectively, and had a remaining accrued severance liability of $0.6 million as of September 30, 2018 in connection with the 2018 Restructuring Plan.

The Company expects to complete severance charges related to the 2018 Restructuring Plan during the year ending December 31, 2018.

2017 Restructuring Plan

In January 2017, the Company announced plans to close certain offices as part of a plan to consolidate certain web presence customer support operations, resulting in severance costs. These severance charges were associated with the elimination of approximately 660 positions, primarily in customer support. Additionally, the Company implemented additional restructuring plans to create operational efficiencies and synergies related to the Constant Contact acquisition, which resulted in additional severance charges for the elimination of approximately 50 positions. During the three and nine months ended September 30, 2018, in connection with these plans (together, the “2017 Restructuring Plan”), the Company recorded severance charges of $0.0 million and $0.0 million, respectively, and paid $0.5 million and $3.3 million, respectively. The Company had a remaining accrued severance liability of $0.4 million as of September 30, 2018.

In connection with the 2017 Restructuring Plan, the Company closed offices in Orem, Utah and relocated certain employees to its Tempe, Arizona office. During the three and nine months ended September 30, 2018, the Company recorded an expense of $0.0 million and reductions of $0.2 million, respectively, and paid $0.0 million and $0.1 million, respectively. The Company had a remaining accrued facility liability of $0.0 million as of September 30, 2018.

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The Company expects to complete severance charges related to the 2017 Restructuring Plan during the year ending December 31, 2018.

2016 Restructuring Plan

In connection with the Company’s acquisition of Constant Contact on February 9, 2016, the Company implemented a plan to create operational efficiencies and synergies resulting in severance costs and facility exit costs (the “2016 Restructuring Plan”).

The severance charges were associated with the elimination of approximately 265 positions across the business. The Company incurred all employee-related charges associated with the 2016 Restructuring Plan during the year ended December 31, 2016 and all severance payments were complete at December 31, 2017. There is no severance accrual remaining as of September 30, 2018.

The 2016 Restructuring Plan included the closure of offices in San Francisco, California, Delray Beach, Florida, New York, New York, Miami, Florida, the United Kingdom and Brazil, and the relocation of certain employees to the Company's Austin, Texas office. The Company also closed a portion of the Constant Contact offices in Waltham, Massachusetts. During the three and nine months ended September 30, 2018, the Company recorded charges of $0.1 million and $0.2 million, respectively. The Company paid $0.5 million and $1.5 million, respectively, of facility costs related to the 2016 Restructuring Plan during the three and nine months ended September 30, 2018. The Company had a remaining accrued facility liability of $4.3 million as of September 30, 2018.

The Company completed facility-related charges associated with the 2016 Restructuring Plan during the year ended December 31, 2016, and expects to complete facility exit cost payments related to this plan during the year ending December 31, 2022.

Activity of Combined Restructuring Plans

The following table provides a summary of the aggregate activity for the nine months ended September 30, 2018 related to the Company’s combined restructuring plans' severance accrual:

	Employee  Severance
	(in thousands)
	Total
Balance at December 31, 2017	$	3,668
Severance charges	2,978
Cash paid	(5,646		)
Balance at September 30, 2018	$	1,000

The following table provides a summary of the aggregate activity for the nine months ended September 30, 2018 related to the Company’s combined restructuring plans' facilities exit accrual:

	Facilities
	(in thousands)
	Total
Balance at December 31, 2017	$	6,005
Facility adjustments	43
Sublease income received	322
Cash paid	(2,080		)
Balance at September 30, 2018	$	4,290

The following table presents restructuring charges recorded in the consolidated statements of operations and comprehensive loss for the periods presented:

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	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2017		2018		2017		2018
	(in thousands)
Cost of revenue	$	449	$	37	$	3,892	$	1,443
Sales and marketing	1,011		17		3,260		133
Engineering and development	271		33		1,349		389
General and administrative	2,758		110		6,083		1,056
Total restructuring charges	$	4,489	$	197	$	14,584	$	3,021

19. Commitments and Contingencies

From time to time, the Company is involved in legal proceedings or subject to claims arising in the ordinary course of its business. The Company is not presently involved in any such legal proceeding or subject to any such claim that, in the opinion of its management, would have a material adverse effect on its business, operating results or financial condition. However, the results of such legal proceedings or claims cannot be predicted with certainty, and regardless of the outcome, can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources and other factors. Neither the ultimate outcome of the Machado and McGee shareholder litigation matters listed below nor an estimate of any probable losses or any reasonably possible losses (other than the reserves specifically discussed below) can be assessed at this time.

The Company received a subpoena dated December 10, 2015 from the Boston Regional Office of the SEC, requiring the production of certain documents, including, among other things, documents related to its financial reporting, including operating and non-GAAP metrics, refund, sales and marketing practices and transactions with related parties. On June 5, 2018, the Company announced that it had settled both this investigation and the Constant Contact investigation discussed below by consenting to the SEC's entry of a cease and desist order (the "Order"), without admitting or denying the SEC's findings set forth in the Order, and by paying a civil monetary penalty. The Company accrued the penalty in the fiscal quarter ended September 30, 2017 and paid the penalty in the fiscal quarter ended June 30, 2018.

On May 4, 2015, Christopher Machado, a purported holder of the Company’s common stock, filed a civil action in the United States District Court for the District of Massachusetts against the Company and its former chief executive officer and former chief financial officer, captioned Machado v. Endurance International Group Holdings, Inc., et al., Civil Action No. 1:15-cv-11775-GAO. The plaintiff filed an amended complaint on December 8, 2015, and a second amended complaint on March 18, 2016. The Company moved to dismiss the second amended complaint, but before the court ruled on the Company's motion, with the Company's assent, the plaintiff filed a third amended complaint on June 30, 2017. In the third amended complaint, plaintiffs Christopher Machado and Michael Rubin allege claims for violations of Section 10(b) and 20(a) of the Exchange Act, and Sections 11, 12(a)(2), and 15 of the Securities Act, on behalf of a purported class of purchasers of the Company’s securities between October 25, 2013 and December 16, 2015, including persons or entities who purchased or acquired the Company's shares pursuant or traceable to the registration statement and prospectus issued in connection with the Company's October 25, 2013 initial public offering. The plaintiffs challenge as false or misleading certain of the Company’s disclosures about the total number of subscribers, average revenue per subscriber, the number of customers paying over $500 per year for the Company’s products and services, and the average number of products sold per subscriber. The plaintiffs seek, on behalf of themselves and the purported class, compensatory damages, rescissory damages as to class members who purchased shares pursuant to the offering and the plaintiffs' costs and expenses of litigation. The Company moved to dismiss the third amended complaint on August 29, 2017. The plaintiffs' memorandum in opposition to the Company's motion to dismiss was filed on October 30, 2017, and the Company's reply memorandum was filed on December 14, 2017. On January 12, 2018, the parties filed a joint motion to stay all proceedings pending the outcome of a mediation between the parties scheduled for February 23, 2018. The court granted the stay on February 21, 2018. The parties did not resolve the matter at the mediation on February 23, 2018, but continued thereafter to productively discuss a potential resolution of this matter. The court extended the stay to allow the parties to continue their discussions. On May 17, 2018, the parties executed a term sheet memorializing their agreement in principal to settle the action. The parties then negotiated the terms and conditions of a stipulation and agreement of settlement and related papers, which provide for the release of all claims asserted against the Company and its former chief executive officer and former chief financial officer. On July 6, 2018, the plaintiffs filed an unopposed motion seeking preliminary approval of the proposed settlement, certification of the proposed settlement class for settlement purposes only, and approval of notice to the settlement class. The court has not yet ruled on this motion. The Company's contribution to the settlement pool under the proposed settlement would be approximately equal to the amount it reserved in connection with a possible settlement of this action. The aggregate amount of this reserve and the reserve for the Constant Contact McGee litigation discussed below was originally $8.5 million recorded during the three months ended March

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31, 2018, and subsequently adjusted to $8.3 million during the three months ended June 30, 2018 and to $7.3 million during the three months ended September 30, 2018. The Company cannot make any assurances as to whether or when the settlement will be approved by the court.

Constant Contact

On February 9, 2016, the Company acquired all of the outstanding shares of common stock of Constant Contact.

On December 10, 2015, Constant Contact received a subpoena from the Boston Regional Office of the SEC, requiring the production of documents pertaining to Constant Contact’s sales, marketing, and customer retention practices, as well as periodic public disclosure of financial and operating metrics. As discussed above, on June 5, 2018, the Company announced that it had settled both this investigation and the Endurance investigation discussed above by consenting to the SEC's entry of the Order, without admitting or denying the SEC's findings set forth in the Order, and by paying a civil monetary penalty. The Company accrued the penalty in its fiscal quarter ended September 30, 2017 and paid the penalty in the fiscal quarter ended June 30, 2018.

On August 7, 2015, a purported class action lawsuit, William McGee v. Constant Contact, Inc., et al, was filed in the United States District Court for the District of Massachusetts against Constant Contact and two of its former officers. An amended complaint, which named an additional former officer as a defendant, was filed December 19, 2016. The lawsuit asserts claims under Sections 10(b) and 20(a) of the Exchange Act, and is premised on allegedly false and/or misleading statements, and non-disclosure of material facts, regarding Constant Contact’s business, operations, prospects and performance during the proposed class period of October 23, 2014 to July 23, 2015. The parties mediated the claims on March 27, 2018, and as a result of that mediation reached an agreement in principle with the lead plaintiff to settle the action. The parties then negotiated the terms and conditions of a stipulation and agreement of settlement and related papers, which provide for the release of all claims asserted against Constant Contact and its former officers. On May 18, 2018, the plaintiffs filed an unopposed motion seeking preliminary approval of the proposed settlement, certification of the proposed settlement class for settlement purposes only, and approval of notice to the settlement class. The court has not yet ruled on this motion. The Company's contribution to the settlement pool under the proposed settlement would be approximately equal to the amount it reserved in connection with a possible settlement of this action. The aggregate amount of this reserve and the reserve for the Endurance Machado litigation discussed above was originally $8.5 million recorded during the three months ended March 31, 2018, and subsequently adjusted to $8.3 million during the three months ended June 30, 2018 and to $7.3 million during the three months ended September 30, 2018. The Company cannot make any assurances as to whether or when the settlement will be approved by the court.

20. Related Party Transactions

The Company has various agreements in place with related parties. Below are details of significant related party transactions that occurred during the three and nine months ended September 30, 2017 and 2018.

Tregaron:

The Company has contracts with Tregaron India Holdings, LLC and its affiliates, including Diya Systems (Mangalore) Private Limited, Glowtouch Technologies Pvt. Ltd. and Touchweb Designs, LLC (collectively, “Tregaron”), for outsourced services, including email- and chat-based customer and technical support, network monitoring, engineering and development support and web design and web building services, and an office space lease. These entities are owned directly or indirectly by family members of the Company’s former chief executive officer, who is also a holder of more than 5.0% of the Company's capital stock.

The following table presents the amounts of related party transactions recorded in the consolidated statements of operations and comprehensive loss for the periods presented relating to services provided by Tregaron and its affiliates under these agreements:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2018		2017		2018
	(in thousands)
Cost of revenue	$	3,100	$	3,330	$	9,100	$	10,555
Sales and marketing	500		160		1,000		605
Engineering and development	200		290		850		960
General and administrative	50		20		150		65
Total related party transaction expense, net	$	3,850	$	3,800	$	11,100	$	12,185

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As of December 31, 2017, approximately $1.5 million was included in accounts payable and accrued expense relating to services provided by Tregaron. As of September 30, 2018, approximately $2.2 million was included in accounts payable and accrued expense relating to services provided by Tregaron.

Innovative Business Services, LLC:

The Company also has agreements with Innovative Business Services, LLC (“IBS”), which provides multi-layered third-party security and website performance applications that are sold by the Company. During the three months ended September 30, 2018, a director of the Company and the Company’s former chief executive officer, who is a holder of more than 5.0% of the Company's capital stock, continued to hold a material financial interest in IBS.

During the quarter ended March 31, 2017, the Company’s principal agreement with this entity was amended to permit the Company to purchase a specific IBS website performance product at no charge, and in exchange, to increase the revenue share to IBS on certain website performance products. The Company records revenue on the sale of IBS products on a net basis, since the Company views IBS as the primary obligor to deliver these services. As a result, the revenue share paid by the Company to IBS is recorded as contra-revenue. Further, IBS pays the Company a fee on sales made by IBS directly to customers of the Company. The Company records these fees as revenue.

The following table presents the amounts of related party transactions recorded in the consolidated statements of operations and comprehensive loss for the periods presented relating to services provided by IBS and its affiliates under these agreements:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2018			2017			2018
	(in thousands)
Revenue	$	(1,050	)	$	(1,430	)	$	(2,150	)	$	(4,075	)
Revenue (contra)	1,850			1,800			4,050			6,140
Total related party transaction impact to revenue	$	800		$	370		$	1,900		$	2,065
Cost of revenue	150			170			350			490
Total related party transaction expense, net	$	950		$	540		$	2,250		$	2,555

As of December 31, 2017 and September 30, 2018, approximately $0.2 million and $0.1 million, respectively, was included in prepaid expenses and other current assets relating to the Company’s agreements with IBS.

As of December 31, 2017 and September 30, 2018, approximately $1.3 million and $1.2 million, respectively was included in accounts payable and accrued expense relating to the Company’s agreements with IBS.

As of December 31, 2017 and September 30, 2018, approximately $0.7 million and $1.0 million, respectively, was included in accounts receivable relating to the Company’s agreements with IBS.

Goldman, Sachs & Co.:

The Company entered into a three-year interest rate cap on December 9, 2015 with a subsidiary of Goldman, Sachs & Co. ("Goldman"). The Company paid $3.0 million to the Goldman subsidiary as a premium for the interest rate cap during the year ended December 31, 2016. No further premiums are payable under this interest rate cap. Goldman is a significant stockholder of the Company. Refer to Note 6:Fair Value Measurements, for further details.

Goldman Sachs Lending Partners LLC, a subsidiary of Goldman, was one of the joint bookrunners and joint lead arrangers for the 2017 Refinancing and the 2018 Refinancing. In that capacity, Goldman Sachs Lending Partners LLC received an arrangement fee of $0.5 million and $0.3 million, respectively, and was reimbursed for an immaterial amount of expenses.

21.Segment Information

Operating segments are defined as components of an enterprise that engage in business activities for which discrete financial information is available and regularly reviewed by the CODM.

The Company experienced significant changes in its management structure during fiscal year 2017, including a change in its chief executive officer, who is the Company's CODM. The Company's leadership structure has been revised to centralize management of certain domain-focused brands in order to improve overall performance. As a result of these management changes, management has revised internal financial reporting structures, and broken the former web presence segment into two reportable segments, web presence and domains. The Company's third reportable segment, email marketing, remains unchanged.

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The products and services included in each of the three reportable segments are as follows:

Web Presence. The web presence segment consists primarily of the Company's web hosting brands, such as Bluehost and HostGator, and related products such as domain names, website security, website design tools and services, and e-commerce products.

Domain. The domain segment consists of domain-focused brands such as Domain.com, ResellerClub and LogicBoxes as well as certain web hosting brands that are under common management with domain-focused brands. This segment sells domain names and domain management services to resellers and end users, as well as premium domain names, and also generates advertising revenue from domain name parking. It also resells domain names and domain management services to the web presence segment.

Email marketing. The email marketing segment consists of Constant Contact email marketing tools and related products and the Company's SinglePlatform digital storefront solution.

The Company measures profitability of these segments based on revenue, gross profit, and adjusted EBITDA. The accounting policies of each segment are the same as those described in the summary of significant accounting policies; please refer to Note 2: Summary of Significant Accounting Policies, for further details. The following tables contain financial information for each reportable segment for the three and nine months ended September 30, 2017 and 2018:

	Three Months Ended September 30, 2017
	Web presence			Email marketing		Domain			Total
	(in thousands)
	(as revised)
Revenue(1)	$	159,530		$	101,526	$	34,166		$	295,222
Gross profit	$	77,032		$	65,286	$	(5,961	)	$	136,357
Net (loss) income	$	(20,403	)	$	2,202	$	(22,063	)	$	(40,264	)
Interest expense, net(2)	14,686			20,514		445			35,645
Income tax expense (benefit)	798			1,323		861			2,982
Depreciation	9,399			3,233		939			13,571
Amortization of other intangible assets	14,884			18,770		1,693			35,347
Stock-based compensation	15,510			1,668		2,402			19,580
Restructuring expenses	3,468			682		339			4,489
(Gain) loss of unconsolidated entities	(33		)	—		—			(33		)
Impairment of other long-lived assets	600			—		13,848			14,448
SEC investigations reserve	4,323			2,751		926			8,000
Adjusted EBITDA	$	43,232		$	51,143	$	(610	)	$	93,765
	Three Months Ended September 30, 2018
	Web presence			Email marketing		Domain			Total
	(in thousands)
Revenue(1)	$	149,871		$	102,111	$	31,788		$	283,770
Gross profit	$	75,074		$	71,356	$	8,395		$	154,825
Net (loss) income	$	(7,565	)	$	6,596	$	(5,366	)	$	(6,335	)
Interest expense, net(2)	18,132			17,128		1,978			37,238
Income tax expense (benefit)	6,136			4,179		1,400			11,715
Depreciation	8,401			2,538		950			11,889
Amortization of other intangible assets	11,941			13,384		852			26,177
Stock-based compensation	1,569			4,472		1,509			7,550

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Restructuring expenses	54			141			2			197
Shareholder litigation reserve	(768		)	—			(167		)	(935		)
Adjusted EBITDA	$	37,900		$	48,438		$	1,158		$	87,496
	Nine Months Ended September 30, 2017
	Web presence			Email marketing			Domain			Total
	(in thousands)
	(as revised)
Revenue(1)	$	483,661		$	298,401		$	100,555		$	882,617
Gross profit	$	229,186		$	188,181		$	11,053		$	428,420
Net (loss) income	$	(67,226	)	$	(8,026	)	$	(32,005	)	$	(107,257	)
Interest expense, net(2)	50,877			68,212			1,427			120,516
Income tax expense (benefit)	12,645			(4,821		)	3,560			11,384
Depreciation	27,401			10,632			2,700			40,733
Amortization of other intangible assets	44,431			55,697			4,426			104,554
Stock-based compensation	38,023			5,392			5,334			48,749
Restructuring expenses	8,944			4,743			897			14,584
Transaction expenses and charges	—			773			—			773
(Gain) loss of unconsolidated entities	(72		)	—			—			(72		)
Impairment of other long-lived assets	600			—			13,848			14,448
SEC investigations reserve	4,323			2,751			926			8,000
Shareholder litigation reserve	—			—			—			—
Adjusted EBITDA	$	119,946		$	135,353		$	1,113		$	256,412
	Nine Months Ended September 30, 2018
	Web presence			Email marketing			Domain			Total
	(in thousands)
Revenue(1)	$	457,603		$	306,712		$	98,581		$	862,896
Gross profit	$	225,149		$	214,909		$	29,241		$	469,299
Net (loss) income	$	(20,549	)	$	22,350		$	(10,037	)	$	(8,236	)
Interest expense, net(2)	53,503			50,866			6,834			111,203
Income tax expense (benefit)	960			8,009			(143		)	8,826
Depreciation	24,769			9,090			2,894			36,753
Amortization of other intangible assets	35,812			39,716			2,362			77,890
Stock-based compensation	12,066			7,168			2,698			21,932
Restructuring expenses	1,654			723			644			3,021
(Gain) loss of unconsolidated entities	2			—			—			2
Shareholder litigation reserve	4,780			1,500			1,045			7,325
Adjusted EBITDA	$	112,997		$	139,422		$	6,297		$	258,716

⁽¹⁾  Revenue excludes intercompany transactions relating to domain sales and domain services from the domain segment to the web presence segment of $2.5 million and $8.1 million, respectively, for the three and nine months ended September 30, 2017, and $2.5 million and $7.6 million, respectively, for the three and nine months ended September 30, 2018.

⁽²⁾  Interest expense includes impact of amortization of deferred financing costs, original issuance discounts and interest income.

The CODM does not use asset information to allocate resources or make operating decisions.

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The Company has revised amounts reported for gross profit, net loss and adjusted EBITDA for the web presence and the domain segments in the segment disclosures, which impacted fiscal years 2016 and 2017. The amounts reported for the email marketing segment were not impacted. The revisions arose because of an error in the classification of certain domain registration expenses. Domain segment gross profit, net income (loss) and adjusted EBITDA were overstated by $3.0 million for fiscal year 2016, and by $6.9 million for fiscal year 2017, and web presence segment gross profit, net income (loss) and adjusted EBITDA were understated by equal amounts. Consolidated results were not impacted by this misstatement. The following table reflects the differences between the amounts as reported and the amounts as revised for gross profit, net loss and adjusted EBITDA for the web presence and domain segments for the three and nine months ended September 30, 2017:

	Three Months Ended September 30, 2017
	Web presence						Domain
	(in thousands)
	(as reported)			(as revised)			(as reported)			(as revised)
Gross profit	$	75,097		$	77,032		$	(4,026	)	$	(5,961	)
Net loss	$	(22,416	)	$	(20,403	)	$	(20,050	)	$	(22,063	)
Adjusted EBITDA	$	41,297		$	43,232		$	1,325		$	(610	)
	Nine Months Ended September 30, 2017
	Web presence						Domain
	(in thousands)
	(as reported)			(as revised)			(as reported)			(as revised)
Gross profit	$	224,300		$	229,186		$	15,939		$	11,053
Net loss	$	(73,346	)	$	(67,226	)	$	(25,885	)	$	(32,005	)
Adjusted EBITDA	$	115,060		$	119,946		$	5,999		$	1,113

22. Subsequent Events

The Company evaluated all subsequent events occurring through November 2, 2018 to determine if any such events should be reflected in these financial statements. There were no material recognized subsequent events recorded in the September 30, 2018 financial statements.

23. Supplemental Guarantor Financial Information

In February 2016, EIG Investors Corp., a wholly-owned subsidiary of the Company (the “Issuer”), issued $350.0 million aggregate principal amount of its 10.875% Senior Notes due 2024 (refer to Note10: Notes Payable in the consolidated financial statements), which it exchanged for new 10.875% Senior Notes due 2024 pursuant to a registration statement on Form S-4. The registered exchange offer for the Senior Notes was completed on January 30, 2017. The Senior Notes are fully and unconditionally guaranteed, jointly and severally, on a senior unsecured basis by the Company, and the following wholly-owned subsidiaries: The Endurance International Group, Inc., Bluehost Inc., FastDomain Inc., Domain Name Holding Company, Inc., Endurance International Group – West, Inc., HostGator.com LLC, A Small Orange, LLC, Constant Contact, Inc., and SinglePlatform, LLC, (collectively, the “Subsidiary Guarantors”), subject to certain customary guarantor release conditions. The Company’s other domestic subsidiaries and its foreign subsidiaries (collectively, the “Non-Guarantor Subsidiaries”) have not guaranteed the Senior Notes.

The Company sold two immaterial guarantors, CardStar, Inc. and CardStar Publishing, LLC (collectively, "CardStar"), during the quarter ended December 31, 2016. CardStar was released and discharged from the guarantee as a result of the sale and no longer guarantees the debt of the Company as of December 1, 2016. Proceeds from the sale of CardStar were approximately $0.1 million.

The following tables present supplemental condensed consolidating balance sheet information of the Company (“Parent”), the Issuer, the Subsidiary Guarantors and the Non-Guarantor Subsidiaries as of December 31, 2017 and September 30, 2018, supplemental condensed consolidating results of operations for the three and nine months ended September 30, 2017 and 2018, and cash flow information for the nine months ended September 30, 2017 and 2018:

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Condensed Consolidating Balance Sheets

December 31, 2017

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Assets:
Current assets:
Cash and cash equivalents	$	92		$	2		$	54,473		$	11,926		$	—		$	66,493
Restricted cash	—			—			2,472			153			—			2,625
Accounts receivable	—			—			12,386			3,559			—			15,945
Prepaid domain name registry fees	—			—			28,291			25,514			—			53,805
Prepaid expenses & other current assets	(12		)	86			20,062			9,191			—			29,327
Total current assets	80			88			117,684			50,343			—			168,195
Intercompany receivables, net	33,637			606,834			(498,213		)	(142,258		)	—			—
Property and equipment, net	—			—			81,693			13,759			—			95,452
Goodwill	—			—			1,673,851			176,731			—			1,850,582
Other intangible assets, net	—			—			450,778			4,662			—			455,440
Investment in subsidiaries	49,288			1,355,013			37,200			—			(1,441,501		)	—
Other assets	—			3,639			21,373			6,405			—			31,417
Total assets	$	83,005		$	1,965,574		$	1,884,366		$	109,642		$	(1,441,501	)	$	2,601,086
Liabilities and stockholders' equity:
Current liabilities:
Accounts payable	$	—		$	—		$	9,532		$	1,526		$	—		$	11,058
Accrued expenses and other current liabilities	—			24,509			75,819			8,151			—			108,479
Deferred revenue	—			—			309,395			52,545			—			361,940
Current portion of notes payable	—			33,945			—			—			—			33,945
Current portion of capital lease obligations	—			—			7,630			—			—			7,630
Deferred consideration, short-term	—			—			4,365			—			—			4,365
Total current liabilities	—			58,454			406,741			62,222			—			527,417
Deferred revenue, long-term	—			—			81,199			9,773			—			90,972
Notes payable	—			1,858,300			—			—			—			1,858,300
Capital lease obligations	—			—			7,719			—			—			7,719
Deferred consideration	—			—			3,551			—			—			3,551
Other long-term liabilities	—			(468		)	30,143			447			—			30,122
Total liabilities	—			1,916,286			529,353			72,442			—			2,518,081
Equity	83,005			49,288			1,355,013			37,200			(1,441,501		)	83,005
Total liabilities and stockholders' equity	$	83,005		$	1,965,574		$	1,884,366		$	109,642		$	(1,441,501	)	$	2,601,086

45

Condensed Consolidating Balance Sheets

September 30, 2018

(in thousands)

	Parent		Issuer		Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Assets:
Current assets:
Cash and cash equivalents	$	207	$	2	$	59,890		$	29,575		$	—		$	89,674
Restricted cash	—		—		1,731			101			—			1,832
Accounts receivable	—		—		11,906			2,199			—			14,105
Prepaid domain name registry fees	—		—		32,729			24,385			—			57,114
Prepaid commissions	—		—		41,085			659			—			41,744
Prepaid expenses & other current assets	—		174		18,361			8,566			—			27,101
Total current assets	207		176		165,702			65,485			—			231,570
Intercompany receivables, net	34,278		441,001		(354,298		)	(120,981		)	—			—
Property and equipment, net	—		—		66,772			12,543			—			79,315
Goodwill	—		—		1,673,851			175,413			—			1,849,264
Other intangible assets, net	—		—		376,441			1,229			—			377,670
Investment in subsidiaries	122,114		1,510,592		74,478			—			(1,707,184		)	—
Prepaid commissions, net of current portion	—		—		41,346			735			—			42,081
Other assets	—		9,742		22,351			6,410			—			38,503
Total assets	$	156,599	$	1,961,511	$	2,066,643		$	140,834		$	(1,707,184	)	$	2,618,403
Liabilities and stockholders' equity:
Current liabilities:
Accounts payable	$	—	$	—	$	10,239		$	573		$	—		$	10,812
Accrued expenses and other current liabilities	—		15,197		69,493			4,376			—			89,066
Deferred revenue	—		—		330,178			50,386			—			380,564
Current portion of notes payable	—		31,606		—			—			—			31,606
Current portion of capital lease obligations	—		—		7,595			—			—			7,595
Deferred consideration, short-term	—		—		2,386			—			—			2,386
Total current liabilities	—		46,803		419,891			55,335			—			522,029
Deferred revenue, long-term	—		—		86,133			10,286			—			96,419
Notes payable	—		1,792,436		—			—			—			1,792,436
Capital lease obligations	—		—		2,067			—			—			2,067
Deferred consideration	—		—		1,342			—			—			1,342
Other long-term liabilities	—		158		46,618			736			—			47,512
Total liabilities	—		1,839,397		556,051			66,357			—			2,461,805
Equity	156,599		122,114		1,510,592			74,477			(1,707,184		)	156,598
Total liabilities and stockholders' equity	$	156,599	$	1,961,511	$	2,066,643		$	140,834		$	(1,707,184	)	$	2,618,403

46

Condensed Consolidating Statements of Operations and Comprehensive Income (Loss)

Three Months Ended September 30, 2017

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenue	$	—		$	—		$	266,985		$	30,019		$	(1,782	)	$	295,222
Cost of revenue	—			—			139,044			21,155			(1,334		)	158,865
Gross profit	—			—			127,941			8,864			(448		)	136,357
Operating expense:
Sales and marketing	—			—			61,376			4,900			—			66,276
Engineering and development	—			—			17,412			2,470			—			19,882
General and administrative	—			56			50,353			1,465			(605		)	51,269
Total operating expense	—			56			129,141			8,835			(605		)	137,427
(Loss) income from operations	—			(56		)	(1,200		)	29			157			(1,070		)
Interest expense and other income, net	—			35,661			756			(172		)	—			36,245
(Loss) income before income taxes and equity earnings of unconsolidated entities	—			(35,717		)	(1,956		)	201			157			(37,315		)
Income tax (benefit) expense	—			(13,201		)	15,494			689			—			2,982
(Loss) income before equity earnings of unconsolidated entities	—			(22,516		)	(17,450		)	(488		)	157			(40,297		)
Equity loss (income) of unconsolidated entities, net of tax	40,422			17,906			456			—			(58,817		)	(33		)
Net (loss) income	$	(40,422	)	$	(40,422	)	$	(17,906	)	$	(488	)	$	58,974		$	(40,264	)
Net (loss) income attributable to Endurance International Group Holdings, Inc.	$	(40,422	)	$	(40,422	)	$	(17,906	)	$	(488	)	$	58,974		$	(40,264	)
Comprehensive income (loss):
Foreign currency translation adjustments	—			—			—			1,070			—			1,070
Unrealized gain on cash flow hedge, net of taxes	—			83			—			—			—			83
Total comprehensive (loss) income	$	(40,422	)	$	(40,339	)	$	(17,906	)	$	582		$	58,974		$	(39,111	)

47

Condensed Consolidating Statements of Operations and Comprehensive Income (Loss)

Nine Months Ended September 30, 2017

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenue	$	—		$	—		$	788,806		$	98,321		$	(4,510	)	$	882,617
Cost of revenue	—			—			392,447			65,392			(3,642		)	454,197
Gross profit	—			—			396,359			32,929			(868		)	428,420
Operating expense:
Sales and marketing	—			—			195,392			15,765			(3		)	211,154
Engineering and development	—			—			51,053			9,340			—			60,393
General and administrative	—			166			123,736			7,632			(605		)	130,929
Transaction costs	—			—			773			—			—			773
Total operating expense	—			166			370,954			32,737			(608		)	403,249
(Loss) income from operations	—			(166		)	25,405			192			(260		)	25,171
Interest expense and other income, net	—			120,313			1,150			(347		)	—			121,116
(Loss) income before income taxes and equity earnings of unconsolidated entities	—			(120,479		)	24,255			539			(260		)	(95,945		)
Income tax (benefit) expense	—			(44,512		)	54,744			1,152			—			11,384
(Loss) income before equity earnings of unconsolidated entities	—			(75,967		)	(30,489		)	(613		)	(260		)	(107,329		)
Equity loss (income) of unconsolidated entities, net of tax	106,999			31,033			543			—			(138,647		)	(72		)
Net (loss) income	$	(106,999	)	$	(107,000	)	$	(31,032	)	$	(613	)	$	138,387		$	(107,257	)
Net loss attributable to non-controlling interest	—			—			7,524			—			—			7,524
Net (loss) income attributable to Endurance International Group Holdings, Inc.	$	(106,999	)	$	(107,000	)	$	(38,556	)	$	(613	)	$	138,387		$	(114,781	)
Comprehensive income (loss):
Foreign currency translation adjustments	—			—			—			2,984			—			2,984
Unrealized gain on cash flow hedge, net of taxes	—			(309		)	—			—			—			(309		)
Total comprehensive (loss) income	$	(106,999	)	$	(107,309	)	$	(38,556	)	$	2,371		$	138,387		$	(112,106	)

48

Condensed Consolidating Statements of Operations and Comprehensive Income (Loss)

Three Months Ended September 30, 2018

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenue	$	—		$	—		$	258,388		$	26,730		$	(1,348	)	$	283,770
Cost of revenue	—			—			110,808			19,485			(1,348		)	128,945
Gross profit	—			—			147,580			7,245			—			154,825
Operating expense:
Sales and marketing	—			—			60,341			3,490			—			63,831
Engineering and development	—			—			20,524			2,159			—			22,683
General and administrative	(11		)	52			24,187			1,465			—			25,693
Total operating expense	(11		)	52			105,052			7,114			—			112,207
(Loss) income from operations	11			(52		)	42,528			131			—			42,618
Interest expense and other income, net	—			37,305			74			(141		)	—			37,238
(Loss) income before income taxes and equity earnings of unconsolidated entities	11			(37,357		)	42,454			272			—			5,380
Income tax (benefit) expense	—			(8,891		)	22,020			(1,414		)	—			11,715
(Loss) income before equity earnings of unconsolidated entities	11			(28,466		)	20,434			1,686			—			(6,335		)
Equity loss (income) of unconsolidated entities, net of tax	6,346			(22,120		)	(1,686		)	—			17,460			—
Net (loss) income	$	(6,335	)	$	(6,346	)	$	22,120		$	1,686		$	(17,460	)	$	(6,335	)
Net (loss) income attributable to Endurance International Group Holdings, Inc.	$	(6,335	)	$	(6,346	)	$	22,120		$	1,686		$	(17,460	)	$	(6,335	)
Comprehensive income (loss):
Foreign currency translation adjustments	—			—			—			(644		)	—			(644		)
Unrealized gain on cash flow hedge, net of taxes	—			812			—			—			—			812
Total comprehensive (loss) income	$	(6,335	)	$	(5,534	)	$	22,120		$	1,042		$	(17,460	)	$	(6,167	)

49

Condensed Consolidating Statements of Operations and Comprehensive Income (Loss)

Nine Months Ended September 30, 2018

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenue	$	—		$	—		$	783,611		$	83,995		$	(4,710	)	$	862,896
Cost of revenue	—			—			338,885			59,422			(4,710		)	393,597
Gross profit	—			—			444,726			24,573			—			469,299
Operating expense:
Sales and marketing	—			—			187,175			10,558			—			197,733
Engineering and development	—			—			58,850			5,709			—			64,559
General and administrative	(11		)	169			124,317			(29,263		)	—			95,212
Total operating expense	(11		)	169			370,342			(12,996		)	—			357,504
(Loss) income from operations	11			(169		)	74,384			37,569			—			111,795
Interest expense and other income, net	—			111,051			539			(387		)	—			111,203
(Loss) income before income taxes and equity earnings of unconsolidated entities	11			(111,220		)	73,845			37,956			—			592
Income tax (benefit) expense	—			(26,470		)	35,897			(601		)	—			8,826
(Loss) income before equity earnings of unconsolidated entities	11			(84,750		)	37,948			38,557			—			(8,234		)
Equity loss (income) of unconsolidated entities, net of tax	8,247			(76,503		)	(38,554		)	18			106,794			2
Net (loss) income	$	(8,236	)	$	(8,247	)	$	76,502		$	38,539		$	(106,794	)	$	(8,236	)
Net (loss) income attributable to Endurance International Group Holdings, Inc.	$	(8,236	)	$	(8,247	)	$	76,502		$	38,539		$	(106,794	)	$	(8,236	)
Comprehensive income (loss):
Foreign currency translation adjustments	—			—			—			(2,489		)	—			(2,489		)
Unrealized gain on cash flow hedge, net of taxes	—			1,996			—			—			—			1,996
Total comprehensive (loss) income	$	(8,236	)	$	(6,251	)	$	76,502		$	36,050		$	(106,794	)	$	(8,729	)

50

Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2017

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations		Consolidated
Net cash (used in) provided by operating activities	$	(32	)	$	(72,687	)	$	204,768		$	(3,183	)	$	—	$	128,866
Cash flows from investing activities:
Purchases of property and equipment	—			—			(28,140		)	(3,955		)	—		(32,095		)
Proceeds from sale of property and equipment	—			—			292			—			—		292
Proceeds from note receivable	—			—			—			—			—		—
Purchases of intangible assets	—			—			(1,932		)	(34		)	—		(1,966		)
Net cash used in investing activities	—			—			(29,780		)	(3,989		)	—		(33,769		)
Cash flows from financing activities:
Proceeds from issuance of notes payable and draws on revolver	—			1,693,007			—			—			—		1,693,007
Repayment of notes payable and revolver	—			(1,733,147		)	—			—			—		(1,733,147		)
Payment of financing costs	—			(6,304		)	—			—			—		(6,304		)
Payment of deferred consideration	—			—			(4,550		)	(858		)	—		(5,408		)
Payment of redeemable non-controlling interest liability	—			—			(25,000		)	—			—		(25,000		)
Principal payments on capital lease obligations	—			—			(5,679		)	—			—		(5,679		)
Proceeds from exercise of stock options	1,548			—			—			—			—		1,548
Intercompany loans and investments	(1,058		)	119,128			(124,060		)	5,990			—		—
Net cash (used in) provided by financing activities	490			72,684			(159,289		)	5,132			—		(80,983		)
Net effect of exchange rate on cash and cash equivalents and restricted cash	—			—			—			2,156			—		2,156
Net (decrease) increase in cash and cash equivalents and restricted cash	458			(3		)	15,699			116			—		16,270
Cash and cash equivalents and restricted cash:
Beginning of period	3			4			41,654			15,237			—		56,898
End of period	$	461		$	1		$	57,353		$	15,353		$	—	$	73,168

51

Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2018

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations		Consolidated
Net cash (used in) provided by operating activities	$	—		$	(88,464	)	$	180,852		$	41,205		$	—	$	133,593
Cash flows from investing activities:
Purchases of property and equipment	—			—			(22,159		)	(184		)	—		(22,343		)
Proceeds from sale of property and equipment	—			—			6			—			—		6
Net cash used in investing activities	—			—			(22,153		)	(184		)	—		(22,337		)
Cash flows from financing activities:
Proceeds from issuance of term loan and notes, net of original issue discounts	—			1,580,305			—			—			—		1,580,305
Repayment of term loans	—			(1,656,094		)	—			—			—		(1,656,094		)
Payment of financing costs	—			(1,580		)	—			—			—		(1,580		)
Payment of deferred consideration	—			—			(4,500		)	—			—		(4,500		)
Principal payments on capital lease obligations	—			—			(5,609		)	—			—		(5,609		)
Proceeds from exercise of stock options	756			—			—			—			—		756
Intercompany loans and investments	(641		)	165,833			(143,914		)	(21,278		)	—		—
Net cash provided by (used in) financing activities	115			88,464			(154,023		)	(21,278		)	—		(86,722		)
Net effect of exchange rate on cash and cash equivalents and restricted cash	—			—			—			(2,146		)	—		(2,146		)
Net increase (decrease) in cash and cash equivalents and restricted cash	115			—			4,676			17,597			—		22,388
Cash and cash equivalents and restricted cash:
Beginning of period	92			2			56,945			12,079			—		69,118
End of period	$	207		$	2		$	61,621		$	29,676		$	—	$	91,506

52

Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

You should read the following discussion of our financial condition and results of operations together with our consolidated financial statements and the related notes and other financial information included elsewhere in this Quarterly Report on Form 10-Q.

53

Forward-Looking Statements

This Quarterly Report on Form 10-Q contains forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those discussed in the forward-looking statements. The statements contained in this report that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. Forward-looking statements are often identified by the use of words such as, but not limited to, “anticipate,” “believe,” “can,” “contemplate,” “continue,” “could,” “estimate,” “expect,” “intend,” “likely,” “may,” “might,” “plan,” “potential,” “predict,” “project,” “seek,” “should,” “strategy,” “target,” “would,” and similar expressions or variations intended to identify forward-looking statements. These statements are based on the beliefs and assumptions of our management based on information currently available to management. Such forward-looking statements are subject to risks, uncertainties and other important factors that could cause actual results and the timing of certain events to differ materially from future results expressed or implied by such forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those identified below and those discussed in the section titled “Risk Factors” included under Part II, Item 1A below, among others. Furthermore, such forward-looking statements speak only as of the date of this report. Except as required by law, we undertake no obligation to update any forward-looking statements to reflect events or circumstances after the date of such statements.

Overview

We are a leading provider of cloud-based platform solutions designed to help small- and medium-sized businesses, or SMBs, succeed online. We serve approximately 4.852 million subscribers globally with a range of products and services that help SMBs get online, get found and grow their businesses.

All of our products and services fall into one of our three reportable segments, as follows:

Web Presence. Our web presence segment consists primarily of our web hosting brands, such as Bluehost and HostGator, and related products such as domain names, website security, website design tools and services, and e-commerce products.

Domain. Our domain segment consists of domain-focused brands such as Domain.com, ResellerClub and LogicBoxes as well as certain web hosting brands that are under common management with our domain-focused brands. This segment sells domain names and domain management services to resellers and end users, as well as premium domain names, and also generates advertising revenue from domain name parking. It also resells domain names and domain management services to our web presence segment.

Email Marketing. Our email marketing segment consists of Constant Contact email marketing tools and related products and our SinglePlatform digital storefront solution.

Year over year changes in revenue, net loss and net cash provided by operating activities for the three and nine months ended September 30, 2018 are summarized below (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2018			2017			2018
Revenue	$	295,222		$	283,770		$	882,617		$	862,896
Net loss	$	(40,264	)	$	(6,335	)	$	(107,257	)	$	(8,236	)
Net cash provided by operating activities	$	46,444		$	51,341		$	128,866		$	133,593

• Revenue decreased by 4% as compared to the three months ended September 30, 2017 primarily due to revenue declines in the web presence and domain segments. These declines were partially offset by a slight increase in email marketing segment revenue.

• Net loss decreased from $40.3 million for the three months ended September 30, 2017 to $6.3 million for the three months ended September 30, 2018, due primarily to decreases in impairment charges, lower stock-based compensation expense, lower amortization expense, lower charges for litigation related matters, lower restructuring charges, and lower cost of revenue. These decreases in net loss were partially offset by lower revenue and increased income tax expense.

• Net cash provided by operating activities during the three months ended September 30, 2018 increased by 11% as compared to net cash provided by operating activities during the three months ended September 30, 2017. The increase was primarily due to improved working capital, mainly due to timing of vendor payments and lower payments for restructuring. These improvements in working capital were partially offset by lower revenue and lower subscriber billings, which led to a lower increase in deferred revenue.

54

• Revenue decreased by 2% as compared to the nine months ended September 30, 2017 primarily due to revenue declines in the web presence segment and to a lesser extent, in the domain segment. This decline was partially offset by an increase in email marketing segment revenue.

• Net loss decreased from $107.3 million for the nine months ended September 30, 2017 to $8.2 million for the nine months ended September 30, 2018, due primarily to decreases in stock-based compensation expense, amortization expense, impairment charges, restructuring charges, net interest expense, depreciation expense and income tax expense, lower cost of revenue and lower operating expense, all of which were partially offset by lower revenue.

• Net cash provided by operating activities during the nine months ended September 30, 2018 increased by 4% as compared to net cash provided by operating activities during the nine months ended September 30, 2017. The increase was primarily due to improved working capital, mainly due to timing of vendor payments, lower payments for restructuring and reduced interest payments. These improvements in working capital were partially offset by lower revenue; lower subscriber billings, which led to a lower increase in deferred revenue; payments related to our SEC investigation settlement; and the purchase of an interest rate cap to manage interest rate risk on our term loan.

Our total subscriber base decreased during the quarter ended September 30, 2018. Attrition in our non-strategic brands accounted for a majority of subscriber losses during the quarter. These non-strategic brands are principally hosting brands, but also include our cloud backup brands and certain other products that we launched in the past several years but have either discontinued or no longer actively market, which we refer to as "gateway" products. Subscriber counts are decreasing in these brands, and we are managing them to optimize cash flow rather than to acquire new subscribers. These non-strategic brands have had a negative impact on our revenue growth and subscriber billings, and we expect this impact to continue. We also expect total subscribers to continue to decrease in the foreseeable future.

Our 2018 operating plan is focused on delivering increased value to customers of our key strategic brands, including Constant Contact, Bluehost, HostGator and Domain.com, and on simplifying our operations to allow our business to perform more effectively and efficiently. We have increased our investment in engineering and development in order to improve the customer experience and expand product offerings in our strategic brands. Year-over-year cost savings in data center and support operations during the three and nine months ended September 30, 2018 have helped offset the impact of these investments on net loss and adjusted EBITDA. We intend to continue executing against this operating plan during the remainder of 2018, and believe these investments will position us for growth in the future. In the near term, we expect the declines in subscribers described above, combined with investments in engineering and development and certain increases in capital expenditures, to negatively impact revenue, net income (loss), adjusted EBITDA and free cash flow.

During the first quarter of 2018, we revised the amounts we previously reported for gross profit, net income (loss) and adjusted EBITDA for our web presence and domain segments for fiscal years 2016 and 2017. We made these revisions because of an error in the classification of certain domain registration expenses. Domain segment gross profit, net income (loss) and adjusted EBITDA were overstated by $3.0 million for fiscal year 2016 and by $6.9 million for fiscal year 2017, and web presence segment gross profit, net income (loss) and adjusted EBITDA were understated by equal amounts. Consolidated results were not impacted by this misstatement. We revised the quarterly amounts reported for the three and nine months ended September 30, 2017 for the domain and web presence segments to reflect the correction of this misstatement. The email marketing segment was not impacted by this issue. Please see Note 21 of the consolidated financial statements for further details regarding the revision.

During fiscal year 2017, we began a process to reorganize, and in some instances, eliminate legal entities associated with certain products introduced in 2015 and 2016. This reorganization is expected to provide tax benefits, as we can deduct losses on the investments in these entities in our U.S. income tax filings. After further review of these losses, we have determined that a significant portion of these losses should have been reflected in our 2017 income tax provision calculations. We have increased our net operating loss ("NOL") carry-forwards available to offset future U.S. federal taxable income from $157.6 million as of December 31, 2017, to $236.3 million. Additionally, NOL carry-forwards available to offset future state taxable income were increased from $128.6 million as of December 31, 2017, to $168.3 million. These changes in NOL carry-forwards did not impact the actual income tax provision recorded in 2017; however, due to the changes enacted in the 2017 Tax Cuts and Jobs Act, the manner in which net operating loss carry-forwards are handled does impact our 2018 provision for non-cash deferred income taxes. As such, we have decreased our provision for deferred income taxes and revised upwards our net income (loss) for the three months ended March 31, 2018 and June 30, 2018 by $4.6 million and $2.6 million, respectively. Please see Note 3 of the consolidated financial statements for further details regarding this revision.

Key Metrics

We use a number of metrics, including the following key metrics, to evaluate the operating and financial performance of our business, identify trends affecting our business, develop projections and make strategic business decisions:

• total subscribers;

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• average revenue per subscriber (“ARPS”);

• adjusted EBITDA; and

• free cash flow.

Adjusted EBITDA and free cash flow are non-GAAP financial measures. A non-GAAP financial measure is a numerical measure of a company’s operating performance, financial position or cash flow that includes or excludes amounts that are included or excluded from the most directly comparable measure calculated and presented in accordance with GAAP. Our non-GAAP financial measures may not provide information that is directly comparable to that provided by other companies in our industry, as other companies in our industry may calculate non-GAAP financial results differently. In addition, there are limitations in using non-GAAP financial measures because they are not prepared in accordance with GAAP and exclude expenses that may have a material impact on our reported financial results. For example, adjusted EBITDA excludes interest expense, which has been and will continue to be for the foreseeable future a significant recurring expense in our business. The presentation of non-GAAP financial information is not meant to be considered in isolation from, or as a substitute for, the directly comparable financial measures prepared in accordance with GAAP. We urge you to review the additional information about adjusted EBITDA and free cash flow shown below, including the reconciliations of these non-GAAP financial measures to their comparable GAAP financial measures, and not to rely on any single financial measure to evaluate our business.

The following table summarizes our key metrics (except for free cash flow, which is discussed in Liquidity and Capital Resources below) by segment for the periods presented (in thousands, except ARPS):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2017			2018		2017		2018
Consolidated metrics:
Total subscribers	5,122			4,852		5,122		4,852
Average subscribers for the period	5,170			4,885		5,247		4,951
ARPS	$	19.03		$	19.36	$	18.69	$	19.36
Adjusted EBITDA	$	93,765		$	87,496	$	256,412	$	258,716
Web presence segment metrics:
Total subscribers	3,957			3,682		3,957		3,682
Average subscribers for the period	3,999			3,709		4,079		3,765
ARPS	$	13.30		$	13.47	$	13.18	$	13.50
Adjusted EBITDA	$	43,232		$	37,900	$	119,946	$	112,997
Email marketing segment metrics:
Total subscribers	523			499		523		499
Average subscribers for the period	527			502		533		509
ARPS	$	64.26		$	67.88	$	62.16	$	66.97
Adjusted EBITDA	$	51,143		$	48,438	$	135,353	$	139,422
Domain segment metrics:
Total subscribers	642			671		642		671
Average subscribers for the period	644			674		635		677
ARPS	$	17.68		$	15.71	$	17.59	$	16.18
Adjusted EBITDA	$	(610	)	$	1,158	$	1,113	$	6,297

Total Subscribers

We define total subscribers as the approximate number of subscribers that, as of the end of a period, are identified as subscribing directly to our products on a paid basis, excluding accounts that access our solutions via resellers or that purchase only domain names from us. Subscribers of more than one brand, and subscribers with more than one distinct billing relationship or subscription with us, are counted as separate subscribers. Total subscribers for a period reflects adjustments to add or subtract subscribers as we integrate acquisitions and/or are otherwise able to identify subscribers that meet, or do not meet, this definition of total subscribers.

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Most of our web presence segment subscribers have hosting subscriptions, but web presence subscribers also include customers who do not have a web hosting subscription but subscribe to other non-hosting services such as email or domain privacy. These subscribers generally have lower-priced subscriptions than hosting subscribers.

Domain segment subscribers mostly consist of customers who have a domain name subscription as well as a subscription to another product, such as domain privacy, or a basic hosting or email service that is bundled with their domain subscription. We refer to these subscribers, along with the non-hosting web presence segment subscribers discussed above, as "light web presence" subscribers. Light web presence subscribers generally have lower long-term revenue potential than other subscribers. As of September 30, 2018, we had a total of approximately 579,000 light web presence subscribers, the majority of which were associated with our domain segment. Also included as domain segment subscribers are hosting customers of our BigRock and HostGator India brands and certain other small web hosting brands that are under common management with our domain-focused brands.

The table below shows the approximate sources of changes in our total subscriber count by segment for the twelve month period ending on September 30, 2018 (all numbers in thousands):

	Web presence		Email marketing		Domain		Total
	# Subscribers		# Subscribers		# Subscribers		# Subscribers
Total Subscribers - September 30, 2017	3,957		523		642		5,122
Light web presence subscribers	12		—		(2	)	10
Adjustments	(39	)	—		35		(4	)
Core subscriber decrease	(248	)	(24	)	(4	)	(276	)
Total Subscribers - September 30, 2018(1)	3,682		499		671		4,852

⁽¹⁾  Total email marketing subscriber count as of September 30, 2018 was impacted by a loss of approximately 10,500 subscribers, which resulted from changes made to Constant Contact’s account cancellation policy. These changes took place in the three months ended June 30, 2018, as previously disclosed.

The decrease in total subscribers from 5.122 million at September 30, 2017 to 4.852 million at September 30, 2018 was driven primarily by subscriber losses in our web presence segment, a majority of which were due to subscriber attrition in our non-strategic brands, and to a lesser extent, subscriber losses in our email marketing segment.

We expect total subscribers to continue to decrease in the foreseeable future.

Average Revenue per Subscriber

We calculate average revenue per subscriber, or ARPS, as the amount of revenue we recognize in a period, including marketing development funds and other revenue not received from subscribers, divided by the average of the number of total subscribers at the beginning of the period and at the end of the period, which we refer to as average subscribers for the period, divided by the number of months in the period. For our web presence and email marketing segments, we believe ARPS is an indicator of our ability to optimize our mix of products, services and pricing and sell products and services to both new and existing subscribers. For our domain segment, ARPS may fluctuate from period to period due to changes in the amount of non-subscriber based revenue, reseller activity and other factors impacting this segment as discussed in more detail below.

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The following table reflects the calculation of ARPS by segment (all data in thousands, except ARPS data):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2018		2017		2018
Consolidated revenue	$	295,222	$	283,770	$882,617		$862,896
Consolidated total subscribers	5,122		4,852		5,122		4,852
Consolidated average subscribers for the period	5,170		4,885		5,247		4,951
Consolidated ARPS	$	19.03	$	19.36	$	18.69	$	19.36
Web presence revenue	$	159,530	$	149,871	$	483,661	$	457,603
Web presence subscribers	3,957		3,682		3,957		3,682
Web presence average subscribers for the period	3,999		3,709		4,079		3,765
Web presence ARPS	$	13.30	$	13.47	$	13.18	$	13.50
Email marketing revenue	$	101,526	$	102,111	$	298,401	$	306,712
Email marketing subscribers(1)	523		499		523		499
Email marketing average subscribers for the period	527		502		533		509
Email marketing ARPS	$	64.26	$	67.88	$	62.16	$	66.97
Domain revenue	$	34,166	$	31,788	$	100,555	$	98,581
Domain subscribers	642		671		642		671
Domain average subscribers for the period	644		674		635		677
Domain ARPS	$	17.68	$	15.71	$	17.59	$	16.18

⁽¹⁾  Total email marketing subscriber count as of September 30, 2018 was impacted by a loss of approximately 10,500 subscribers, which resulted from changes made to Constant Contact’s account cancellation policy. These changes took place in the three months ended June 30, 2018, as previously disclosed.

ARPS does not represent an exact measure of the average amount a subscriber spends with us each month, because our calculation of ARPS includes all of our revenue, including revenue generated by non-subscribers, in the numerator. We have three principal sources of non-subscriber revenue:

• Revenue from domain-only customers. Our web presence and domain segments each earn revenue from domain-only customers. For our web presence segment, approximately 1% of our revenue for the nine months ended September 30, 2018 was earned from domain-only customers. For our domain segment, approximately 6% of our revenue for the nine months ended September 30, 2018 was earned from domain-only customers.

• Domain monetization revenue. This consists principally of revenue from our BuyDomains brand, which provides premium domain name products and services, and, to a lesser extent, revenue from advertisements placed on unused domains (often referred to as “parked” pages) owned by us or our customers. A significant portion of this revenue is associated with our domain segment.

• Revenue from marketing development funds. Marketing development funds are the amounts that certain of our partners pay us to assist in and incentivize our marketing of their products.

A portion of our revenue is generated from customers that resell our services. We refer to these customers as “resellers.” We consider these resellers (rather than the end user customers of these resellers) to be subscribers under our total subscribers definition, because we do not have a billing relationship with the end users and cannot determine the number of end users acquiring our services through a reseller. A majority of our reseller revenue is for the purchase of domains and is primarily related to our domain segment. As of September 30, 2017 and 2018, approximately 39% and 40%, respectively, of our domain segment revenue is earned from resellers. Reseller revenue earned by our web presence segment and email marketing segment was 4% and less than 1%, respectively, for all periods presented, and fluctuations in reseller revenue have not materially impacted ARPS for those segments.

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Comparison of Three Months Ended September 30, 2017 and 2018: ARPS

For the three months ended September 30, 2017 and 2018, consolidated ARPS increased from $19.03 to $19.36, respectively. This increase in ARPS was driven primarily by increases in ARPS from our email marketing segment, and to a lesser extent, increased ARPS from our web presence segment, partially offset by a decrease in ARPS from our domain segment.

Web presence ARPS increased from $13.30 for the three months ended September 30, 2017 to $13.47 for the three months ended September 30, 2018. This increase was primarily the result of a reduction in the number of subscribers to our lower-priced gateway and cloud backup products and slightly higher marketing development fund revenue, which increased ARPS by $0.04.

Email marketing ARPS increased from $64.26 for the three months ended September 30, 2017 to $67.88 for the three months ended September 30, 2018. This increase was primarily due to price increases.

Domain ARPS decreased from $17.68 for the three months ended September 30, 2017 to $15.71 for the three months ended September 30, 2018. This decrease was primarily the result of an increase in the number of light web presence subscribers in our domain segment, and to a lesser extent, a decrease in domain monetization revenue, which reduced ARPS by $0.78.

Comparison of Nine Months Ended September 30, 2017 and 2018: ARPS

For the nine months ended September 30, 2017 and 2018, consolidated ARPS increased from $18.69 to $19.36, respectively. This increase in ARPS was driven primarily by increases in ARPS from our email marketing segment, and to a lesser extent, increased ARPS from our web presence segment, partially offset by a decrease in ARPS from our domain segment.

Web presence ARPS increased from $13.18 for the nine months ended September 30, 2017 to $13.50 for the nine months ended September 30, 2018. This increase was primarily the result of a reduction in the number of subscribers to our lower-priced gateway and cloud backup products.

Email marketing ARPS increased from $62.16 for the nine months ended September 30, 2017 to $66.97 for the nine months ended September 30, 2018. This increase was primarily due to additional sales to existing customers and price increases.

Domain ARPS decreased from $17.59 for the nine months ended September 30, 2017 to $16.18 for the nine months ended September 30, 2018. This decrease was primarily the result of an increase in the number of light web presence subscribers in our domain segment, and to a lesser extent, a decrease in domain monetization revenue, which reduced ARPS by $0.50.

The table below quantifies, on a consolidated basis and by segment, domain monetization and marketing development fund revenue for the respective periods (all data in thousands, except ARPS data):

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	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2018		2017		2018
Consolidated
Marketing development fund revenue	$	2,753	$	2,592	$	8,696	$	6,949
Marketing development funds - contribution to ARPS	$	0.17	$	0.18	$	0.18	$	0.16
Domain monetization revenue	$	7,120	$	6,112	$	20,722	$	20,178
Domain monetization revenue - contribution to ARPS	$	0.45	$	0.42	$	0.44	$	0.45
Web presence
Marketing development fund revenue	$	1,981	$	2,199	$	5,872	$	6,011
Marketing development funds - contribution to ARPS	$	0.16	$	0.20	$	0.16	$	0.18
Domain monetization revenue	$	—	$	175	$	16	$	692
Domain monetization revenue - contribution to ARPS	$	—	$	0.02	$	—	$	0.02
Email marketing
Marketing development fund revenue	$	772	$	141	$	2,304	$	464
Marketing development funds - contribution to ARPS	$	0.49	$	0.09	$	0.48	$	0.10
Domain
Marketing development fund revenue	$	—	$	252	$	520	$	474
Marketing development funds - contribution to ARPS	$	—	$	0.12	$	0.09	$	0.08
Domain monetization revenue	$	7,120	$	5,937	$	20,706	$	19,486
Domain monetization revenue - contribution to ARPS	$	3.71	$	2.93	$	3.61	$	3.20

Adjusted EBITDA

Adjusted EBITDA is a non-GAAP financial measure that we calculate as net income (loss), excluding the impact of interest expense (net), income tax expense (benefit), depreciation, amortization of other intangible assets, stock-based compensation, restructuring expenses, transaction expenses and charges, (gain) loss of unconsolidated entities, impairment of other long-lived assets, SEC investigations reserve (with respect to the third quarter and full year 2017), and shareholder litigation reserve. We view adjusted EBITDA as a performance measure and believe it helps investors evaluate and compare our core operating performance from period to period.

The following table reflects the reconciliation of net loss calculated in accordance with GAAP to adjusted EBITDA for the periods presented (all data in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2018			2017			2018
Consolidated
Net loss	$	(40,264	)	$	(6,335	)	$	(107,257	)	$	(8,236	)
Interest expense, net(1)	35,645			37,238			120,516			111,203
Income tax expense	2,982			11,715			11,384			8,826
Depreciation	13,571			11,889			40,733			36,753
Amortization of other intangible assets	35,347			26,177			104,554			77,890
Stock-based compensation	19,580			7,550			48,749			21,932
Restructuring expenses	4,489			197			14,584			3,021
Transaction expenses and charges	—			—			773			—
(Gain) loss of unconsolidated entities	(33		)	—			(72		)	2
Impairment of other long-lived assets	14,448			—			14,448			—
SEC investigations reserve	8,000			—			8,000			—

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Shareholder litigation reserve	—			(935		)	—			7,325
Adjusted EBITDA	$	93,765		$	87,496		$	256,412		$	258,716
	Three Months Ended September 30,						Nine Months Ended September 30,
	2017 (2)			2018			2017			2018
Web presence
Net loss	$	(20,403	)	$	(7,565	)	$	(67,226	)	$	(20,549	)
Interest expense, net(1)	14,686			18,132			50,877			53,503
Income tax expense	798			6,136			12,645			960
Depreciation	9,399			8,401			27,401			24,769
Amortization of other intangible assets	14,884			11,941			44,431			35,812
Stock-based compensation	15,510			1,569			38,023			12,066
Restructuring expenses	3,468			54			8,944			1,654
Transaction expenses and charges	—			—			—			—
(Gain) loss of unconsolidated entities	(33		)	—			(72		)	2
Impairment of other long-lived assets	600			—			600			—
SEC investigations reserve	4,323			—			4,323			—
Shareholder litigation reserve	—			(768		)	—			4,780
Adjusted EBITDA	$	43,232		$	37,900		$	119,946		$	112,997
	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2018			2017			2018
Email marketing
Net (loss) income	$	2,202		$	6,596		$	(8,026	)	$	22,350
Interest expense, net(1)	20,514			17,128			68,212			50,866
Income tax expense (benefit)	1,323			4,179			(4,821		)	8,009
Depreciation	3,233			2,538			10,632			9,090
Amortization of other intangible assets	18,770			13,384			55,697			39,716
Stock-based compensation	1,668			4,472			5,392			7,168
Restructuring expenses	682			141			4,743			723
Transaction expenses and charges	—			—			773			—
(Gain) loss of unconsolidated entities	—			—			—			—
Impairment of other long-lived assets	—			—			—			—
SEC investigations reserve	2,751			—			2,751			—
Shareholder litigation reserve	—			—			—			1,500
Adjusted EBITDA	$	51,143		$	48,438		$	135,353		$	139,422
	Three Months Ended September 30,						Nine Months Ended September 30,
	2017 (2)			2018			2017			2018
Domain
Net loss	$	(22,063	)	$	(5,366	)	$	(32,005	)	$	(10,037	)
Interest expense, net(1)	445			1,978			1,427			6,834
Income tax expense (benefit)	861			1,400			3,560			(143		)
Depreciation	939			950			2,700			2,894
Amortization of other intangible assets	1,693			852			4,426			2,362
Stock-based compensation	2,402			1,509			5,334			2,698
Restructuring expenses	339			2			897			644
Transaction expenses and charges	—			—			—			—

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(Gain) loss of unconsolidated entities	—			—			—		—
Impairment of other long-lived assets	13,848			—			13,848		—
SEC investigations reserve	926			—			926		—
Shareholder litigation reserve	—			(167		)	—		1,045
Adjusted EBITDA	$	(610	)	$	1,158		$	1,113	$	6,297

⁽¹⁾  Interest expense includes impact of amortization of deferred financing costs, original issuance discounts ("OID") and interest income.

⁽²⁾  Net income (loss) and adjusted EBITDA for the web presence and domain segments were revised to reflect a correction of a misstatement which overstated net loss and adjusted EBITDA for the domain segment by $1.9 million and $4.9 million for the three and nine months ended September 30, 2017, respectively, and understated the web presence net loss and adjusted EBITDA by an equal amount. Please see Note 21 of the consolidated financial statements for further details regarding the revision.

Comparison of the Three Months Ended September 30, 2017 and 2018: Net Income and Adjusted EBITDA

Net loss on a consolidated basis decreased from $40.3 million for the three months ended September 30, 2017 to $6.3 million for the three months ended September 30, 2018. This decrease was primarily due to a $14.4 million decrease in impairment charges, a $12.0 million decrease in stock-based compensation expense, a $9.2 million decrease in amortization expense, an $8.0 million decrease due to the impact of the SEC investigations reserve recorded in the three months ended September 30, 2017, $4.6 million of net cost reductions impacting cost of revenue, a $4.3 million decrease in restructuring costs, a $1.7 million decrease in depreciation expense, and a $0.9 million decrease in our shareholder litigation reserve. These decreases were partially offset by reduced revenue of $11.5 million, an $8.7 million increase in income tax expense, and increased interest expense of $1.6 million.

Net loss for our web presence segment decreased from $20.4 million for the three months ended September 30, 2017 to $7.6 million for the three months ended September 30, 2018. This decrease in net loss was primarily related to a $13.9 million decrease in stock-based compensation expense, a $4.3 million decrease due to the impact of the SEC investigations reserve recorded in the three months ended September 30, 2017, a $3.4 million reduction in restructuring costs, a $2.9 million decrease in amortization expense, a net reduction of $2.3 million in costs impacting operating expense, a net reduction of $2.0 million in costs impacting cost of revenue, a $1.0 million decrease in depreciation expense, and a $0.8 million decrease in our shareholder litigation reserve. These decreases were partially offset by a $9.7 million decrease in revenue, a $5.3 million increase in income tax expense, and a $3.4 million increase in interest expense.

Net income for our email marketing segment increased from $2.2 million for the three months ended September 30, 2017 to $6.6 million for the three months ended September 30, 2018. This increase in net income was primarily due to a decrease in amortization expense of $5.4 million, a decrease in interest expense of $3.4 million, and a decrease of $2.8 million due to the impact of the SEC investigations reserve recorded in the three months ended September 30, 2017. These decreases were partially offset by a $3.3 million increase in costs impacting operating expense, a $2.9 million increase in income tax expense, and a $2.8 million increase in stock-based compensation, partially due to a change in the methodology of allocating stock-based compensation across segments.

Net loss for our domain segment decreased from $22.1 million for the three months ended September 30, 2017 to $5.4 million for the three months ended September 30, 2018. This decrease in net loss was primarily due to a $13.8 million reduction in impairment charges, a $2.6 million net reduction in costs impacting cost of revenue, a $1.6 million net reduction in costs impacting operating expense, a $0.9 million decrease due to the impact of the SEC investigations reserve recorded in the three months ended September 30, 2017, and a $0.2 million decrease in our shareholder litigation reserve. These decreases were partially offset by a $2.4 million reduction in revenue and a $1.5 million increase in net interest expense.

Adjusted EBITDA on a consolidated basis decreased from $93.8 million for the three months ended September 30, 2017 to $87.5 million for the three months ended September 30, 2018. This decrease in adjusted EBITDA was primarily a result of the adjusted EBITDA decrease in our web presence and email marketing segments, as discussed below.

Adjusted EBITDA for our web presence segment decreased from $43.2 million for the three months ended September 30, 2017 to $37.9 million for the three months ended September 30, 2018. This decrease was primarily due to a $9.7 million decrease in revenue. This decrease was partially offset by lower cost of revenue of $2.0 million, primarily driven by lower data center and support costs; lower sales and marketing expense of $1.9 million, primarily driven by lower program spend and to a lesser extent, lower labor costs; and lower general and administrative expense of $1.1 million, primarily due to lower labor costs.

Adjusted EBITDA for our email marketing segment decreased from $51.1 million for the three months ended September 30, 2017 to $48.4 million for the three months ended September 30, 2018. This decrease was due primarily to an increase in

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engineering and development costs, primarily labor related, of $2.7 million. These were partially offset by increases in revenue of $0.6 million, primarily due to price increases.

Adjusted EBITDA for our domain segment increased from negative $0.6 million for the three months ended September 30, 2017 to positive $1.2 million for the three months ended September 30, 2018. This increase in adjusted EBITDA was due primarily to a decrease in cost of revenue of $2.6 million, primarily related to lower domain registration costs and reduced support costs; lower general and administrative expense of $2.3 million, primarily related to lower labor costs, including lower overall corporate overhead costs; and a decrease in sales and marketing costs of $0.2 million, primarily related to labor cost reductions. These costs reductions were partially offset by a $2.4 million reduction in revenue and a $0.5 million increase in engineering and development costs, which were primarily labor related.

Comparison of the Nine Months Ended September 30, 2017 and 2018: Net Income and Adjusted EBITDA

Net loss on a consolidated basis decreased from $107.3 million for the nine months ended September 30, 2017 to $8.2 million for the nine months ended September 30, 2018. This decrease in net loss was due to a $26.8 million decrease in stock-based compensation expense, a $26.7 million decrease in amortization expense, a $14.4 million reduction in impairment charges, a $14.0 million reduction in costs impacting cost of revenue, an $11.6 million decrease in restructuring costs, a $9.3 million decrease in net interest expense, an $8.1 million decrease in costs impacting operating expense, a $4.0 million decrease in depreciation expense and a $2.6 million decrease in income tax expense. These decreases were partially offset by a $19.7 million decrease in revenue.

Net loss for our web presence segment decreased from $67.2 million for the nine months ended September 30, 2017 to $20.5 million for the nine months ended September 30, 2018. This decrease in net loss is primarily related to a $26.0 million decrease in stock-based compensation expense that was partially due to a change in allocation methodology for stock-based compensation relating to corporate employees, an $11.7 million decrease in income tax expense, an $11.2 million decrease in costs impacting operating expense, an $8.6 million decrease in amortization expense, a $7.9 million decrease in costs impacting cost of revenue, a $7.3 million decrease in restructuring costs, and a $2.6 million decrease in depreciation expense. These decreases were partially offset by a $26.1 million decrease in revenue and a $2.6 million increase in net interest expense.

Net (loss) income for our email marketing segment improved from a net loss of $8.0 million for the nine months ended September 30, 2017 to net income of $22.4 million for the nine months ended September 30, 2018. This improvement was primarily due to a decrease in net interest expense of $17.3 million, a decrease in amortization expense of $16.0 million, an increase in revenue of $8.3 million, a decrease in restructuring costs of $4.0 million, a decrease in depreciation expense of $1.5 million, a decrease in charges relating to litigation related matters of $1.3 million, and a decrease in costs impacting cost of revenue of $1.1 million. These decreases were partially offset by an increase in income tax expense of $12.8 million, increases in costs impacting operating expense of $5.3 million and an increase in stock-based compensation expense of $1.8 million, primarily due to a change in the allocation methodology of stock-based compensation across segments.

Net loss for our domain segment decreased from $32.0 million for the nine months ended September 30, 2017 to $10.0 million for the nine months ended September 30, 2018. This decrease in net loss was primarily due to a $13.8 million decrease in impairment charges, a $5.0 million decrease in costs impacting cost of revenue, a $3.7 million decrease in income tax expense, a $2.6 million decrease in stock-based compensation expense, a $2.2 million decrease in costs impacting operating expense, and a $2.1 million decrease in amortization expense. These decreases were partially offset by increased interest expense of $5.4 million and reduced revenue of $2.0 million.

Adjusted EBITDA on a consolidated basis increased from $256.4 million for the nine months ended September 30, 2017 to $258.7 million for the nine months ended September 30, 2018. This increase in adjusted EBITDA was primarily a result of the adjusted EBITDA increase in our email marketing and domain segments, as discussed below.

Adjusted EBITDA for our web presence segment decreased from $119.9 million for the nine months ended September 30, 2017 to $113.0 million for the nine months ended September 30, 2018. This decrease was primarily due to a decline in revenue of $26.1 million, primarily because of attrition of web presence subscribers from our non-strategic web presence brands. The decrease was partially offset by a decline in cost of revenue of $7.9 million, primarily due to lower support and data center costs, partially offset by higher domain registration costs; lower sales and marketing expense of $6.1 million, primarily due to a reduction in labor and marketing program costs; and a reduction of general and administrative expense of $6.0 million, primarily due to lower labor costs, including lower overall corporate overhead costs.

Adjusted EBITDA for our email marketing segment increased from $135.4 million for the nine months ended September 30, 2017 to $139.4 million for the nine months ended September 30, 2018. This increase was due primarily to $8.3 million of additional revenue from Constant Contact, which was mostly attributable to increased sales to existing customers and price increases, and to decreases in cost of revenue of $1.1 million, primarily due to reduction of data center costs. This increase in adjusted EBITDA was partially offset by higher engineering and development costs of $6.0 million.

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Adjusted EBITDA for our domain segment increased from $1.1 million for the nine months ended September 30, 2017 to $6.3 million for the nine months ended September 30, 2018. This increase was due primarily to lower domain registration costs of approximately $4.4 million as we focused on more profitable domain sales in this segment, and the balance primarily related to a reduction in general and administrative expense, primarily labor related.

Free Cash Flow

For a discussion of free cash flow, see Liquidity and Capital Resources.

Components of Operating Results

Revenue

We generate revenue primarily from selling subscriptions for our cloud-based products and services. The subscriptions we offer are similar across all of our brands and are provided under contracts pursuant to which we have ongoing obligations to support the subscriber. These contracts are generally for service periods of up to 36 months and typically require payment in advance at the time of initiating the subscription for the entire subscription period. Typically, we also have arrangements in place to automatically renew a subscription at the end of the subscription period. Due to factors such as discounted introductory pricing, our renewal fees may be higher than our initial subscription. A majority of our web presence segment and domain segment subscriptions have terms of 24 months or less, while our email marketing segment sells subscriptions that are mostly one-month terms. We also earn revenue from the sale of domain name registrations, premium domains and non-term based products and services, such as certain online security products and professional technical services as well as through referral fees and commissions.

Cost of Revenue

Cost of revenue includes costs of operating our subscriber support organization, fees we pay to register domain names for our subscribers, costs of operating our data center infrastructure, such as technical personnel costs associated with monitoring and maintaining our network operations, fees we pay to third-party product and service providers, and merchant fees we pay as part of our billing processes. We also allocate to cost of revenue the depreciation and amortization related to these activities and the intangible assets we have acquired, as well as a portion of our overhead costs attributable to our employees engaged in subscriber support activities. In addition, cost of revenue includes stock-based compensation expense for employees engaged in support and network operations. We generally expect cost of revenue to decrease as a percentage of revenue due to decreasing amortization expense on our intangible assets.

Gross Profit

Gross profit is the difference between revenue and cost of revenue. Gross profit has fluctuated from period to period in large part as a result of revenue and cost of revenue adjustments from purchase accounting impacts related to acquisitions, as well as revenue and cost of revenue impacts related to developments in our business. With respect to revenue, the application of purchase accounting requires us to record purchase accounting adjustments for acquired deferred revenue, which reduces the revenue recorded from acquisitions for a period of time after the acquisition. The impact generally normalizes within a year following the acquisition. With respect to cost of revenue, the application of purchase accounting requires us to defer domain registration costs, which reduces cost of revenue, and record long-lived assets at fair value, which increases cost of revenue through an increase in amortization expense over the estimated useful life of the long-lived assets. For a new subscriber that we bring on to our platform, we typically recognize revenue over the term of the subscription, even though we collect the subscription fee at the initial billing. As a result, our gross profit may be affected by the prices we charge for our subscriptions, as well as by the number of new subscribers and the terms of their subscriptions. We expect our gross profit to increase in absolute dollars in future periods, and that our gross profit margin will also increase as amortization expense related to our intangible assets declines.

Operating Expense

We classify our operating expense into three categories: sales and marketing, engineering and development, and general and administrative. In 2016, we started breaking out transaction expenses due to the significance of the costs incurred to acquire Constant Contact.

Sales and Marketing

Sales and marketing expense primarily consists of costs associated with bounty payments to our network of online partners, SEM and SEO, general awareness and brand building activities, as well as the cost of employees engaged in sales and marketing activities. Sales and marketing expense also includes costs associated with sales of products as well as stock-based compensation expense for employees engaged in sales and marketing activities. Sales and marketing expense as a percentage of revenue may increase or decrease in a given period, depending on the cost of attracting new subscribers to our solutions, changes in how we invest in different subscriber acquisition channels, changes in how we approach SEM and SEO and the

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extent of general awareness and brand building activities we may undertake, as well as the efficiency of our sales and support personnel and our ability to sell more products and services to our subscribers and drive favorable returns on invested marketing dollars.

Engineering and Development

Engineering and development expense includes the cost of employees engaged in enhancing our technology platform and our systems, developing and expanding product and service offerings, and integrating technology capabilities from our acquisitions. Engineering and development expense includes stock-based compensation expense for employees engaged in engineering and development activities. Our engineering and development expense does not include costs of leasing and operating our data center infrastructure, such as technical personnel costs associated with monitoring and maintaining our network operations and fees we pay to third-party product and service providers, which are included in cost of revenue.

General and Administrative

General and administrative expense includes the cost of employees engaged in corporate functions, such as finance and accounting, human resources, legal and executive management. General and administrative expense also includes all facility and related overhead costs not allocated to cost of revenue, as well as insurance premiums, professional service fees, and cost incurred related to regulatory and litigation matters. General and administrative expense includes stock-based compensation expense for employees engaged in general and administrative activities.

Other Income (Expense)

Other income (expense) consists primarily of costs related to, and interest paid on, our indebtedness. We include in our calculation of interest expense the cash cost of interest payments and loan financing fees, the amortization of deferred financing costs and original issue discounts and the amortization of the net present value adjustment which we may apply to some deferred consideration payments related to our acquisitions in our calculation of interest expense. Interest income consists primarily of interest income earned on our cash and cash equivalents balances.

Income Tax Expense (Benefit)

We estimate our income taxes in accordance with the asset and liability method, under which deferred tax assets and liabilities are recognized based on temporary differences between the assets and liabilities in our consolidated financial statements and the financial statements that are prepared in accordance with tax regulations for the purpose of filing our income tax returns, using statutory tax rates. This methodology requires us to record a valuation allowance against net deferred tax assets if, based upon the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized.

Critical Accounting Policies and Estimates

We prepare our consolidated financial statements in accordance with U.S. GAAP. The preparation of our consolidated financial statements requires us to make estimates, judgments and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expense during the reported periods. We base our estimates, judgments and assumptions on historical experience and on various other assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Our actual results may differ from the estimates, judgments and assumptions made by our management. To the extent that there are differences between our estimates, judgments and assumptions and our actual results, our future financial statement presentation, financial condition, results of operations and cash flows may be affected.

We believe that our critical accounting policies and estimates are the assumptions and estimates associated with the following:

• revenue recognition,

• goodwill,

• long-lived assets,

• business combinations,

• derivative instruments,

• depreciation and amortization,

• income taxes,

• stock-based compensation arrangements, and

• segment information.

Except for the adoption of Accounting Standards Codification 606, or ASC 606, there have been no material changes to our critical accounting policies since December 31, 2017. For further information on our critical accounting policies and

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estimates, including information on our adoption of ASC 606, see Note 2 to the consolidated financial statements appearing in Part I, Item 1 in this Quarterly Report on Form 10-Q and our Annual Report on Form 10-K filed with the Securities and Exchange Commission, or the SEC, on February 22, 2018.

Results of Operations

The following tables set forth our results of operations for the periods presented. The period-to-period comparison of financial results is not necessarily indicative of future results.

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2018			2017			2018
	(in thousands)
Revenue	$	295,222		$	283,770		$	882,617		$	862,896
Cost of revenue	158,865			128,945			454,197			393,597
Gross profit	136,357			154,825			428,420			469,299
Operating expense:
Sales and marketing	66,276			63,831			211,154			197,733
Engineering and development	19,882			22,683			60,393			64,559
General and administrative	51,269			25,693			130,929			95,212
Transaction expenses	—			—			773			—
Total operating expense	137,427			112,207			403,249			357,504
Income from operations	(1,070		)	42,618			25,171			111,795
Other income (expense):
Other income (expense)	(600		)	—			(600		)	—
Interest income	203			289			506			720
Interest expense	(35,848		)	(37,527		)	(121,022		)	(111,923		)
Total other expense—net	(36,245		)	(37,238		)	(121,116		)	(111,203		)
(Loss) income before income taxes and equity earnings of unconsolidated entities	(37,315		)	5,380			(95,945		)	592
Income tax expense	2,982			11,715			11,384			8,826
Loss before equity earnings of unconsolidated entities	(40,297		)	(6,335		)	(107,329		)	(8,234		)
Equity (income) loss of unconsolidated entities, net of tax	(33		)	—			(72		)	2
Net loss	$	(40,264	)	$	(6,335	)	$	(107,257	)	$	(8,236	)
Total net loss attributable to non-controlling interest	—			—			7,524			—
Net loss attributable to Endurance International Group Holdings, Inc.	$	(40,264	)	$	(6,335	)	$	(114,781	)	$	(8,236	)

Comparison of Three Months Ended September 30, 2017 and 2018

Revenue

	Three Months Ended September 30,				Change
	2017		2018		Amount			%
	(dollars in thousands)
Revenue	$	295,222	$	283,770	$	(11,452	)	(4	)%

Revenue decreased by $11.5 million, or 4%, from $295.2 million for the three months ended September 30, 2017 to $283.8 million for the three months ended September 30, 2018. This decrease was attributable to $9.7 million in reduced revenue from our web presence segment and $2.4 million in reduced revenue from our domain segment, offset by a $0.6 million increase in revenue from our email marketing segment, each of which are further discussed below.

Web presence segment revenue decreased by $9.7 million, or 6%, from $159.5 million for the three months ended September 30, 2017 to $149.9 million for the three months ended September 30, 2018. This decrease was primarily the result of lower revenue from the non-strategic brands discussed in the "Overview" section above.

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Email marketing segment revenue increased by $0.6 million, or 1%, from $101.5 million for the three months ended September 30, 2017 to $102.1 million for the three months ended September 30, 2018. This increase was due to an increase in pricing.

Domain segment revenue decreased by $2.4 million, or 7%, from $34.2 million for the three months ended September 30, 2017 to $31.8 million for the three months ended September 30, 2018. This decrease was primarily due to a $1.4 million reduction in revenue from our domain-focused brands and a $1.2 million reduction in domain monetization revenue.

Our revenue is generated primarily from our products and services delivered on a subscription basis, which include web hosting, domains, website builders, email marketing, search engine marketing and other similar services. We also generate non-subscription revenue through domain monetization and marketing development funds. Non-subscription revenue decreased from $9.9 million, or 3% of total revenue for the three months ended September 30, 2017 to $8.7 million, or 3% of total revenue for the three months ended September 30, 2018, primarily due to lower domain monetization revenue.

Cost of Revenue

	Three Months Ended September 30,
	2017				2018				Change
	Amount		% of Revenue		Amount		% of Revenue		Amount			%
	(dollars in thousands)
Cost of revenue	$	158,865	54	%	$	128,945	45	%	$	(29,920	)	(19	)%

Cost of revenue decreased by $29.9 million, or 19%, from $158.9 million for the three months ended September 30, 2017 to $128.9 million for the three months ended September 30, 2018. This decrease was primarily due to lower impairment charges of $13.8 million, lower amortization expense of $9.2 million relating to intangible assets arising from our acquisitions, and other decreases in cost of revenue across our segments as discussed below.

Our cost of revenue contains a significant portion of non-cash expenses, in particular amortization expense for the intangible assets we have acquired through our acquisitions and any related impairments to those assets. The following table sets forth the significant non-cash components of cost of revenue:

	Three Months Ended September 30,
	2017		2018
	(in thousands)
Amortization expense	$	35,347	$	26,177
Depreciation expense	$	11,603	$	10,433
Stock-based compensation expense	$	1,553	$	828
Impairment charges	$	13,848	—

Cost of revenue for our web presence segment decreased by $7.7 million, or 9%, from $82.5 million for the three months ended September 30, 2017 to $74.8 million for the three months ended September 30, 2018. This decrease was primarily due to the following factors: lower amortization expense of $2.9 million; lower support costs of $2.3 million, primarily due to cost savings from the consolidation of our U.S. support centers and other gains in customer support efficiencies; lower data center costs of $1.7 million, primarily due to vendor pricing concessions; lower stock-based compensation expense of $1.7 million; and lower depreciation of $0.8 million. These decreases were partially offset by increases in domain registration costs of $1.0 million and an increase in overhead allocations of $0.5 million.

Cost of revenue for our email marketing segment decreased by $5.5 million, or 15%, from $36.2 million for the three months ended September 30, 2017 to $30.8 million for the three months ended September 30, 2018. This decrease was primarily due to lower amortization expense of $5.4 million.

Cost of revenue for our domain segment decreased by $16.7 million, or 42%, from $40.1 million for the three months ended September 30, 2017 to $23.4 million for the three months ended September 30, 2018. This decrease was primarily due to the impact of impairment charges of $13.8 million recorded during the three months ended September 30, 2017, lower domain registration costs of $1.9 million, lower support costs of $1.0 million, and lower amortization expense of $0.9 million.

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Gross Profit

	Three Months Ended September 30,
	2017				2018				Change
	Amount		% of Revenue		Amount		% of Revenue		Amount		%
	(dollars in thousands)
Gross profit	$	136,357	46	%	$	154,825	55	%	$	18,468	14	%

Gross profit increased by $18.5 million, or 14%, from $136.4 million for the three months ended September 30, 2017 to $154.8 million for the three months ended September 30, 2018. This increase was primarily due to an $6.1 million increase from our email marketing segment, due mostly to the increase in revenue and decrease in amortization expense discussed above, a $14.4 million increase from our domain segment, due mostly to the impact of prior year impairment charges discussed above, and a decrease of $2.0 million in our web presence segment. Our gross profit as a percentage of revenue increased by nine percentage points year over year, from 46% for the three months ended September 30, 2017 to 55% for the three months ended September 30, 2018.

The following table sets forth gross profit and the significant non-cash components of cost of revenue as a percentage of revenue:

	Three Months Ended September 30,
	2017			2018
	(dollars in thousands)
Revenue	$	295,222		$	283,770
Gross profit	$	136,357		$	154,825
Gross profit as % of revenue	46		%	55		%
Amortization expense as % of revenue	12		%	9		%
Depreciation expense as % of revenue	4		%	4		%
Impairment charges	5		%	—		%
Stock-based compensation expense as % of revenue	*			*

* Less than 1%.

Web presence segment gross profit decreased by $2.0 million, or 3%, from $77.0 million for the three months ended September 30, 2017 to $75.1 million for the three months ended September 30, 2018. This decrease was primarily due to the decline in web presence segment revenue, partially offset by a decrease in cost of revenue, as described above. Our web presence gross profit as a percentage of revenue increased by two percentage points year over year, from 48% for the three months ended September 30, 2017 to 50% for the three months ended September 30, 2018.

Email marketing segment gross profit increased by $6.1 million, or 9%, from $65.3 million for the three months ended September 30, 2017 to $71.4 million for the three months ended September 30, 2018. This increase was primarily due to increased revenue and decreased cost of revenue as described above. Our email marketing gross profit as a percentage of revenue increased by six percentage points year over year, from 64% for the three months ended September 30, 2017 to 70% for the three months ended September 30, 2018.

Domain segment gross profit increased by $14.4 million, or 241%, from a negative $6.0 million for the three months ended September 30, 2017 to a positive $8.4 million for the three months ended September 30, 2018. This increase was primarily due to decreased cost of revenue as described above. Our domain gross profit as a percentage of revenue increased by 43 percentage points year over year, from negative 17% for the three months ended September 30, 2017 to 26% for the three months ended September 30, 2018.

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Operating Expense

	Three Months Ended September 30,
	2017				2018				Change
	Amount		% of Revenue		Amount		% of Revenue		Amount			%
	(dollars in thousands)
Sales and marketing	$	66,276	22	%	$	63,831	22	%	$	(2,445	)	(4	)%
Engineering and development	19,882		7	%	22,683		8	%	2,801			14	%
General and administrative	51,269		17	%	25,693		9	%	(25,576		)	(50	)%
Transaction expenses	—		—	%	—		—	%	—			—	%
Total	$	137,427	47	%	$	112,207	40	%	$	(25,220	)	(18	)%

Sales and Marketing. Sales and marketing expense decreased by $2.4 million, or 4%, from $66.3 million for the three months ended September 30, 2017 to $63.8 million for the three months ended September 30, 2018. Web presence segment sales and marketing expenses declined by $3.5 million, which was partially offset by increased email marketing segment sales and marketing costs of $0.6 million, and increased domain sales and marketing costs of $0.5 million.

Sales and marketing expense for our web presence segment decreased by $3.5 million, or 9%, from $40.1 million for the three months ended September 30, 2017 to $36.5 million for the three months ended September 30, 2018. This decrease was primarily due to a decrease of $1.5 million in marketing program spend, a decrease in stock-based compensation expense of $0.8 million, a decrease of $0.3 million in labor costs, and a decrease of $0.8 million in restructuring costs.

Sales and marketing expense for our email marketing segment increased by $0.6 million, or 3%, from $21.3 million for the three months ended September 30, 2017 to $21.9 million for the three months ended September 30, 2018. The increase was due primarily to higher marketing program spend of $0.6 million and labor costs of $0.5 million. These increases were partially offset by lower depreciation of $0.2 million, lower stock-based compensation of $0.2 million, and lower restructuring costs of $0.1 million.

Sales and marketing expense for our domain segment increased by $0.5 million, or 10%, from $4.9 million for the three months ended September 30, 2017 to $5.3 million for the three months ended September 30, 2018. The increase was due primarily to increases in marketing spend of $0.8 million, partially offset by decreases in labor costs.

Engineering and Development. Engineering and development expense increased by $2.8 million, or 14%, from $19.9 million for the three months ended September 30, 2017 to $22.7 million for the three months ended September 30, 2018. Email marketing segment engineering and development expense increased by $2.5 million and domain segment engineering and development expense increased by $0.8 million, while web presence segment engineering and development expense decreased by $0.4 million.

Engineering and development expense for our web presence segment decreased by $0.4 million, or 4%, from $10.1 million for the three months ended September 30, 2017 to $9.7 million for the three months ended September 30, 2018. This decrease was primarily due to lower stock-based compensation expense of $0.9 million, lower depreciation expense of $0.2 million, and lower restructuring costs of $0.1 million, partially offset by increases in labor costs of $0.8 million.

Engineering and development expense for our email marketing segment increased by $2.5 million, or 30%, from $8.3 million for the three months ended September 30, 2017 to $10.8 million for the three months ended September 30, 2018. This increase was primarily the result of increases in labor costs.

Engineering and development expense for our domain segment increased by $0.8 million, or 51%, from $1.5 million for the three months ended September 30, 2017 to $2.3 million for the three months ended September 30, 2018. This increase was primarily the result of increases in labor costs.

General and Administrative. General and administrative expense decreased by $25.6 million, or 50%, from $51.3 million for the three months ended September 30, 2017 to $25.7 million for the three months ended September 30, 2018. Web presence segment general and administrative expense decreased by $19.0 million, domain general and administrative expense decreased by $5.7 million and email marketing segment general and administrative expense decreased by $0.9 million.

General and administrative expense for our web presence segment decreased by $19.0 million, or 61%, from $31.2 million for the three months ended September 30, 2017 to $12.2 million for the three months ended September 30, 2018. This decrease was attributable to a $10.6 million decrease in stock-based compensation expense, lower charges of $4.3 million due to the impact of the SEC investigations reserve recorded in the three months ended September 30, 2017, lower restructuring

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charges of $2.2 million, reduced labor costs of $1.5 million, a $0.8 million decrease in our shareholder litigation reserve, and other net reductions of $0.3 million.

General and administrative expense for our email marketing segment decreased by $0.9 million, or 8%, from $11.6 million for the three months ended September 30, 2017 to $10.7 million for the three months ended September 30, 2018. This decrease was primarily the result of lower charges of $2.8 million due to the impact of the SEC investigations reserve recorded in the three months ended September 30, 2017 and decreases in labor costs, partially offset by increases in stock-based compensation of $2.5 million.

General and administrative expense for our domain segment decreased by $5.7 million, or 67%, from $8.4 million for the three months ended September 30, 2017 to $2.8 million for the three months ended September 30, 2018. This decrease was primarily the result of lower labor costs of $2.1 million, lower stock-based compensation expense of $1.9 million, lower charges of $0.9 million due to the impact of the SEC investigations reserve recorded in the three months ended September 30, 2017, and lower restructuring costs of $0.3 million, and a $0.2 million decrease in our shareholder litigation reserve.

Other Expense, Net

	Three Months Ended September 30,						Change
	2017			2018			Amount		%
	(dollars in thousands)
Other expense, net	$	(36,245	)	$	(37,238	)	$	993	3	%

Other expense, net increased by $1.0 million, or 3%, from $36.2 million for the three months ended September 30, 2017 to $37.2 million for the three months ended September 30, 2018. The increase was attributable to $1.6 million of increased net interest expense, primarily because of the increase in LIBOR. The increase was partially offset by lower impairment charges of $0.6 million.

Income Tax Expense

	Three Months Ended September 30,				Change
	2017		2018		Amount		%
	(dollars in thousands)
Income tax expense	$	2,982	$	11,715	$	8,733	293	%

For the three months ended September 30, 2017 and 2018, we recognized tax expense of $3.0 million and $11.7 million, respectively, in the consolidated statements of operations and comprehensive loss. The income tax expense for the three months ended September 30, 2018 was primarily attributable to a federal and state deferred tax expense of $12.9 million, a federal and state current income tax expense of $0.1 million, and foreign deferred tax expense of $0.3 million, partially offset by a foreign current tax benefit of $1.6 million. The income tax expense for the three months ended September 30, 2017 was primarily attributable to a federal and state deferred tax expense of $1.9 million, federal and state current income taxes of $0.3 million, a foreign current tax expense of $0.7 million and foreign deferred tax expense of $0.2 million.

On December 22, 2017, the United States enacted tax reform legislation by passage of the commonly named Tax Cuts and Jobs Act, which significantly changes the existing U.S. tax laws, including a reduction in the corporate tax rate from 35% to 21% and a move from a worldwide tax system to a territorial system, as well as other changes. As a result of enactment of the legislation, we incurred an additional one-time income tax benefit on the re-measurement of certain deferred tax assets and liabilities in the amount of $16.9 million for the year ended December 31, 2017. The legislation also introduced substantial international tax reform that moves the U.S. toward a territorial system, in which income earned in other countries will generally not be subject to U.S. taxation. The accumulated foreign earnings of U.S. shareholders of certain foreign corporations will be subject to a one-time transition tax. Amounts held in cash or cash equivalents will be subject to a 15.5% tax, while amounts held in illiquid assets will be subject to an eight percent tax. Due to an accumulated deficit in the undistributed earnings of our foreign subsidiaries, the one-time transition tax will not apply to us. Additionally, the legislation also contains provisions which would generally limit our deduction for interest expense to 30% of adjusted taxable earnings before interest, taxes, depreciation and amortization ("Tax EBITDA"). The legislation includes provisions which provide a deduction related to intangible income that is owned in the U.S., an additional tax charge related to income from intangibles owned outside the U.S., and a new base-erosion and anti-abuse tax. Although we have substantially completed our work on the effects of the Tax Cuts and Jobs Act, we continue to evaluate certain sections of the new law that may be pertinent to our tax situation. We have also adopted an accounting policy, as provided by the FASB in their January 10, 2018 Board Meeting, to account for the tax effects of the Global Intangible Low Tax Income ("GILTI") in the periods that the Company is subject to such tax. As a result of this accounting policy, we will not be recording the tax effect of the deferred tax assets and liabilities associated with the GILTI tax.

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During fiscal year 2017, we recorded a deferred tax expense and maintained a deferred tax liability to account primarily for the different book and tax treatment of tax deductible goodwill. Prior to 2018, we could not utilize deferred tax assets against the portion of the deferred tax liability related to tax deductible goodwill, as that liability was considered to have an indefinite life. With the passage of the 2017 Tax Cuts and Jobs Act, NOL carry-forwards generated after 2017 and the carry-forwards of disallowed interest expense are indefinite in life, and therefore are eligible to offset our indefinite life deferred tax liabilities. Our deferred tax expense (benefit) during 2018 has been impacted by this change. We expect to record an approximate $6.0 million benefit from income taxes for the full 2018 fiscal year, mainly due to a projected decrease in our deferred tax liability. We anticipate that our income tax provision (benefit) will fluctuate from quarter to quarter in future periods as we recognize our full year expected income tax expense (benefit) based on the percentage of full year pre-tax income earned in each interim period.

Comparison of Nine Months Ended September 30, 2017 and 2018

Revenue

	Nine Months Ended September 30,				Change
	2017		2018		Amount			%
	(dollars in thousands)
Revenue	$	882,617	$	862,896	$	(19,721	)	(2	)%

Revenue decreased by $19.7 million, or 2%, from $882.6 million for the nine months ended September 30, 2017 to $862.9 million for the nine months ended September 30, 2018. This decrease was attributable to a decrease in revenue from our web presence segment and to a lesser extent from our domain segment, partially offset by growth from our email marketing segment as discussed below.

Web presence segment revenue decreased by $26.1 million, or 5%, from $483.7 million for the nine months ended September 30, 2017 to $457.6 million for the nine months ended September 30, 2018. This decrease was primarily the result of subscriber attrition in our non-strategic brands.

Email marketing segment revenue increased by $8.3 million, or 3%, from $298.4 million for the nine months ended September 30, 2017 to $306.7 million for the nine months ended September 30, 2018. This increase was due to higher revenue from existing customers of Constant Contact, combined with price increases.

Domain segment revenue decreased by $2.0 million, or 2%, from $100.6 million for the nine months ended September 30, 2017 to $98.6 million for the nine months ended September 30, 2018. This decrease was primarily due to a $1.2 million reduction in domain monetization revenue, with the balance of the decrease relating to reduced revenue from our domain-focused brands.

Our revenue is generated primarily from our products and services delivered on a subscription basis, which include web hosting, domains, website builders, search engine marketing and other similar services. We also generate non-subscription revenue through domain monetization and marketing development funds. Non-subscription revenue decreased from $29.4 million, or 3% of total revenue, for the nine months ended September 30, 2017 to $27.1 million, or 3% of revenue, for the nine months ended September 30, 2018, due primarily to a decrease in marketing development funds.

Cost of Revenue

	Nine Months Ended September 30,
	2017				2018				Change
	Amount		% of Revenue		Amount		% of Revenue		Amount			%
	(dollars in thousands)
Cost of revenue	$	454,197	51	%	$	393,597	46	%	$	(60,600	)	(13	)%

Cost of revenue decreased by $60.6 million, or 13%, from $454.2 million for the nine months ended September 30, 2017 to $393.6 million for the nine months ended September 30, 2018. Web presence segment cost of revenue decreased by $22.0 million, email marketing segment cost of revenue decreased by $18.4 million, and domain segment cost of revenue decreased by $20.2 million.

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Our cost of revenue contains a significant portion of non-cash expenses, in particular amortization expense for the intangible assets we have acquired through our acquisitions and the acquisition by investment funds and entities affiliated with Warburg Pincus and Goldman, Sachs & Co. on December 22, 2011 of a controlling interest in us. The following table sets forth the significant non-cash components of cost of revenue:

	Nine Months Ended September 30,
	2017		2018
	(dollars in thousands)
Amortization expense	$	104,554	$	77,890
Depreciation expense	$	34,501	$	32,448
Impairment charges	$	13,848	$	—
Stock-based compensation expense	$	4,720	$	3,223

Cost of revenue for our web presence segment decreased by $22.0 million, or 9%, from $254.5 million for the nine months ended September 30, 2017 to $232.5 million for the nine months ended September 30, 2018. This decrease was primarily due to lower amortization expense of $8.6 million; lower support costs of $7.3 million, primarily due to cost savings from the consolidation of our U.S. support centers and other gains in customer support efficiencies; lower data center costs of $4.9 million; lower stock-based compensation of $2.2 million; lower restructuring charges of $1.8 million; and lower depreciation of $1.5 million. These decreases were partially offset primarily by higher domain registration costs of $2.0 million, higher third party application costs of $1.5 million and higher merchant fees of $0.4 million.

Cost of revenue for our email marketing segment decreased by $18.4 million, or 17%, from $110.2 million for the nine months ended September 30, 2017 to $91.8 million for the nine months ended September 30, 2018. This decrease was primarily due to a reduction in amortization expense of $16.0 million, lower data center costs of $2.3 million and lower restructuring costs of $0.8 million. These decreases were partially offset by $0.4 million in increased support costs.

Cost of revenue for our domain marketing segment decreased by $20.2 million, or 23%, from $89.5 million for the nine months ended September 30, 2017 to $69.3 million for the nine months ended September 30, 2018. This decrease was primarily due to a decrease in impairment charges of $13.8 million, a decrease of $4.4 million related to related to lower domain registration costs, and a decrease in amortization expense of $2.1 million.

Gross Profit

	Nine Months Ended September 30,
	2017				2018				Change
	Amount		% of Revenue		Amount		% of Revenue		Amount		%
	(dollars in thousands)
Gross profit	$	428,420	49	%	$	469,299	54	%	$	40,879	10	%

Gross profit increased by $40.9 million, or 10%, from $428.4 million for the nine months ended September 30, 2017 to $469.3 million for the nine months ended September 30, 2018. Email marketing gross profit increased by $26.7 million, domain gross profit increased by $18.2 million, and web presence gross profit decreased by $4.0 million. Our gross profit as a percentage of revenue increased by five percentage points from 49% for the nine months ended September 30, 2017 to 54% for the nine months ended September 30, 2018, mainly due to the improvements in gross profit in our email marketing and domain segments. The following table sets forth gross profit and the significant non-cash components of cost of revenue as a percentage of revenue:

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	Nine Months Ended September 30,
	2017			2018
	(dollars in thousands)
Revenue	$	882,617		$	862,896
Gross profit	$	428,420		$	469,299
Gross profit % of revenue	49		%	54		%
Amortization expense % of revenue	12		%	9		%
Depreciation expense % of revenue	4		%	4		%
Impairment charges % of revenue	2		%	—		%
Stock-based compensation expense % of revenue	*			*

* Less than 1%. 

Web presence segment gross profit decreased by $4.0 million, or 2%, from $229.2 million for the nine months ended September 30, 2017 to $225.1 million for the nine months ended September 30, 2018. This decrease was primarily due to the $26.1 million decrease in revenue as described above, partially offset by a $22.0 million decline in cost of revenue. Our web presence gross profit as a percentage of revenue increased by two percentage points year over year, from 47% for the nine months ended September 30, 2017 to 49% for the nine months ended September 30, 2018. This increase in gross profit percentage is primarily attributable to the reduction in cost of revenue, which decreased by a bigger percentage than the decrease in revenue.

Email marketing segment gross profit increased by $26.7 million, or 14%, from $188.2 million for the nine months ended September 30, 2017 to $214.9 million for the nine months ended September 30, 2018. This increase was primarily due to the increase in email marketing revenue discussed above, combined with the decrease in cost of revenue. Our email marketing segment gross profit as a percentage of revenue increased by seven percentage points year over year, from 63% for the nine months ended September 30, 2017 to 70% for the nine months ended September 30, 2018. This increase was primarily the result of the reduction in cost of revenue.

Domain segment gross profit increased by $18.2 million, or 165%, from $11.1 million for the nine months ended September 30, 2017 to $29.2 million for the nine months ended September 30, 2018. Our domain segment gross profit as a percentage of revenue increased by nineteen percentage points year over year, from 11% for the nine months ended September 30, 2017 to 30% for the nine months ended September 30, 2018. This increase was primarily due to the decrease in cost of revenue described above.

Operating Expense

	Nine Months Ended September 30,
	2017				2018				Change
	Amount		% of Revenue		Amount		% of Revenue		Amount			%
	(dollars in thousands)
Sales and marketing	$	211,154	24	%	$	197,733	23	%	$	(13,421	)	(6	)%
Engineering and development	60,393		7	%	64,559		7	%	4,166			7	%
General and administrative	130,929		15	%	95,212		11	%	(35,717		)	(27	)%
Transaction expense	773		—	%	—		—	%	(773		)	(100	)%
Total	$	403,249	46	%	$	357,504	41	%	$	(45,745	)	(11	)%

Sales and Marketing. Sales and marketing expense decreased by $13.4 million, or 6%, from $211.2 million for the nine months ended September 30, 2017 to $197.7 million for the nine months ended September 30, 2018. Web presence segment sales and marketing expense decreased by $10.8 million, and email marketing segment sales and marketing expense decreased by $2.9 million, while sales and marketing expense for our domain segment increased slightly.

Sales and marketing expense for our web presence segment decreased by $10.8 million, or 9%, from $122.9 million for the nine months ended September 30, 2017 to $112.1 million for the nine months ended September 30, 2018. This decrease was primarily due to a $3.2 million reduction in stock-based compensation expense; a $2.8 million reduction in labor costs; a $2.8

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million reduction in marketing program spend; a $1.5 million reduction in restructuring charges; and a $0.5 million net reduction of other marketing costs.

Sales and marketing expense for our email marketing segment decreased by $2.9 million, or 4%, from $73.5 million for the nine months ended September 30, 2017 to $70.6 million for the nine months ended September 30, 2018. This decrease was primarily due to a decrease in labor costs of $3.2 million, and a decrease in restructuring charges of $1.5 million. These decreases were partially offset by a $2.2 million increase in marketing program spend and a $0.4 million net increase in other marketing costs.

Sales and marketing expense for our domain segment increased by $0.3 million, or 2%, from $14.7 million for the nine months ended September 30, 2017 to $15.0 million for the nine months ended September 30, 2018. The increase was due primarily to an increase in marketing program spend of $1.0 million, partially offset by labor related cost reductions.

Engineering and Development. Engineering and development expense increased by $4.2 million, or 7%, from $60.4 million for the nine months ended September 30, 2017 to $64.6 million for the nine months ended September 30, 2018. Web presence segment engineering and development expense decreased by $1.6 million, email marketing segment engineering and development expense increased by $4.4 million, and domain segment engineering and development expense increased by $1.4 million.

Engineering and development expense for our web presence segment decreased by $1.6 million, or 5%, from $29.8 million for the nine months ended September 30, 2017 to $28.2 million for the nine months ended September 30, 2018. This decrease was mostly attributable to a reduction in depreciation expense of $1.0 million, a reduction in stock-based compensation expense of $0.9 million, and a reduction in restructuring charges of $0.5 million, partially offset by higher labor costs of $0.8 million.

Engineering and development expense for our email marketing segment increased by $4.4 million, or 17%, from $26.3 million for the nine months ended September 30, 2017 to $30.7 million for the nine months ended September 30, 2018. This increase was primarily related to labor cost increases of $6.0 million, partially offset by lower restructuring costs of $0.9 million and lower stock-based compensation expense of $0.5 million.

Engineering and development expense for our domain segment increased by $1.4 million, or 33%, from $4.2 million for the nine months ended September 30, 2017 to $5.6 million for the nine months ended September 30, 2018. This increase was primarily due to increased labor costs.

General and Administrative. General and administrative expense decreased by $35.7 million, or 27%, from $130.9 million for the nine months ended September 30, 2017 to $95.2 million for the nine months ended September 30, 2018. Web presence general and administrative expense decreased $28.7 million, domain segment general and administrative expense decreased by $7.1 million and email marketing segment general and administrative expense increased by $0.1 million.

General and administrative expense for our web presence segment decreased by $28.7 million, or 36%, from $79.6 million for the nine months ended September 30, 2017 to $50.9 million for the nine months ended September 30, 2018. This decrease was primarily related to lower stock-based compensation expense of $19.6 million; lower labor costs of $4.4 million; lower restructuring costs of $3.5 million; and reduced integration costs of $1.0 million. These decreases were partially offset by an increase in charges relating to litigation related matters of $0.5 million.

General and administrative expense for our email marketing segment increased by $0.2 million, or 0%, from $32.2 million for the nine months ended September 30, 2017 to $32.4 million for the nine months ended September 30, 2018, primarily due to increased stock-based compensation of $2.1 million partially due to a change in the allocation methodology for stock-based compensation across segments, increased labor costs of $0.7 million and increased charges for sales and use tax reserves of $0.6 million. These increases were partially offset primarily by lower charges relating to litigation related matters of $1.3 million and lower restructuring charges of $0.8 million.

General and administrative expense for our domain segment decreased by $7.1 million, or 37%, from $19.1 million for the nine months ended September 30, 2017 to $12.0 million for the nine months ended September 30, 2018, due mostly to a reduction in stock-based compensation expense of $3.7 million, with the balance of the reduction primarily due to lower labor costs, including corporate overhead allocations.

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Transaction Expenses. Transaction expenses decreased by $0.8 million, or 100%, from $0.8 million for the nine months ended September 30, 2017 to $0.0 million for the nine months ended September 30, 2018. The period-over-period decrease was primarily attributable to our reduction in acquisitions following the purchase of Constant Contact in February 2016.

Other Expense, Net

	Nine Months Ended September 30,						Change
	2017			2018			Amount			%
	(dollars in thousands)
Other expense, net	$	(121,116	)	$	(111,203	)	$	(9,913	)	(8	)%

Other expense, net decreased by $9.9 million, or 8%, from $121.1 million for the nine months ended September 30, 2017 to $111.2 million for the nine months ended September 30, 2018. The decrease was primarily due to a $9.1 million decrease in interest expense, including service fees, of which $5.0 million related to lower costs incurred in connection with our refinancings, specifically deferred financing costs that were immediately expensed and a loss on debt extinguishment, both of which were higher in the 2017 period. In addition, the principal balances on our debt declined due to both required and voluntary principal payments.

Income Tax Expense

	Nine Months Ended September 30,				Change
	2017		2018		Amount			%
	(dollars in thousands)
Income tax expense	$	11,384	$	8,826	$	(2,558	)	(22	)%

For the nine months ended September 30, 2017 and 2018, we recognized a tax expense of $11.4 million and $8.8 million, respectively, in the consolidated statements of operations and comprehensive loss. The income tax expense for the nine months ended September 30, 2018 was attributable to a federal and state deferred tax expense of $8.9 million due primarily to the different book and tax treatment of goodwill, a federal and state current tax expense of $0.5 million million, and foreign deferred tax expense of $0.2 million, partially offset by a foreign current tax benefit of $0.8 million.

The income tax expense for the nine months ended September 30, 2017 was primarily attributable to a federal and state deferred tax expense of $7.3 million related to the differences in the accounting treatment of goodwill under U.S. GAAP and tax accounting for goodwill, federal and state current income taxes of $2.6 million, and a foreign current tax expense of $2.3 million, partially offset by a foreign deferred tax benefit of $0.8 million.

Liquidity and Capital Resources

Sources of Liquidity

We have funded our operations since inception primarily with cash flow generated by operations, borrowings under our credit facilities and public offerings of our securities.

In November 2013, we entered into a $1,050.0 million first lien term loan facility and a $125.0 million revolving credit facility. On February 9, 2016, in connection with our acquisition of Constant Contact and the related financing of that transaction, we entered into a $735.0 million incremental first lien term loan facility and a new $165.0 million revolving credit facility, which replaced our previous revolving credit facility and which we refer to as the "2016 Revolver", and our wholly owned subsidiary, EIG Investors, issued $350.0 million aggregate principal amount of 10.875% senior notes due 2024, or the "Senior Notes". On June 14, 2017, we refinanced our then-outstanding term loans and replaced them with a new $1,697.3 million first lien term loan facility, which we refer to as the “2017 Term Loan”. On June 20, 2018, we refinanced the 2017 Term Loan and replaced it with a new $1,580.3 million first lien term loan facility, which we refer to as the "2018 Term Loan", and we also extended the maturity of $106.2 million of the 2016 Revolver.

We refer to the 2018 Term Loan (or prior to June 20, 2018, the 2017 Term Loan) and the 2016 Revolver together as the "Senior Credit Facilities."

2018 First Lien Term Loan Facility. The 2018 Term Loan was issued at par and has a maturity date of February 9, 2023. The 2018 Term Loan automatically bears interest at an alternate base rate unless we give notice to opt for the LIBOR-based

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interest rate. The LIBOR-based interest rate for the 2018 Term Loan is 3.75% per annum plus the greater of an adjusted LIBOR and 1.00%. The alternate base rate for the 2018 Term Loan is 2.75% per annum plus the greatest of the prime rate, the federal funds effective rate plus 0.50%, an adjusted LIBOR for a one-month interest period plus 1.00%, and 2.00%. The 2018 Term Loan requires quarterly mandatory repayments of principal. During the nine months ended September 30, 2018, we made two mandatory repayments of $7.9 million, one voluntary prepayment of $17.0 million and one voluntary prepayment of $17.5 million following the refinancing of the 2017 Term Loan.

2017 First Lien Term Loan Facility. The 2017 Term Loan was issued at a price of 99.75% of par and had a maturity date of February 9, 2023. The 2017 Term Loan automatically bore interest at an alternate base rate unless we gave notice to opt for the LIBOR-based interest rate. The LIBOR-based interest rate for the 2017 Term Loan was 4.00% per annum plus the greater of an adjusted LIBOR and 1.00%. The alternate base rate for the 2017 Term Loan was 3.00% per annum plus the greatest of the prime rate, the federal funds effective rate plus 0.50%, an adjusted LIBOR for a one-month interest period plus 1.00%, and 2.00%. The 2017 Term Loan required quarterly mandatory repayments of principal. During the nine months ended September 30, 2018, we made one mandatory repayment of $8.5 million and one voluntary prepayment of $17.0 million prior to the refinancing of the 2017 Term Loan.

Revolving Credit Facility. The 2016 Revolver consists of a non-extended tranche of approximately $58.8 million and an extended tranche of approximately $106.2 million. The non-extended tranche has a maturity date of February 9, 2021. The extended tranche has a maturity date of June 20, 2023, with a "springing" maturity date of November 10, 2022 if the 2018 Term Loan has not been repaid in full or otherwise extended to September 19, 2023 or later prior to November 10, 2022. We have the ability to draw down against the 2016 Revolver using a LIBOR-based interest rate or an alternate base rate. The LIBOR-based interest rate for a non-extended revolving loan is 4.00% per annum (subject to a leverage-based step-down) and for an extended revolving loan is 3.25% per annum (subject to a leverage-based step-down), in each case plus an adjusted LIBOR for a selected interest period. The alternate base rate for a non-extended revolving loan is 3.00% per annum (subject to a leverage-based step-down) and for an extended revolving loan is 2.25% per annum (subject to a leverage-based step-down), in each case plus the greatest of the prime rate, the federal funds rate plus 0.50% and an adjusted LIBOR or a one-month interest period plus 1.00%. We are also required to pay a commitment fee of 0.50% per annum (subject to a leverage-based step-down) to the lenders based on the average daily unused principal amount of the 2016 Revolver.

Senior Notes. The Senior Notes were issued at a price of 98.065% of par and have a maturity date of February 1, 2024. The Senior Notes bear interest at the rate of 10.875% per annum. We have the right to redeem all or part of the Senior Notes at any time for a premium which is based on the applicable redemption date. On January 30, 2017, we completed a registered exchange offer for the Senior Notes, as required under the registration rights agreement we entered into with the initial purchasers of the Senior Notes. All of the $350.0 million aggregate principal amount of the Senior Notes was validly tendered for exchange as part of this exchange offer. The registration rights agreement also obligated us to use reasonable efforts to cause to become effective a registration statement providing for the registration of certain secondary transactions in the Senior Notes by Goldman, Sachs & Co. and its affiliates. This registration statement became effective on December 29, 2016.

The Senior Credit Facilities have been fully and unconditionally guaranteed and secured by us and certain of our subsidiaries (including Constant Contact and its subsidiaries). The Senior Notes have been fully and unconditionally guaranteed, on a senior unsecured basis, by us and our subsidiaries that guarantee the Senior Credit Facilities.

As of September 30, 2018, we had cash and cash equivalents totaling $89.7 million and negative working capital of $290.5 million, which included the $31.6 million current portion of the 2018 Term Loan. There was no balance outstanding on the 2016 Revolver as of September 30, 2018. In addition, we had approximately $1,826.0 million of long term indebtedness, including deferred financing costs, outstanding under the 2018 Term Loan and the Senior Notes. We also had $477.0 million of short-term and long-term deferred revenue, which is not expected to be payable in cash.

Debt Covenants

Senior Credit Facilities

The Senior Credit Facilities require that we comply with a financial covenant to maintain a maximum ratio of consolidated senior secured indebtedness to Bank Adjusted EBITDA (as defined below).

The Senior Credit Facilities contain covenants that limit our ability to, among other things, incur additional debt or issue certain preferred shares; pay dividends on or make other distributions in respect of capital stock; make other restricted payments; make certain investments; sell or transfer certain assets; create liens on certain assets to secure debt; consolidate, merge, sell or otherwise dispose of all or substantially all of our assets; and enter into certain transactions with affiliates. These covenants are subject to a number of important limitations and exceptions. Additionally, the Senior Credit Facilities require us to comply with certain negative covenants and specify certain events of default that could result in amounts becoming payable, in whole or in part, prior to their maturity dates.

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With the exception of certain equity interests and other excluded assets under the terms of the Senior Credit Facilities, substantially all of our assets are pledged as collateral for the obligations under the Senior Credit Facilities.

Senior Notes

The indenture governing the Senior Notes contains covenants that limit our ability to, among other things, incur additional debt or issue certain preferred shares; pay dividends on or make other distributions in respect of capital stock; make other restricted payments; make certain investments; sell or transfer certain assets; create liens on certain assets to secure debt; consolidate, merge, sell or otherwise dispose of all or substantially all of our assets; and enter into certain transactions with affiliates. Upon a change of control as defined in the indenture, we or EIG Investors must offer to repurchase the Senior Notes at 101% of the aggregate principal amount thereof, plus accrued and unpaid interest, if any, up to, but not including, the repurchase date. These covenants are subject to a number of important limitations and exceptions.

The indenture also provides for events of default, which, if any of them occurs, may permit or, in certain circumstances, require the principal, premium, if any, interest and any other monetary obligations on all the then outstanding Senior Notes to be due and payable immediately.

We were in compliance with all covenants under the Senior Credit Facilities and the Senior Notes at September 30, 2018.

Secured Net Leverage Ratio

The Senior Credit Facilities require that we comply with a financial covenant to maintain a maximum ratio of consolidated senior secured net indebtedness on the date of determination to an adjusted consolidated EBITDA measure, which we refer to as "Bank Adjusted EBITDA", for the most recently completed four quarters (which we refer to as trailing twelve months, or "TTM"). This net leverage ratio is tested as of the last day of each fiscal quarter and was required to be at or below 6.50 to 1.00 through December 31, 2016 and at or below 6.25 to 1.00 from March 31, 2017 through December 31, 2017, and may not exceed 6.00 to 1.00 from March 31, 2018 and thereafter. As of September 30, 2018, we were in compliance with this covenant.

The credit agreement governing the Senior Credit Facilities defines consolidated senior secured net indebtedness as our and our restricted subsidiaries' aggregate amount of indebtedness that is secured by a lien not expressly subordinated to the liens securing the Senior Credit Facilities. Consolidated senior secured net indebtedness is determined on a consolidated basis in accordance with GAAP and consists only of indebtedness for borrowed money, unreimbursed obligations under letters of credit, obligations with respect to capital lease obligations and debt obligations evidenced by promissory notes and similar instruments, minus the aggregate amount of cash and permitted investments, excluding cash and permitted investments that are restricted.

The credit agreement defines Bank Adjusted EBITDA as net income (loss) adjusted to exclude, among other things, interest expense, income tax expense (benefit), depreciation and amortization. Bank Adjusted EBITDA also adjusts net income (loss) by excluding certain non-cash foreign exchange gains (losses), certain gains (losses) from sale of assets, stock-based compensation, unusual and non-recurring expenses (including acquisition related costs, gains or losses on early extinguishment of debt, and loss on impairment of tangible or intangible assets). It also adjusts net income (loss) for revenue on a billed basis, changes in deferred domain costs, share of loss (profit) of unconsolidated entities, and certain integration related costs. Finally, it adjusts net income (loss) to give pro forma effect to acquisitions, debt incurrences, repayments of debt, other specified transactions and certain cost savings on a TTM basis.

We use Bank Adjusted EBITDA to monitor our secured net leverage ratio and our ability to undertake key investing and financing functions such as making investments and incurring additional indebtedness, which may be prohibited by the covenants under our credit agreement unless we comply with certain financial ratios and tests.

Bank Adjusted EBITDA is a supplemental measure of our liquidity and is not presented in accordance with GAAP. Bank Adjusted EBITDA is not a measurement of our financial performance under GAAP and should not be considered an alternative to revenue, net income (loss), cash flow, or any other performance measure derived in accordance with GAAP. Our presentation of Bank Adjusted EBITDA may not be comparable with similarly titled measures of other companies.

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As of September 30, 2018, our secured net leverage ratio on a TTM basis was 4.04 to 1.00 and was calculated as follows:

	For the three months ended,
	December 31, 2017			March 31, 2018			June 30, 2018			September 30, 2018			TTM
	(in thousands except ratios)
Net (loss) income	$	7,473		$	(2,528	)	$	627		$	(6,335	)	$	(763	)
Interest expense	36,119			36,050			38,346			37,527			148,042
Income tax expense (benefit)	(28,665		)	(1,943		)	(946		)	11,715			(19,839		)
Depreciation	14,451			12,068			12,796			11,889			51,204
Amortization of other intangible assets	35,800			25,735			25,978			26,177			113,690
Stock-based compensation	11,252			6,992			7,390			7,550			33,184
Integration and restructuring costs	1,228			1,529			1,295			197			4,249
Transaction expenses and charges	—			—			—			—			—
(Gain) loss of unconsolidated entities	(38		)	27			(25		)	—			(36		)
Impairment of long-lived assets	17,012			—			—			—			17,012
Gain on assets, not ordinary course	—			—			—			—			—
Legal advisory and related expenses	1,994			10,501			710			(832		)	12,373
Billed revenue to GAAP revenue adjustment	(7,528		)	11,098			(2,431		)	(4,834		)	(3,695		)
Adjustment for domain registration cost on a cash basis	2,220			(1,222		)	1,258			1,299			3,555
Currency translation	19			(6		)	(17		)	(17		)	(21		)
Bank Adjusted EBITDA	$	91,337		$	98,301		$	84,981		$	84,336		$	358,955
Current portion of notes payable													31,606
Current portion of capital lease obligations													7,595
Notes payable - long term													1,792,436
Capital lease obligations - long term													2,067
Original issue discounts and deferred financing costs													55,960
Less:
Unsecured notes													(350,000		)
Cash													(89,674		)
Certain permitted restricted cash													(101		)
Net senior secured indebtedness													$	1,449,889
Net leverage ratio													4.04
Maximum net leverage ratio													6.00

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Cash and Cash Equivalents

As of September 30, 2018, our cash and cash equivalents were primarily held for working capital purposes and for required principal and interest payments under our indebtedness. A majority of our cash and cash equivalents was held in operating accounts. Our cash and cash equivalents increased by $23.2 million from $66.5 million at December 31, 2017 to $89.7 million at September 30, 2018. Of the $89.7 million cash and cash equivalents we had at September 30, 2018, $28.1 million was held in foreign countries, and due to tax and accounting reasons, we do not plan to repatriate this cash in the near future. We used cash on hand at December 31, 2017 and cash flows from operations to purchase property and equipment and to make our debt payments on our 2017 Term Loan and 2018 Term Loan, as described under "Financing Activities" below. Our future capital requirements will depend on many factors including, but not limited to our growth rate, our level of sales and marketing activities, the development and introduction of new and enhanced products and services, market acceptance of our solutions, potential settlements of legal proceedings, acquisitions, and our gross profits and operating expenses. We believe that our current cash and cash equivalents and operating cash flows will be sufficient to meet our anticipated working capital and capital expenditure requirements, as well as our required principal and interest payments under our indebtedness, for at least the next 12 months.

The following table shows our purchases of property and equipment, principal payments on capital lease obligations, depreciation, amortization and cash flows from operating activities, investing activities and financing activities for the stated periods:

	Nine Months Ended September 30,
	2017			2018
	(dollars in thousands)
Purchases of property and equipment	$	(32,095	)	$	(22,343	)
Principal payments on capital lease obligations	$	(5,679	)	$	(5,609	)
Depreciation	$	40,733		$	36,753
Amortization	$	113,252		$	86,118
Cash flows provided by operating activities	$	128,866		$	133,593
Cash flows used in investing activities	$	(33,769	)	$	(22,337	)
Cash flows used in financing activities	$	(80,983	)	$	(86,722	)

Capital Expenditures

Our capital expenditures on the purchase of property and equipment for the nine months ended September 30, 2017 and 2018 were $32.1 million and $22.3 million, respectively. The remaining balance payable on the capital leases is $9.7 million as of September 30, 2018. We expect our capital expenditures to increase in the near term as we continue to upgrade and replace data center assets as these assets reach an end of their useful life, and to a lesser extent, continue to implement our disaster recovery program.

Operating Activities

Cash provided by operating activities consists primarily of net income (loss) adjusted for certain non-cash items including depreciation, amortization, stock-based compensation expense and changes in deferred taxes, and the effect of changes in working capital, in particular in deferred revenue. As we add subscribers to our platform, we typically collect subscription fees at the time of initial billing and recognize revenue over the terms of the subscriptions. Accordingly, we generate operating cash flows as we collect cash from our subscribers in advance of delivering the related products and services, and we maintain a significant deferred revenue balance. As we add subscribers and sell additional products and services, our deferred revenue balance increases.

Net cash provided by operating activities increased from $128.9 million for the nine months ended September 30, 2017 to $133.6 million for the nine months ended September 30, 2018. This increase was primarily the result of improved working capital, which generated $13.7 million of additional cash flow, mainly due to the timing of vendor payments; lower interest payments of $8.1 million, primarily due to our term loan refinancings and to a reduction in our outstanding term loan balance due to mandatory and voluntary repayments; lower payments for restructuring expenses of $5.2 million; and other increases in working capital, primarily due to improved expense management. These increases were partially offset by our payment of $8.0 million to settle our SEC investigations, our payment of $5.7 million to purchase an interest rate cap to manage interest rate risk relating to our term loan, and lower subscriber billings due primarily to subscriber attrition in our non-strategic brands, which resulted in a lower increase in our deferred revenue of $11.5 million.

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Investing Activities

Cash flows used in investing activities consist primarily of the purchase of property and equipment, acquisition consideration payments, and changes in restricted cash balances.

During the nine months ended September 30, 2018, net cash used in investing activities was $22.3 million, which was used to purchase property and equipment.

During the nine months ended September 30, 2017, net cash used in investing activities was $33.8 million. We used $32.1 million to purchase property and equipment and $2.0 million to purchase intangible assets, which were partially offset by $0.3 million proceeds from the sale of assets.

Financing Activities

Cash flow from financing activities consists primarily of the net change in our overall indebtedness, payment of associated financing costs, payment of deferred consideration for our acquisitions and the issuance or repurchase of equity.

During the nine months ended September 30, 2018, cash flows used in financing activities was $86.7 million. We paid $1,656.1 million of principal payments related to our 2017 Term Loan and 2018 Term Loan, mainly as part of our 2018 term loan refinancing, from which we received net proceeds from the 2018 Term Loan of $1,580.3 million. Included in the $1,656.1 million were mandatory repayments of $24.3 million and voluntary prepayments of $51.5 million. We also made $5.6 million of principal payments related to capital lease obligations and $4.5 million of deferred consideration payments relating to our AppMachine B.V. subsidiary ("AppMachine"). In addition, we paid $1.6 million for deferred financing costs related to the 2018 refinancing. These payments were partially offset by $0.8 million of proceeds that we received from the exercise of stock options.

During the nine months ended September 30, 2017, cash flows used in financing activities was $81.0 million. We paid $1,733.1 million of principal payments related to our term loans, mainly as part of our 2017 term loan refinancing, from which we received net proceeds from the 2017 Term Loan of $1,693.0 million. In addition, we redeemed the balance of the non-controlling interest in our WZ (UK) Ltd. subsidiary for $25.0 million, made $5.7 million of principal payments related to capital lease obligations, paid an aggregate of $5.4 million in deferred consideration for our final deferred payment for Mojoness, Inc. and for the first deferred payment for AppMachine, and paid $6.3 million of deferred financing costs related to the 2017 refinancing. These payments were partially offset by $1.5 million of proceeds that we received from the exercise of stock options.

Free Cash Flow

Free cash flow, or FCF, is a non-GAAP financial measure that we calculate as GAAP cash flow from operations less capital expenditures and capital lease obligations. We believe that FCF provides investors with an indicator of our ability to generate positive cash flows after meeting our obligations with regard to capital expenditures (including capital lease obligations).

The following table reflects the reconciliation of cash flow from operations to free cash flow (all data in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2018			2017			2018
Cash flow from operations	$	46,444		$	51,341		$	128,866		$	133,593
Less:
Capital expenditures and capital lease obligations(1)	(14,571		)	(10,662		)	(37,774		)	(27,952		)
Free cash flow	$	31,873		$	40,679		$	91,092		$	105,641

(1) Capital expenditures during the three and nine months ended September 30, 2017 includes $1.8 million and $5.7 million, respectively, of principal payments under a three year capital lease for software. Capital expenditures during the three and nine months ended September 30, 2018 includes $1.7 million and $5.6 million, respectively, of principal payments under a three year capital lease for software. The remaining balance on the capital lease is $9.7 million as of September 30, 2018.

Free cash flow increased by $8.8 million from $31.9 million for the three months ended September 30, 2017 to $40.7 million for the three months ended September 30, 2018. Free cash flow was favorably impacted by reduced capital expenditures and capital lease obligations of $3.9 million, reduced restructuring expenses of $2.9 million and improved working capital of $11.5 million, mainly due to the timing of certain payments to vendors. These improvements were partially

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offset by lower revenue and lower subscriber billings, which led to a lower increase in deferred revenue of $3.2 million and lower profitability, mainly due to declines in revenue.

Free cash flow increased by $14.5 million from $91.1 million for the nine months ended September 30, 2017 to $105.6 million for the nine months ended September 30, 2018. Please refer to the "Liquidity and Capital Resources - Operating Activities" section above for a discussion of the main changes in cash flow provided by operating activities. In addition, free cash flow was favorably impacted by reduced capital expenditures and capital lease obligations of $9.8 million.

Net Operating Loss (NOL) Carry-forwards

As of December 31, 2017, we had NOL carry-forwards available to offset future U.S. federal taxable income of approximately $236.3 million and future state taxable income of approximately $168.3 million. These NOL carry-forwards expire on various dates through 2037.

As of December 31, 2017, we had NOL carry-forwards in foreign jurisdictions available to offset future foreign taxable income by approximately $26.7 million. We have loss carry-forwards that begin to expire in 2021 in China totaling $0.7 million. We have loss carry-forwards that begin to expire in 2020 in the Netherlands totaling $12.6 million. We also have loss carry-forwards in the United Kingdom and Singapore of $13.2 million and $0.2 million, respectively, which have an indefinite carry-forward period.

Utilization of the NOL carry-forwards may be subject to an annual limitation due to the ownership percentage change limitations under Section 382 of the Internal Revenue Code (“Section 382 limitation”). Ownership changes can limit the amount of net operating loss and other tax attributes that a company can use each year to offset future taxable income and taxes payable. Although we have experienced a number of ownership changes over time, we do not currently have any Section 382 limitations on our ability to utilize NOL carry-forwards.

Contractual Obligations and Commitments

There have been no significant changes in our contractual obligations from those disclosed in our Annual Report on Form 10-K filed with the SEC on February 22, 2018, except as it relates to our long-term debt obligations. The following table summarizes these debt-related contractual obligations as of September 30, 2018:

	Payments due by period
	Total		Less than 1 year		1-3 years		3-5 years		More than 5 years
	(in thousands)
Long-term debt obligations:
Principal payments on term loan facility and notes	$	1,880,002	$	31,606	$	63,212	$	63,212	$	1,721,972
Total principal payments relating to our long-term debt obligations	$	1,880,002	$	31,606	$	63,212	$	63,212	$	1,721,972

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Recently Issued Accounting Pronouncements

For information on recent accounting pronouncements, see Recent Accounting Pronouncements in the notes to the consolidated financial statements appearing in Part I, Item 1 of this Quarterly Report on Form 10-Q.

Off-Balance Sheet Arrangements

We do not have any special purpose entities or off-balance sheet arrangements.

Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Quantitative and Qualitative Disclosure About Market Risk

We have operations both within the United States and internationally, and we are exposed to market risk in the ordinary course of our business. These risks include primarily foreign exchange risk, interest rate and inflation.

Foreign Currency Exchange Risk

A significant majority of our subscription agreements and our expenses are denominated in U.S. dollars. We do, however, have sales in a number of foreign currencies as well as business operations in Brazil and India and are subject to the impacts of currency fluctuations in those markets. The impact of these currency fluctuations is insignificant relative to the overall financial results of our company.

Interest Rate Sensitivity

We had cash and cash equivalents of $89.7 million at September 30, 2018, the majority of which was held in operating accounts for working capital purposes and other general corporate purposes, which includes payment of principal and interest under our indebtedness. As of September 30, 2018, we had approximately $1,530.0 million outstanding under our 2018 Term Loan, $350.0 million outstanding under the Senior Notes and $0.0 million outstanding under the 2016 Revolver.

The 2018 Term Loan automatically bears interest at the bank’s reference rate unless we give notice to opt for the LIBOR-based interest rate. The LIBOR-based interest rate for a term loan is 3.75% per annum plus the greater of an adjusted LIBOR and 1.00%. The reference rate for a term loan is 2.75% per annum plus the greatest of the prime rate, the federal funds effective rate plus 0.50%, an adjusted LIBOR for a one-month interest period plus 1.00%, or 2.00%.

We have the ability to draw down against the 2016 Revolver using a LIBOR-based interest rate or an alternate base rate. The LIBOR-based interest rate for a non-extended revolving loan is 4.00% per annum (subject to a leverage-based step-down) and for an extended revolving loan is 3.25% per annum (subject to a leverage-based step-down), in each case plus an adjusted LIBOR for a selected interest period. The alternate base rate for a non-extended revolving loan is 3.00% per annum (subject to a leverage-based step-down) and for an extended revolving loan is 2.25% per annum (subject to a leverage-based step-down), in each case plus the greatest of the prime rate, the federal funds rate plus 0.50% and an adjusted LIBOR or a one-month interest period plus 1.00%. We are also required to pay a commitment fee of 0.50% per annum (subject to a leverage-based step-down) to the lenders based on the average daily unused principal amount of the 2016 Revolver.

Based on our aggregate indebtedness outstanding under our 2018 Term Loan of $1,530.0 million as of September 30, 2018, a 100 basis point increase in the adjusted LIBOR above the LIBOR floor would result in a $15.7 million increase in our aggregate interest payments over a 12-month period, and a 100 basis point decrease at the current LIBOR rate would result in a $15.7 million decrease in our interest payments.

We have entered into two interest rate caps as part of our risk management strategy. The three-year interest rate cap we entered into in December 2015 limits our exposure beginning on February 29, 2016 to interest rate increases over 2.0% on $500.0 million of our 2018 Term Loan (and prior to June 20, 2018, our 2017 Term Loan). The three-year interest rate cap we entered into in June 2018 limits our exposure beginning on August 28, 2018 to interest rate increases over 3.0% on $800.0 million of our 2018 Term Loan. The interest rate applicable to our 2018 Term Loan as of September 30, 2018 was approximately 2.31%.

Inflation Risk

We do not believe that inflation has a material effect on our business, financial condition or results of operations. If our costs were to become subject to significant inflationary pressures, we may not be able to fully offset such higher costs through price increases. Our inability to do so could harm our business, financial condition and results of operations.

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Item 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

As of September 30, 2018, our management, with the participation of our chief executive officer and chief financial officer, evaluated the effectiveness of our disclosure controls and procedures. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Based upon that evaluation of our disclosure controls and procedures as of September 30, 2018, our chief executive officer and chief financial officer concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

Changes in Internal Control over Financial Reporting

During the three months ended September 30, 2018, there has not been any change in our internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

From time to time we are involved in legal proceedings or subject to claims arising in the ordinary course of our business. We are not presently involved in any such legal proceeding or subject to any such claim that, in the opinion of our management, would have a material adverse effect on our business, operating results or financial condition. However, the results of such legal proceedings or claims cannot be predicted with certainty, and regardless of the outcome, can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors. Neither the ultimate outcome of the Machado and McGee shareholder litigation matters listed below nor an estimate of any probable losses or any reasonably possible losses (other than the reserves specifically discussed below) can be assessed at this time.

Endurance

We received a subpoena dated December 10, 2015 from the Boston Regional Office of the SEC, requiring the production of certain documents, including, among other things, documents related to our financial reporting, including operating and non-GAAP metrics, refund, sales and marketing practices and transactions with related parties. On June 5, 2018, we announced that we had settled both this investigation and the Constant Contact investigation discussed below by consenting to the SEC's entry of a cease and desist order (the "Order"), without admitting or denying the SEC's findings set forth in the Order, and by paying a civil monetary penalty. We accrued the penalty in our fiscal quarter ended September 30, 2017 and paid the penalty in the fiscal quarter ended June 30, 2018.

On May 4, 2015, Christopher Machado, a purported holder of our common stock, filed a civil action in the United States District Court for the District of Massachusetts against us and our former chief executive officer and our former chief financial officer, captioned Machado v. Endurance International Group Holdings, Inc., et al., Civil Action No. 1:15-cv-11775-GAO. The plaintiff filed an amended complaint on December 8, 2015, and a second amended complaint on March 18, 2016. We moved to dismiss the second amended complaint, but before the court ruled on our motion, with our assent, the plaintiff filed a third amended complaint on June 30, 2017. In the third amended complaint, plaintiffs Christopher Machado and Michael Rubin allege claims for violations of Section 10(b) and 20(a) of the Exchange Act, and Sections 11, 12(a)(2), and 15 of the Securities Act, on behalf of a purported class of purchasers of our securities between October 25, 2013 and December 16, 2015, including persons or entities who purchased or acquired our shares pursuant or traceable to the registration statement and prospectus issued in connection with our October 25, 2013 initial public offering. The plaintiffs challenge as false or misleading certain of our disclosures about the total number of subscribers, average revenue per subscriber, the number of customers paying over $500 per year for our products and services, and the average number of products sold per subscriber. The plaintiffs seek, on behalf of themselves and the purported class, compensatory damages, rescissory damages as to class members who purchased shares pursuant to the offering and the plaintiffs' costs and expenses of litigation. We moved to dismiss the third amended complaint on August 29, 2017. The plaintiffs' memorandum in opposition to our motion to dismiss was filed on October 30,

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2017, and our reply memorandum was filed on December 14, 2017. On January 12, 2018, the parties filed a joint motion to stay all proceedings pending the outcome of a mediation between the parties scheduled for February 23, 2018. The court granted the stay on February 21, 2018. The parties did not resolve the matter at the mediation on February 23, 2018, but continued thereafter to productively discuss a potential resolution of this matter. The court extended the stay to allow the parties to continue their discussions. On May 17, 2018, the parties executed a term sheet memorializing their agreement in principal to settle the action. The parties then negotiated the terms and conditions of a stipulation and agreement of settlement and related papers, which provide for the release of all claims asserted against us and our former chief executive officer and our former chief financial officer. On July 6, 2018, the plaintiffs filed an unopposed motion seeking preliminary approval of the proposed settlement, certification of the proposed settlement class for settlement purposes only, and approval of notice to the settlement class. The court has not yet ruled on this motion. Our contribution to the settlement pool under the proposed settlement would be approximately equal to the amount we reserved in connection with a possible settlement of this action. The aggregate amount of this reserve and the reserve for the Constant Contact McGee litigation discussed below was originally $8.5 million recorded during the three months ended March 31, 2018, and subsequently adjusted to $8.3 million during the three months ended June 30, 2018 and to $7.3 million during the three months ended September 30, 2018. We cannot make any assurances as to whether or when the settlement will be approved by the court.

Constant Contact

On December 10, 2015, Constant Contact received a subpoena from the Boston Regional Office of the SEC, requiring the production of documents pertaining to Constant Contact’s sales, marketing, and customer retention practices, as well as periodic public disclosure of financial and operating metrics. As discussed above, on June 5, 2018, we announced that we had settled both this investigation and the Endurance investigation discussed above by consenting to the SEC's entry of the Order, without admitting or denying the SEC's findings set forth in the Order, and by paying a civil monetary penalty. We accrued the penalty in our fiscal quarter ended September 30, 2017 and paid the penalty in the fiscal quarter ended June 30, 2018.

On August 7, 2015, a purported class action lawsuit, William McGee v. Constant Contact, Inc., et al, was filed in the United States District Court for the District of Massachusetts against Constant Contact and two of its former officers. An amended complaint, which named an additional former officer as a defendant, was filed December 19, 2016. The lawsuit asserts claims under Sections 10(b) and 20(a) of the Exchange Act, and is premised on allegedly false and/or misleading statements, and non-disclosure of material facts, regarding Constant Contact’s business, operations, prospects and performance during the proposed class period of October 23, 2014 to July 23, 2015. The parties mediated the claims on March 27, 2018, and as a result of that mediation reached an agreement in principle with the lead plaintiff to settle the action. The parties then negotiated the terms and conditions of a stipulation and agreement of settlement and related papers, which provide for the release of all claims asserted against Constant Contact and its former officers. On May 18, 2018, the plaintiffs filed an unopposed motion seeking preliminary approval of the proposed settlement, certification of the proposed settlement class for settlement purposes only, and approval of notice to the settlement class. The court has not yet ruled on this motion. Our contribution to the settlement pool under the proposed settlement would be approximately equal to the amount we reserved in connection with a possible settlement of this action. The aggregate amount of this reserve and the reserve for the Endurance Machado litigation discussed above was originally $8.5 million recorded during the three months ended March 31, 2018, and subsequently adjusted to $8.3 million during the three months ended June 30, 2018 and to $7.3 million during the three months ended September 30, 2018. We cannot make any assurances as to whether or when the settlement will be approved by the court.

ITEM 1A. Risk Factors

Our business, financial condition, results of operations and future growth prospects could be materially and adversely affected by the following risks or uncertainties. The risks and uncertainties described below are those that we have identified as material, but they are not the only risks and uncertainties we face. Our business is also subject to general risks and uncertainties that affect many other companies, including overall economic and industry conditions, as well as other risks not currently known to us or that we currently consider immaterial. If any of such risks and uncertainties actually occurs, our business, financial condition, results of operations and growth prospects could differ materially from the plans, projections and other forward-looking statements included in the section titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and elsewhere in this Quarterly Report on Form 10-Q and in our other public filings.

Risks Related to Our Business and Our Industry

We may not be able to add new subscribers, retain existing subscribers or increase sales to existing subscribers, which could adversely affect our operating results.

Our growth is dependent on our ability to continue to attract and acquire new subscribers while retaining existing subscribers and expanding the products and services we sell to them. Growth in the demand for our products and services may be inhibited, and we may be unable to grow our subscriber base, for a number of reasons, including, but not limited to:

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• our failure to develop or offer new or enhanced products and services in a timely manner that keeps pace with new technologies, competitor offerings and the evolving needs of our subscribers;

• difficulties providing or maintaining a high level of subscriber satisfaction, which could cause our existing subscribers to cancel their subscriptions or stop referring prospective subscribers to us;

• increases in our subscriber churn rates or our failure to convert subscribers from introductory, discounted products to full priced solutions;

• perceived or actual security, availability, integrity, privacy, reliability, quality or compatibility problems with our solutions, including related to unscheduled downtime, outages or network security breaches;

• our inability to maintain awareness of our brands, including due to fragmentation of our marketing efforts due to our historical approach of maintaining a portfolio of multiple brands rather than focusing our resources on a single brand or a few brands;

• continued or increased competition in the SMB market, including greater marketing efforts or investments by our competitors in advertising and promoting their brands or in product development;

• changes in search engine ranking algorithms or in search terms used by potential subscribers; or

• our inability to market our solutions in a cost-effective manner to new subscribers or to our existing subscribers due to changes in regulation, or changes in the enforcement of existing regulation, that would affect our marketing or pricing practices.

Our total subscriber base decreased during the twelve months ended September 30, 2018, and we expect that it will continue to decrease in the foreseeable future. Key factors contributing to the decrease in our subscriber base are discussed in Part I, Item 2 - Management’s Discussion and Analysis of Financial Condition and Results of Operations. If we are not successful in addressing these factors or the other factors listed above, we may not be able to return to or maintain positive subscriber growth in the future, which could have a material adverse effect on our business and financial results.

We must keep up with rapid and ongoing technological change, marketing trends and shifts in consumer demand to remain competitive in a rapidly evolving industry.

The cloud-based technology and online marketing tool industries are characterized by rapid and ongoing technological change, frequent new product and service introductions and evolving industry standards. The manner in which we market to our subscribers and potential subscribers must keep pace with technological change, legal requirements, market trends, and shifts in how our solutions are found, purchased and used by subscribers. For example, application marketplaces, mobile platforms, advertising and marketing efforts by competitors, and new search engines and search methods are changing the way consumers find, purchase and use our solutions. Our future success will depend on our ability to adapt to rapidly changing technologies, to adapt our solutions and marketing practices to evolving industry standards and to anticipate subscriber needs and preferences. If we are not able to offer compelling and innovative solutions, take advantage of new technology, make our products effective for access and use on mobile devices, adapt our marketing practices or anticipate changing trends, we may be unable to continue to attract new subscribers or sell additional solutions to our existing subscribers. In addition, if existing technologies or systems, such as the domain name system which directs traffic on the Internet, become obsolete, or if we fail to anticipate and manage technologies that prevent or harm our offerings, such as technology intended to block email marketing, our revenue and operating results may be adversely affected.

We face significant competition for our solutions in the SMB market, which we expect will continue to intensify. As a result of such competitive pressures, we may not be able to maintain or improve our competitive position or market share.

The SMB market for cloud-based technologies and online marketing tools is highly competitive and constantly evolving. We expect competition to increase from existing competitors as well as potential new market entrants. Some of our competitors have greater marketing, engineering, product development and other resources, more brand recognition and consumer awareness, more diversified or better integrated product offerings, greater international scope or larger subscriber bases than we do, or may partner with large Internet companies that can offer these resources. As a result, we may not be able to compete successfully against them.

We have faced and expect to continue to face competition in our web presence and domain segments, both domestically and internationally, from competitors in the domain, hosting and website builder markets such as GoDaddy, 1 and 1, Wix, Squarespace, Weebly, Web.com and Wordpress.com, as well as from large companies like Amazon, Microsoft and Google, which offer web hosting or website builders, domain registration and other cloud-based services, and eBay and Facebook, which offer Internet marketing platforms. For our email marketing segment, we expect continued competition from MailChimp and other SMB-focused lower-cost email marketing vendors, as well as additional competition from providers of marketing automation software and larger companies such as Microsoft.

We believe that our business has been, and may continue to be, affected by changes in the behavior of consumers when searching for web presence and marketing solutions. In particular, consumers have increasingly been searching for these solutions using brand related search terms as opposed to unbranded search terms, such as hosting, website builders or email

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marketing. We believe this trend has benefited competitors who have invested more heavily in, and used a broader array of marketing channels in, building consumer awareness of their brand than we have. In addition, global searches for specific products such as “cloud hosting,” "logos" and “e-commerce,” are growing, which we believe has benefited competitors who market more heavily in these and other specific product areas.

There are also relatively few barriers to entry in this market, especially for providers of niche services, which often have low capital and operating expenses and the ability to quickly bring products that meet specific subscriber needs to market. Accordingly, as this market continues to develop, the number of competitors may increase. The continued entry of competitors into the markets for cloud-based technologies and online marketing tools, and the rapid growth of some competitors that have already entered these markets, have made and may continue to make it difficult for us to maintain our market position.

In addition, in an attempt to gain market share, competitors have and may continue to offer more aggressive price discounts or alternative pricing models, such as “freemium” pricing in which a basic offering is provided for free with advanced features provided for a fee, on the services they offer, bundle several services at reduced prices, or increase commissions paid to their referral sources. These pricing pressures have in the past required and may continue to require us to match these discounts and commissions in order to remain competitive, which could reduce our margins or cause us to fail to attract new subscribers that decide to purchase the discounted service offerings of our competitors.

Our business and operations have become increasingly complex over the past several years due to acquisitions and organizational change, which has and may continue to result in operational and other challenges.

As a result of acquisitions and internal growth, we increased our revenue from $629.8 million in the year ended December 31, 2014 to $1.2 billion in the year ended December 31, 2017. During this time period, we completed numerous acquisitions, including the acquisition of the Directi web presence business in January 2014, which significantly expanded our international operations, and the acquisition of Constant Contact in February 2016.

Due to our history of acquisitions, we offer our products and services through numerous brands that operate from different websites, control panels, billing systems, information technology and other systems. As a result, compliance assessments, compliance-related changes, roll-outs of new products and product and technology upgrades, and changes in business processes often need to be implemented more than once. This level of complexity has sometimes resulted and may continue to result in difficulties maintaining effective internal controls, additional compliance costs and risks, product roll-out inefficiencies, and other operational challenges.

In particular, differences across our multiple billing systems have at times made it challenging for us to accurately and consistently determine certain enterprise-wide operational metrics, such as total subscribers. Total subscribers and other operational metrics, which we voluntarily disclose, historically have not been subject to the same level of reporting controls as our financial statements and other financial information we are required to disclose. Also, we have identified in the past, and may in the future identify, errors or bugs in the systems we use to generate operational metrics. We are working to improve our controls and processes for total subscribers and other operational metrics, but errors with respect to these metrics could still occur. In addition, as a public company, we are required by the Sarbanes-Oxley Act of 2002 to maintain, evaluate, test and document internal controls over financial reporting, and our multiple brands and systems make this process more complicated and costly than it would be otherwise. Any errors, delays, inconsistencies in data reporting, or similar challenges could negatively impact our business decisions, impede our ability to produce accurate financial statements on a timely basis, or otherwise lead to inaccurate disclosure, which could harm our operating results, our ability to operate our business and our investors’ view of us.

In 2018, we are making significant investments to improve our customer experience and better integrate our business. Although we believe that these investments will position us for growth in the future, we will recognize most of the costs associated with these investments earlier than most of the anticipated benefits, and the return on these investments may be lower or may develop more slowly than we expect. If we do not achieve the benefits anticipated from these investments, if the achievement of these benefits is delayed, if we are otherwise not successful in simplifying our business or in managing our complexity effectively, our operating results may be negatively affected.

Our growth will be adversely affected if we cannot continue to successfully retain, hire, train and manage our key employees.

Our ability to successfully pursue our growth strategy will depend on our ability to attract, retain and motivate key employees across our business, particularly engineering and development employees and our senior executive team.

Our engineering and development team has undergone several management transitions and a significant amount of organizational change in recent years. These changes, combined with high demand from other technology companies for skilled engineering and technical employees, have made and may continue to make it more challenging to retain key employees or hire replacements if they leave. In addition, candidates making employment decisions, particularly in high-technology industries, often consider the value of any equity they may receive from prospective employers. As a result, any significant volatility in the

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market price of our common stock, or concerns by potential employees about the performance of our stock, may also contribute to these challenges.

We are also limited in our ability to recruit global talent for our U.S. offices by U.S. immigration laws, and the regulatory environment related to immigration under the current presidential administration may increase the likelihood that immigration laws may be modified in a way that further limits our ability to recruit globally.

Our current executives are not contractually obligated to remain employed by us and may leave at any time. The loss of any of these individuals could significantly delay or prevent the achievement of, or make it more difficult for us to pursue and execute on, our business objectives.

Our inability to attract and retain qualified individuals could have an adverse effect on our ability to carry out our business plans and objectives and, as a result, our ability to compete could decrease and our operating results could suffer.

We have experienced system, software, Internet, data center, network, and customer support center failures and have not yet implemented a complete disaster recovery plan or a business continuity plan, and any interruptions, delays or failures in our services could harm our reputation, cause us to lose subscribers, or result in unanticipated costs.

We must be able to maintain and operate our applications and systems without interruption. Since our ability to retain and attract subscribers depends on the performance, reliability and availability of our services, as well as in the delivery of our products and services to subscribers, even minor interruptions in our service or losses of data could harm our reputation, particularly if they frequently reoccur. Our applications, network, systems, equipment, power supplies, customer support centers and data centers are subject to various points of failure, including: human error or accidents; improper maintenance and change control; Internet connectivity downtime or disruptions in connectivity between and among systems; computer viruses; physical or electronic security breaches; inadequate systems monitoring; intentional bad acts such as sabotage, vandalism or terrorism; and natural disasters.

We have experienced system failures, delays and periodic interruptions in service, or outages, due to factors such as power outages and network equipment, storage system, and network configuration failures. In addition, we have experienced outages or other disruptions in the course of ongoing maintenance or when new versions, enhancements and updates to applications, software or systems are released by us or third parties. We may experience future outages that disrupt the operation of our solutions due to these or other factors.

Our systems supporting our web presence and domain segments are not fully redundant, and we have not yet implemented a complete and tested disaster recovery plan or a business continuity plan. Although the redundancies we do have in place will permit us to respond, at least to some degree, to failures of applications and systems, our data centers are vulnerable in the event of failure. Most of our web presence subscribers, and a significant portion of our domain subscribers, are hosted across five U.S.-based data centers, one of which is owned by us and the rest of which are co-located, and accordingly, any failure or downtime in these data center facilities would affect a significant percentage of our subscribers. While we have a disaster recovery system that covers most of our email marketing subscribers, this system may not be able to recover all data and services in the event of a significant outage. We do not yet have adequate structures or systems in place to recover from a data center’s severe impairment or total destruction, and recovery from the total destruction or severe impairment of any of our major data centers would be extremely difficult and may not be possible at all. Closing any of these data centers without adequate notice could result in lengthy, if not permanent, interruptions in the availability of our solutions and loss of vast amounts of subscriber data.

Our data centers are also susceptible to impairment resulting from electrical power outages due to the amount of power and cooling they require to operate. Since we rely on third parties to provide our data centers with power sufficient to meet our needs, we cannot control whether our data centers will have an adequate amount of electrical resources necessary to meet our subscriber requirements. We attempt to limit exposure to system downtime due to power outages by using backup generators and power supplies. However, these protections may not limit our exposure to power shortages or outages entirely. We also rely on third parties to provide Internet connectivity to our data centers. If the connectivity these parties provide is discontinued, disrupted, or does not provide adequate data transmission capacity, our ability to provide services to our subscribers could be compromised.

Our customer support centers are also vulnerable in the event of failure caused by total destruction or severe impairment. The teams in each customer support center are trained to provide brand-specific support services for a discrete subset of our brands, which, along with staffing constraints and differences in software systems between our brands, limits our ability to re-route calls, email and chat from one customer support center to another customer support center. Accordingly, if any of our customer support centers (particularly one of our primary support centers, such as our Arizona, Colorado, Massachusetts or Texas centers or our third-party India and Philippines centers) were to be impaired or destroyed, our ability to re-route calls, email and chat to operational customer support centers or to provide the type of customer support services that the non-operational customer support center had provided to subscribers of a particular brand or brands may be limited.

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Any of these events could materially increase our expenses or reduce our revenue, damage our reputation, cause our subscribers to seek reimbursement for services paid for and not received, cause our subscribers to stop referring new subscribers to us, and cause us to lose current and potential subscribers, which would have a material adverse effect on our operating results and financial condition. Moreover, the property and business interruption insurance we carry may not have adequate coverage to compensate us fully for losses that may occur.

If we are unable to achieve or maintain a high level of subscriber satisfaction, demand for our solutions could suffer.

We believe that our future revenue growth depends on our ability to provide subscribers with quality service that meets our stated commitments, meets or exceeds our subscribers’ evolving needs and expectations and is conducive to our ability to continue to sell new solutions to existing subscribers. We are not always able to provide our subscribers with this level of service, and our subscribers occasionally encounter interruptions in service and other technical challenges, including as a result of outages, errors or bugs in our software or third-party software, human error, or migrations of subscribers as part of internal platform consolidation efforts. If we are unable to achieve or maintain a high level of subscriber satisfaction, we could experience higher subscriber churn, lower than expected renewal rates, disputes and litigation, or negative publicity, any of which could have a negative effect on our business, financial condition and operating results.

In addition, we may from time to time fail to meet the needs of specific subscribers in order to best meet the service expectations of our overall subscriber base. For example, we may suspend a subscriber’s website when it breaches our terms of service, harms other subscribers’ websites or disrupts servers supporting those websites, such as when a cybercriminal installs malware on a subscriber’s website without that subscriber’s authorization or knowledge. Although such service interruptions are not uncommon in a cloud-based or online environment, we risk subscriber dissatisfaction by interrupting one subscriber’s service to prevent further attacks on or data breaches for other subscribers, and this could damage our reputation and have an adverse effect on our business.

Security and privacy incidents or fraud may harm our business.

We collect, handle, store and transmit large amounts of sensitive, confidential, personal and proprietary information, including payment card information and information we receive from or maintain on behalf of our subscribers. Unauthorized access to, use of, or loss of this type of information and any compromise of our systems may cause damage to our platforms, service interruptions to our subscribers, loss of subscriber websites and data, harm our reputation and result in increased security costs, distraction of our management team, litigation, regulatory investigations or other liabilities. These type of incidents can result from numerous sources, including: physical or electronic security breaches; viruses, ransomware or other malware; hardware vulnerabilities such as Meltdown and Spectre; accident or human error by our own personnel or those of our partners; criminal activity or malfeasance (including by our own personnel); fraud or impersonation scams perpetrated against us; or security events impacting our third-party service providers. We have experienced security events such as these in the past and expect they will continue in the future. To date, we do not believe that any of these events has had a material effect on us, but we may experience larger and more serious incidents in the future.

In addition, many states and countries in which we have subscribers have enacted regulations requiring us to notify subscribers in the event that certain subscriber information is accessed or acquired, or believed to have been accessed or acquired, without authorization, and in some cases also develop proscriptive policies to protect against such unauthorized access or acquisition. Such notifications can result in private causes of action being filed against us, or government investigations into the adequacy of security controls or handling of any security event. Should we experience a loss of protected data, efforts to respond to the incident and enhance our controls, as well as potential penalties imposed by regulators, could increase our costs.

Organizations generally, and Internet-based organizations in particular, remain vulnerable to targeted attacks aimed at exploiting network and system applications or weaknesses. Techniques used to obtain unauthorized access to, or to sabotage, networks and systems often are not recognized until launched against a target. Cyber criminals are increasingly using powerful new tactics including evasive applications, proxies, tunneling, encryption techniques, vulnerability exploits, buffer overflows, distributed denial of service attacks, or DDoS attacks, botnets and port scans. For example, we are frequently the targets of DDoS attacks in which attackers attempt to block access to our websites or our subscribers' websites, as well as attempts to place illegal or abusive content on our or our subscribers' websites. If we are unable to avert a DDoS or other attack for any significant period, we could sustain substantial revenue loss from lost sales and subscriber dissatisfaction.

While we have dedicated resources to overall information and cybersecurity risk management, our program has not reached a level of operational maturity to anticipate and proactively address the cyber risks that we face. We may not have the resources or technical sophistication to anticipate or prevent rapidly evolving types of cyber-attacks. Moreover, we may not be able to immediately detect that such an attack has been launched, if, for example, unauthorized access to our systems was obtained without our knowledge in preparation for an attack contemplated to commence in the future. Cyber-attacks may target us, our subscribers, our partners, banks, credit card processors, delivery services, e-commerce in general or the communication infrastructure on which we depend. We also rely on third parties to provide physical security for most of our data centers and

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other facilities. Any physical security breach to our data centers or other facilities could result in unauthorized access or damage to our systems.

Our employees, including our employee and contract support agents are often targeted by, and may be vulnerable to, e-mail scams, phishing, social media or similar attacks, as well as social engineering tactics used to perpetrate fraud. We have experienced and may in the future experience security attacks that cause our support agents to divulge confidential information about us or our subscribers, or to introduce viruses, worms or other malicious software programs onto their computers, allowing the perpetrators to, among other things, gain access to our systems or our subscribers’ accounts. Our subscribers have in the past, and may in the future, use weak passwords, accidentally disclose their passwords or store them on a mobile device that is lost or stolen, or otherwise compromise or fail to ensure the security of their data, creating the perception that our systems are not secure against third-party access when their accounts are compromised and used maliciously by third parties. In addition, if third parties with which we work, such as vendors, partners or developers, violate applicable laws or our policies or disclose our confidential information due to human error or technical issues, such violations or incidents may also put our information and our subscribers’ information at risk and could in turn have an adverse effect on our business and reputation.

If an actual or perceived security breach occurs, the market’s perception of our security measures could be harmed and we could lose sales and current and potential subscribers. We might also be required to expend significant capital and resources to investigate, protect against or address these problems. Any significant violations of data security could result in the loss of business, litigation and regulatory investigations and penalties that could damage our reputation and adversely affect our operating results and financial condition. Furthermore, if a high profile security breach occurs with respect to another provider of cloud-based technologies or online marketing tools, our subscribers and potential subscribers may lose trust in the security of these business models generally, which could harm our ability to retain existing subscribers or attract new ones. We cannot guarantee that any backup systems, regular data backups, security protocols, network protection mechanisms and other procedures currently in place, or that may be in place in the future, will be adequate to prevent network and service interruption, system failure, damage to one or more of our systems or data loss in the event of a security breach or attack on our network.

If we do not maintain a low rate of credit card chargebacks, protect against breach of the credit card information we store and comply with payment card industry standards, we will face the prospect of financial penalties and could lose our ability to accept credit card payments from subscribers, which would have a material adverse effect on our business, financial condition and operating results.

A majority of our revenue is processed through credit card transactions. Under current credit card industry practices, we are liable for fraudulent and disputed credit card transactions because we do not obtain the cardholder’s signature at the time of the transaction, even though the financial institution issuing the credit card may have authorized the transaction. Although we focus on keeping our rate of credit card refunds and chargebacks low, if our refunds or chargebacks increase, our credit card processors could require us to maintain or increase reserves, increase our processing fees, impose fines, terminate their contracts with us or decline to serve as credit card processors for new joint ventures or brands, which would have an adverse effect on our financial condition.

We could also incur significant fines or lose our ability to process payments using credit cards if we fail to follow payment card industry data security standards, or PCI DSS, even if there is no compromise of subscriber information. During the course of compliance reviews during 2016, we discovered control gaps in our current adherence to the PCI DSS 3.2 standard. Although we are in the process of remediating these gaps, if we are unable to complete the remediation process in a timely manner, we may incur financial penalties, our payment networks may increase the processing fees they charge to us, or we may lose our ability to process credit cards, any of which could have a material adverse effect on our financial results. In addition, we may have difficulty negotiating competitive rates with payment networks for as long as the control gaps remain.

Our failure to limit fraudulent transactions conducted on our websites (such as through the use of stolen credit card numbers) below levels consistent with credit card association guidelines has sometimes resulted, and may in the future result, in third-party audit requirements and additional expense to change our processes to reduce fraud. It could also subject us to liability or require us to increase reserves with our credit card processors. Under credit card association rules, penalties may be imposed at the discretion of the association. Any such potential penalties would be imposed on our credit card processors by the credit card association. Under our contracts with our credit card processors, we are required to reimburse the credit card processors for such penalties. Although we believe that our current level of fraud monitoring is adequate, we face the risk that we may fail to maintain an adequate level of fraud monitoring in the future, or that one or more credit card associations may, at any time, assess penalties against us or terminate our ability to accept credit card payments from subscribers, which would have a material adverse effect on our business, financial condition and operating results.

In addition, we could be liable if there is a breach of the credit card or other payment information we store. Online commerce and communications depend on the secure transmission of confidential information over public networks. We rely on encryption and authentication technology that we have developed internally, as well as technology that we license from third

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parties, to provide security and authentication for the transmission of confidential information, including subscriber credit card numbers. However, we cannot ensure that this technology can prevent breaches of the systems that we use to protect subscriber credit card data. Although we maintain network security insurance, we cannot be certain that our coverage will cover, in whole or in part, liabilities actually incurred or that insurance will continue to be available to us on reasonable terms, or at all. In addition, some of our third-party partners also collect information from transactions with our customers, and we may be subject to litigation or our reputation may be harmed if our partners fail to protect our subscribers’ information or if they use it in a manner that is inconsistent with our practices.

Data breaches can also occur as a result of non-technical issues. Under our contracts with our card processors, if there is unauthorized access to, or disclosure of, credit card information that we store, we could be liable to the credit card issuing banks for their cost of issuing new cards and related expenses.

Our quarterly and annual operating results may be adversely affected due to a variety of factors, which could make our future results difficult to predict and could cause our operating results to fall below investor or analyst expectations.

Our quarterly and annual operating results and key metrics have varied from period to period in the past, and we expect they may continue to fluctuate as a result of a number of factors, many of which are outside of our control, including:

• our ability to cost-effectively attract, retain, and increase sales to subscribers;

• the impact of competition;

• the timing and success of introductions of new products or product enhancements;

• the amount and timing of our marketing expenditures;

• the amount and timing of capital expenditures or extraordinary expenses, such as litigation, regulatory or other dispute-related settlement payments (including, for example, any potential settlements of the pending legal proceedings described in Item 1 - Legal Proceedings);

• the mix of products we sell;

• higher than expected refunds to our subscribers;

• systems, data center and Internet failures, breaches and service interruptions;

• negative publicity about us or our brands;

• loss of key employees or difficulties recruiting new employees;

• the impact of changes in legislation or regulations, or to interpretations of existing legislation and regulations;

• litigation or governmental enforcement actions against us due to actual or alleged failures to comply with applicable laws or regulations;

• failures to comply with industry standards such as the payment card industry data security standards;

• changes in our effective tax rate, our misinterpretation of tax laws and regulations, or adverse outcomes from regulatory examinations of our income tax and other tax returns;

• interest rate fluctuations;

• goodwill and other intangible asset impairments;

• terminations of, disputes with, or material changes to our relationships with third-party partners; and

• costs, integration problems, or other liabilities associated with past or future acquisitions, strategic investments or joint ventures.

In the past, we have from time to time reported financial results that were below our expectations and the expectations of equity research analysts and investors, and it is possible that this could occur again in one or more future periods, due to any of the factors listed above, a combination of those factors or other reasons. In that event, our stock price could decline substantially.

Our business depends on establishing and maintaining strong brands. If we are not able to effectively promote our brands, or if the reputation of our brands is damaged, our ability to expand our subscriber base will be impaired and our business and operating results will be harmed.

We market our solutions through various brands, including Bluehost, HostGator, iPage, Domain.com, BigRock, ResellerClub, Constant Contact and SinglePlatform, among others.

We believe that establishing and maintaining our brands is critical to our efforts to expand our subscriber base. If we do not build awareness of our key brands, we could be at a competitive disadvantage to companies whose brands are, or become, more recognizable than ours. For instance, we believe that our business has been, and may continue to be, affected by the increasing tendency of consumers to search for web presence and marketing solutions using brand related search terms as opposed to unbranded search terms such as hosting, website builders or email marketing. We believe this trend has benefited competitors who have invested more heavily in, and used a broader array of marketing channels in, building consumer awareness of their brand than we have. To attract and retain subscribers and to promote and maintain our brands in response to competitive pressures, we may have to substantially increase our financial commitment to creating and maintaining distinct

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brand loyalty among subscribers, particularly since a number of our competitors have invested heavily in their brands in the past and may be able to devote more resources than we can to brand awareness going forward.

 If subscribers, as well as our third-party referral marketing, distribution and reseller partners, do not perceive our existing solutions to be reliable and of high quality, if we introduce new services or enter into new business ventures that are not favorably received by such parties, or if our brands become associated with any fraudulent or deceptive conduct on the part of our subscribers, the value of our brands could be diminished, thereby decreasing the attractiveness of our solutions to such parties. As a result, our operating results may be adversely affected by decreased brand recognition and harm to our reputation.

The rate of growth of the SMB market for our solutions could be significantly lower than our estimates. The success of our products depends on the expansion and reliability of the Internet infrastructure and the continued growth and acceptance of email as a communications tool. If demand for our products and services does not meet expectations, our ability to generate revenue and meet our financial targets could be adversely affected.

The rate of growth of the SMB market may not meet our expectations, which would adversely affect our business. Our expectations for future revenue trends are based in part on assumptions reflecting our industry knowledge and experience serving SMBs, as well as our assumptions regarding demographic shifts, growth in the Internet infrastructure internationally and macroeconomic conditions. However, SMB spending patterns are difficult to predict and are sensitive to the general economic climate, the economic outlook specific to SMBs and overall consumer confidence, which makes it difficult to forecast market trends accurately. If any of our assumptions regarding the SMB market proves to be inaccurate, our revenue could be significantly lower than expected.

Our ability to compete depends on our ability to offer products and services that enable our subscribers to establish, manage and grow their businesses. Our web presence and commerce offerings are predicated on the assumption that an online presence will continue to be an important factor in our subscribers’ abilities to establish, expand, manage and monetize their businesses affordably. If we are incorrect in this assumption, for example due to the introduction of a new technology or industry standard (or evolution of existing technology such as social media or mobile messaging and “conversational commerce” applications such as WeChat) that supersedes the importance of an online presence or renders our existing or future solutions obsolete, then our ability to retain existing subscribers and attract new subscribers could be adversely affected, which could harm our ability to generate revenue and meet our financial targets.

The future success of our email marketing solution depends on the continued and widespread adoption of email as a primary means of communication. Security problems such as “viruses,” “worms,” and other malicious programs, reliability issues arising from outages and damage to the Internet infrastructure, or publicity about leaked emails of high-profile users could create the perception that email is not a safe and reliable means of communication. Use of email by businesses and consumers also depends on the ability of email providers to prevent unsolicited bulk email, or “spam,” from overwhelming consumers’ inboxes. If security problems become widespread or frequent or if email providers cannot effectively control spam, the use of email as a means of communication may decline as consumers find alternative ways to communicate. We could also be harmed if, in an attempt to limit unsolicited email, email providers restrict or limit emails sent by our customers using our email marketing solution. In addition, if alternative communications tools, such as social media, text messaging or services like WeChat, gain widespread acceptance, the need for email may decrease. Any of these events could materially increase our expenses or reduce demand for our email marketing solution and harm our business.

In addition, our business depends on the ability and desire of our customers to access the Internet. The adoption of any laws or regulations adversely affecting the growth, popularity, accessibility or use of the Internet, including laws impacting Internet neutrality or new tax regulations or court decisions concerning the taxation of online commerce, could decrease the demand for our products, require us to make modifications to our products, or increase our operating costs. For instance, in December 2017, the Federal Communications Commission repealed rules adopted in 2015 that generally prohibited Internet service providers from charging some Internet content providers higher rates than others for the delivery of their content. With the repeal of these rules, Internet service providers could impose higher fees or deliver our content with less speed, reliability or otherwise on a non-neutral basis as compared to other market participants, which could adversely impact our business.

Our success depends in part on our strategic relationships and partnerships or other alliances with third parties.

We rely on third-party relationships and alliances, such as with referrers and promoters of our brands and solutions, as well as with our providers of solutions and services that we offer to subscribers. If any of the third parties on which we rely fails to perform as expected, breaches or terminates their agreement with us, or becomes engaged in a dispute with us, our reputation could be adversely affected and our business could be harmed.

We rely on third-party referral partners and other marketing partners to acquire subscribers. If these partners fail to promote our brands or to refer new subscribers to us, begin promoting competing brands in addition to or instead of ours, fail to comply with regulations, are forced to change their marketing practices in response to new or existing regulations or cease to be viewed as credible sources of information by our potential subscribers, we may face decreased demand for our solutions, higher

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than expected subscriber acquisition costs, and loss of revenue. For instance, in the past, we were impacted when an important referral source began featuring competing web hosting brands on their website, rather than just our brand. It is possible that in the future, this referral source or another, similar referral source will continue to add competing web hosting options or even remove us as an option, which could have a negative impact on us.

Our ability to offer domain name services to our subscribers depends on certain third-party relationships. For example, certain of our subsidiaries are accredited by ICANN and various domain name registries as a domain name registrar. If we fail to comply with domain name registry requirements or if domain name registry requirements change, we could lose our accreditation, be required to increase our expenditures, comply with additional requirements or alter our service offerings, any of which could have a material adverse effect on our business, financial condition or results of operations.

We also have relationships with product partners whose solutions, including shopping carts and security tools, we offer to our subscribers. Particularly in our email marketing segment, we rely on some of our partners to create integrations with third-party applications and platforms used by our subscribers. We may be unable to continue our relationship with any of these partners if, for example, they decline to continue to work with us or are acquired by third parties. In such an event, we may not be able to continue to offer these third-party tools to our subscribers or we may be forced to find an alternative that may be inferior to the solution that we had previously offered, which could harm our business and our operating results.

We also rely on software licensed from or hosted by third parties to offer our solutions to our subscribers. In addition, we may need to obtain future licenses from third parties to use intellectual property associated with the development of our solutions, which might not be available to us on acceptable terms, or at all. Any loss of the right to use any software or other intellectual property required for the development and maintenance of our solutions could result in delays in the provision of our solutions until equivalent technology is either developed by us, or, if available, is identified, obtained and integrated, which could harm our business and operating results.

The international nature of our business exposes us to business risks that could limit the effectiveness of our growth strategy and cause our operating results to suffer.

We currently maintain offices and workforces, and conduct operations, primarily in the United States, Brazil, India and the Netherlands and have third-party support arrangements in India, China and the Philippines. We also have localized versions of our Bluehost and HostGator sites targeted to customers in several other countries. Conducting operations in international markets or establishing international locations subjects us to challenges that we have not generally faced in the United States, including:

• adapting our solutions and marketing practices to international markets, including translation into foreign languages;

• compliance with foreign laws, including more stringent laws in foreign jurisdictions relating to consumer privacy and protection of data collected from individuals and other third parties;

• difficulties in collecting payments from subscribers or in automatically renewing their contracts with us, especially due to the more limited availability and popularity of credit cards in certain countries;

• greater difficulty in enforcing contracts, including our terms of service and other agreements;

• management, communication, compliance and integration problems resulting from cultural or language differences and geographic dispersion;

• sufficiency of qualified labor pools and greater influence of organized labor in various international markets;

• compliance by our employees, business partners and other agents with anti-bribery laws, economic sanction laws and regulations, export controls, and other U.S., foreign and local laws and regulations regarding international and multi-national business operations;

• potentially adverse tax consequences, including the complexities of foreign value added tax (or sales, service, use or other tax) systems, and our inadvertent failure to comply with all relevant foreign tax rules and regulations due to our lack of familiarity with the jurisdiction’s tax laws;

• restrictions and withholdings on the repatriation of earnings;

• foreign currency exchange risk;

• uncertain political, regulatory and economic climates in some countries, which could result in unpredictable or frequent changes in applicable regulations or in the general business environment that could negatively impact us; and

• reduced protection for intellectual property rights in some countries.

These factors have caused our international costs of doing business to exceed our comparable domestic costs. A negative impact from our international business efforts could adversely affect our business, operating results and financial condition as a whole.

In addition, our ability to expand internationally and attract and retain non-U.S. subscribers may be adversely affected by concerns about the extent to which U.S. governmental and law enforcement agencies may obtain data under the Foreign Intelligence Surveillance Act and Patriot Act and similar laws and regulations, and by privacy laws in other jurisdictions (such as the European Union's General Data Protection Regulation) that are generally more protective of subscriber data than U.S.

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law. Non-U.S. subscribers may decide that the privacy risks of storing data with a U.S.-based company outweigh the benefits and opt to seek solutions from a company based outside of the United States. In addition, certain foreign governments require local storage of their citizens’ data. If we become subject to such requirements, it may require us to increase the number of non-U.S. data centers or servers we maintain, increase our costs or adversely affect our ability to attract, retain or cost-effectively serve non-U.S. subscribers.

Acquisitions, joint ventures and other strategic investments may not achieve the intended benefits or may disrupt our current plans and operations.

Acquisitions have historically been an important component of our growth strategy. In February 2016, we acquired Constant Contact, and in the past we have acquired the businesses and assets of numerous other companies. We have also made strategic investments in and entered into joint ventures with third parties, typically with small companies focused on developing or marketing products that may complement our own. We may complete transactions of this type in the future. These transactions involve numerous risks, including the following:

• difficulties or delays in integrating the acquired businesses, which could prevent us from realizing the anticipated benefits of acquisitions;

• reliance on third parties for transition services prior to subscriber migration;

• difficulties in supporting and migrating acquired subscribers, if any, to our platforms, which could cause subscriber churn, unanticipated costs and damage to our reputation;

• disruption of our ongoing business and diversion of management and other resources from existing operations;

• the incurrence of additional debt or the issuance of equity securities, resulting in dilution to existing stockholders, in order to fund an acquisition;

• assumption of debt or other actual or contingent liabilities of the acquired company, including litigation risk;

• differences in corporate culture, compliance protocols, and risk management practices between us and acquired companies;

• potential loss of an acquired business’ key employees;

• potential loss of the subscribers or partners of an acquired business due to the actual or perceived impact of the acquisition;

• difficulties associated with governance, management and control matters in majority or minority investments or joint ventures;

• unforeseen or undisclosed liabilities or challenges associated with the companies, businesses or technologies we acquire;

• adverse tax consequences, including exposure of our entire business to taxation in additional jurisdictions; and

• accounting effects, including potential impairment charges and requirements that we record deferred revenue at fair value.

Any of these risks could result in our acquisitions disrupting our business and/or failing to achieve their intended objectives.

We have a history of losses and may not be able to achieve or maintain profitability.

We have had a net loss in each year since inception. We had a net loss attributable to Endurance International Group Holdings, Inc. of $25.8 million for fiscal year 2015, $72.8 million for fiscal year 2016 and $107.3 million for fiscal year 2017, and we may incur losses in the future. In connection with our acquisitions, we have recorded long-lived assets at fair value. We record amortization expense in each reporting period related to the long-lived assets, which impacts the amount of net loss or income we record in each reporting period.

We have made and expect to continue to make significant expenditures to maintain, develop and expand our business. Our revenue and subscriber growth may be insufficient to achieve or maintain profitability in light of our expenditure levels. As further discussed in Part I, Item 2 - Management’s Discussion and Analysis of Financial Condition and Results of Operations, our total subscriber base decreased during the twelve months ended September 30, 2018, and revenue in our web presence and domain segments declined for the three and nine months ended September 30, 2018 relative to the comparable prior year periods. If we are not successful in addressing the factors that have contributed to these developments, we may not be able to either increase subscriber and revenue growth or maintain current subscriber and revenue levels, which could result in a material adverse effect on our business and financial results. We may incur significant losses in the future for these or a number of other reasons, including interest expense related to our substantial indebtedness and the other risks described in this report.

We may need additional equity, debt or other financing in the future, which we may not be able to obtain on acceptable terms, or at all, and any additional financing may result in restrictions on our operations or substantial dilution to our stockholders.

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We may need to raise funds in the future, for example, to develop new technologies, expand our business, respond to competitive pressures, acquire businesses, or respond to unanticipated situations. Our ability to obtain debt or equity funding will depend on a number of factors, including market conditions, interest rates, our operating performance and investor interest. In addition, incurring additional debt may not be permitted under our credit agreement or indenture governing our 10.875% senior notes due 2024 (which we refer to as the "Notes"), or may require lender or noteholder consent. As such, additional funding may not be available to us on acceptable terms or at all.

If adequate funds are not available, we may be required to reduce expenditures, including curtailing our growth strategies, foregoing acquisitions or reducing our product development efforts. If we succeed in raising additional funds through the issuance of equity or convertible securities, then the issuance could result in substantial dilution to existing stockholders. If we raise additional funds through the issuance of debt securities or preferred stock, these new securities would have rights, preferences and privileges senior to those of the holders of our common stock. In addition, any preferred equity issuance or debt financing that we may obtain in the future could have restrictive covenants relating to our capital raising activities and other financial and operational matters, which may make it more difficult for us to obtain additional capital and to pursue business opportunities, including potential acquisitions. To the extent any such new indebtedness is secured and is at higher interest rates than on our existing first lien term loan facility, the interest rates on our existing first lien term loan facility could increase as a result of the “most-favored nation” pricing provision in our existing credit agreement. Further, to the extent that we incur additional indebtedness or such other obligations, the risks associated with our substantial leverage described elsewhere in this report, including our possible inability to service our debt, would increase.

We rely on data centers to deliver our services. If we are unable to renew our data center agreements on favorable terms, or at all, our business could be adversely affected. In addition, our ownership of our largest data center subjects us to potential costs and risks associated with real property ownership.

We currently serve most of our subscribers from six data center facilities located in Massachusetts (three), Texas (two), and Utah (one). We own the Utah data center and occupy the remaining data centers pursuant to co-location service agreements with third-party data center facilities which have built and maintain the co-located data centers for us and other parties. Although we own the servers in these data centers and engineer and architect the systems upon which our platforms run, we do not control the operation of the facilities we do not own.

The terms of our existing co-located data center agreements vary in length and expire on various dates through 2023. The owners of these or our other co-located data centers have no obligation to continue such arrangements beyond their current terms, nor are they obligated to renew their agreements with us on terms acceptable to us, or at all. These agreements may not provide us with adequate time to transfer operations to a new facility in the event of early termination. If we were required to move our equipment to a new facility without adequate time to plan and prepare for such migration, we would face significant challenges due to the technical complexity, risk and high costs of the relocation. Any such migration could result in downtime or other disruptions to our services, which could damage our reputation, cause subscriber losses and harm our operating results and financial condition.

If we are able to renew the agreements on our existing co-located data center facilities, the lease rates may be higher than those we pay under our existing agreements. In addition, the complexities and risks of data center migrations, even when we have adequate time to plan for them, can sometimes make it impractical to leave our current data center facilities, even when we may be able to obtain economic or other terms with a new data center provider that would be better for us over the long term. If we fail to increase our revenue by amounts sufficient to offset any increases in lease rates for our existing data center facilities, or cannot take advantage of potentially better terms with new data center providers because of migration challenges, our operating results may be materially and adversely affected.

With respect to the data center facility that we own, we are subject to risks, and may incur significant costs, related to our ownership of the facility and the land on which it is located, including costs or risks related to building repairs or upgrades and compliance with various federal, state and local laws applicable to real property owners, including environmental laws.

If our solutions and software contain serious errors or defects, or if human error on our part results in damage to our subscribers’ businesses, then we may lose revenue and market acceptance and may incur costs to defend or settle claims.

Complex technology platforms, software applications and systems such as ours often contain errors or defects, such as errors in computer code, vulnerabilities or other systems errors, particularly when first introduced or when new versions, enhancements or updates are released. Because we also rely on third parties to develop many of our solutions, our products and services may contain additional errors or defects as a result of the integration of the third party’s product. Despite quality assurance measures, internal testing and beta testing by our subscribers, we cannot guarantee that our current and future solutions will be free of serious defects, which could result in lost revenue or a delay in market acceptance. Such errors in computer code, vulnerabilities or other system errors have in the past and may in the future result in performance issues, loss of data, data breaches, malware outbreaks, DDoS attacks staged by using our resources, and other issues. To date, we do not

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believe that any of these errors has had a material effect on us, but we may experience larger and more serious incidents in the future.

Since our subscribers use our solutions to, among other things, maintain an online presence for their business, it is not uncommon for subscribers to allege that errors, defects, or other performance problems result in damage to their businesses. They could elect to cancel or not to renew their agreements, delay or withhold payments to us, or bring claims or file suit seeking significant compensation from us for the losses they or their businesses allege to have suffered. For instance, from time to time, we have inadvertently deleted subscriber data due to human error, technical problems or miscommunication with customers. These lost data cases have sometimes led to subscribers commencing litigation against us, settlement payments to subscribers, subscription cancellations, and negative social media attention. Although our subscriber agreements typically contain provisions designed to limit our exposure to specified claims, including data loss claims, existing or future laws or unfavorable judicial decisions could negate or diminish these limitations. Even if not successful, defending against claims brought against us can be time-consuming and costly and could seriously damage our reputation in the marketplace, making it harder for us to acquire and retain subscribers.

Because we are required to recognize revenue for our subscription-based services over the term of the applicable subscriber agreement, changes in our sales may not be immediately reflected in our operating results. In addition, we may not have adequate reserves in the event that our historical levels of refunds increase, which could adversely affect our liquidity and profitability.

We recognize revenue from our subscribers ratably over the respective terms of their agreements with us in accordance with U.S. generally accepted accounting principles. These contracts are generally for service periods of up to 36 months. Accordingly, increases in sales during a particular period do not translate into corresponding increases in revenue during that same period, and a substantial portion of the revenue that we recognize during a quarter is derived from deferred revenue from our agreements with subscribers that we entered into during previous quarters.

As a result, we may not generate net earnings despite substantial sales activity during a particular period, since we are not allowed under applicable accounting rules to recognize all of the revenue from these sales immediately, and because we are required to record a significant portion of our related operating expenses during that period. Conversely, the existence of substantial deferred revenue may prevent deteriorating sales activity from becoming immediately apparent in our reported operating results.

In connection with our domain registration services, as a registrar, we are required under our agreements with domain registries to prepay the domain registry for the term for which a domain is registered. We recognize this prepayment as an asset on our consolidated balance sheet and record domain revenue and the domain registration expense ratably over the term that a domain is registered. This cash payment to the domain registry may lead to fluctuations in our liquidity that is not immediately reflected in our operating results.

In addition, our standard terms of service permit our subscribers to seek refunds from us in certain instances, and we maintain reserves to provide such refunds. The amount of such reserves is based on the amount of refunds that we have provided in the past. If our actual level of refund claims exceeds our estimates and our refund reserves are not adequate to cover such claims, our liquidity or profitability could be adversely affected. Furthermore, if we experience an unexpected decline in our revenue, we may not be able to adjust spending in a timely manner to compensate for such shortfall, and any significant shortfall in revenue relative to planned expenditures could adversely affect our business and operating results.

We are subject to numerous laws and regulations, including those related to privacy, data protection and information security. Our actual or perceived failure to comply with such obligations could harm our business, and changes in such regulations or laws could require us to modify our products or our marketing, market research and advertising practices.

We collect personally identifiable information and other data from our subscribers and prospective subscribers. We use this information to provide services to our subscribers, to support, expand and improve our business and, subject to each subscriber’s or prospective subscriber’s right to decline or opt out, we may use this information to market other products and services to them. We may also share subscribers’ personally identifiable information with certain third parties as authorized by the subscriber or as described in our privacy policy.

The U.S. federal and various state and foreign governments have adopted or proposed guidelines or rules for the collection, distribution, use and storage of information collected from or about consumers or their devices. The U.S. Federal Trade Commission, or FTC, and various U.S. state and local governments and agencies regularly use their authority under laws prohibiting unfair or deceptive marketing and trade practices to investigate and penalize companies for practices related to the collection, use, handling, disclosure, dissemination and security of personal data of U.S. consumers. California adopted significant new consumer privacy laws in June 2018 that will be effective beginning in January 2020. Several foreign countries and governmental bodies, including the countries of the European Union, or EU, Canada, and Brazil, have adopted laws and regulations dealing with the collection and use of personal data obtained from their residents, which are often more restrictive

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than those in the United States. Laws and regulations in these jurisdictions apply broadly to the collection, use, storage, disclosure and security of personal information that identifies or may be used to identify an individual, such as names, contact information, and, in some jurisdictions, certain unique identifiers. These laws and regulations are subject to frequent revisions and differing interpretations, and have generally become more stringent over time. Furthermore, additional countries and other jurisdictions are considering the adoption of similar laws and regulations.

On May 25, 2018, the EU-wide General Data Protection Regulation, or GDPR, took effect, replacing the data protection laws of each EU member state. The GDPR implemented more stringent operational requirements for processors and controllers of personal data, including, for example, expanded disclosures about how personal information is to be used, increased requirements to erase an individual’s information upon request and comply with other requests from individuals, mandatory data breach notification requirements, restrictions on automated decision-making and profiling, and higher standards for data controllers to demonstrate that they have obtained valid consent for certain data processing activities. The GDPR also significantly increased penalties for non-compliance, including where we act as a service provider (e.g., controller or processor). In addition, we face uncertainty about whether our obligations as a registrar accredited by ICANN will comply with the requirements of the GDPR, since ICANN governs and determines the obligations required for the accreditation of registrars. If our privacy or data security measures fail to comply with applicable current or future laws and regulations, including if we fail to fully notify subscribers and prospective subscribers of our data processing activities and obtain their consent where needed, we may be subject to litigation, regulatory investigations, or enforcement actions (including enforcement notices requiring us to change the way we use personal data or our marketing practices, fines, or other liabilities), as well as negative publicity and a potential loss of business and revenue. Under the GDPR, fines of up to 20,000,000 Euros or up to 4% of the total worldwide annual turnover of the preceding financial year, whichever is higher, may be imposed.

Future data privacy laws or regulations, or modifications to existing laws or regulations, could impair our ability to collect, transfer and/or use subscriber information that we use to provide targeted advertising to our subscribers, thereby impairing our ability to maintain and grow our subscriber base and increase revenue. Future restrictions on the collection, use, transfer, sharing or disclosure of our subscribers’ data or additional requirements for obtaining the consent of subscribers for the use and disclosure of such information could require us to modify our solutions and features, possibly in a material manner, and could limit our ability to develop new services and features. For example, regulation of cookies, web beacons and similar technology for online behavioral advertising may lead to broader restrictions on our activities, including our collection and use of online usage information in order to attract and retain customers. Such regulation may also increase the potential for civil liability under consumer protection laws. In addition, providers of major browsers have and may continue to include features that allow users to limit the collection of certain data about their Internet usage, which could also inhibit our ability to track and analyze user data.

We rely on third parties to carry out a number of services for us, including processing personal data on our behalf, and while we enter into contractual arrangements to help ensure that they only process such data according to our instructions and have sufficient security measures in place, any security breach or non-compliance with our contractual terms or breach of applicable law by such third parties could result in governmental enforcement actions, litigation, fines and penalties or adverse publicity and could cause our subscribers to lose trust in us, which could have an adverse impact on our reputation and business. In particular, under certain circumstances, we may be considered liable for non-compliance of our third-party partners with the GDPR or other privacy laws and regulations.

In addition, we collect personally identifiable data from our employees as part of our standard human resources procedures. This type of information is also subject to various laws and regulations in the jurisdictions where we operate, and it is possible that we or our third party contractors may not comply with applicable requirements, which could result in liability for us.

New laws, regulations or standards or new interpretations of existing laws, regulations or standards, including but not limited to those in the areas of data security, data privacy, consumer protection and regulation of email providers, could require us to incur additional costs and restrict our business operations. Failure by us to comply with applicable requirements may result in governmental enforcement actions, litigation, fines and penalties or adverse publicity, which could have an adverse effect on our reputation and business.

We are subject to consumer protection laws that regulate our marketing practices and prohibit unfair or deceptive acts or practices. Our actual or perceived failure to comply with such obligations could harm our business, and changes in such regulations or laws could require us to modify our products, marketing or advertising efforts.

In connection with the marketing, telemarketing or advertisement of our products and services by us or our affiliates or referral partners, we could be the target of claims relating to false, misleading,deceptive or otherwise noncompliant advertising or marketing practices, including under the auspices of the FTC, the Telephone Consumer Protection Act, the Telemarketing Sales Rule and state consumer protection statutes. Among other things, our failure to implement any disclosures or functionality required by the FTC or state consumer protection statutes in connection with our various brand websites,

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customer communications or products or services, our failure to obtain the required consent prior to placing calls or sending text messages to mobile phones, or our failure to appropriately comply with "do not call" or "do not contact" requests from individuals, could subject us to adverse regulatory action, litigation, significant fines or other adverse consequences. We also rely on third parties to provide marketing and advertising of our products and services, and we could be liable for, or face reputational harm as a result of, their marketing practices if, for example, they fail to comply with applicable statutory and regulatory requirements. In the EU and in other jurisdictions outside of the United States, we could be the target of similar claims under consumer protection laws, regulation of cloud services, e-commerce and distance selling regulation, advertising regulation, unfair competition rules or similar legislation.

Future consumer protection laws or regulations, or modifications to existing laws or regulations (such as, for example, requirements to obtain additional consents from subscribers or to provide them with additional disclosures in order to be permitted to automatically renew their subscriptions), could impair our ability to retain or attract subscribers. Such regulation may also increase the potential for civil liability under consumer protection laws. 

The U.S. Controlling the Assault of Non Solicited Pornography and Marketing Act of 2003, or CAN-SPAM Act, establishes certain requirements for commercial email messages and specifies penalties for the transmission of commercial email messages that are intended to deceive the recipient as to source or content. The CAN-SPAM Act, among other things, obligates the sender of commercial emails to provide recipients with the ability to opt out of receiving future emails from the sender. In addition, some states and countries have passed laws regulating commercial email practices that are significantly more punitive and difficult to comply with than the CAN-SPAM Act, such as Canada’s Anti-Spam Legislation, or CASL, and the GDPR. The ability of our subscribers’ customers to opt out of receiving commercial emails may minimize the effectiveness of our products, particularly Constant Contact’s email marketing solution. Moreover, non-compliance with the CAN-SPAM Act carries significant financial penalties.

If we are found to have breached any consumer protection, e-commerce and distance selling, anti-spam, telemarketing, advertising, unfair competition laws or other laws or regulations in any country, including any laws regulating cloud services, we may be subject to enforcement actions that require us to change our business practices in a manner which may negatively impact us. This could also result in litigation, fines, penalties and adverse publicity that could cause reputational harm and loss of subscriber trust, which could have an adverse effect on our business.

Failure to adequately protect and enforce our intellectual property rights could substantially harm our business and operating results.

In order to protect our intellectual property, proprietary technologies and processes, we rely upon a combination of trademark, patent and trade secret law, as well as confidentiality procedures and contractual restrictions. These afford only limited protection, may not prevent disclosure of confidential information, and may not provide an adequate remedy in the event of misappropriation or unauthorized disclosure. Despite our efforts to protect our intellectual property rights, unauthorized parties, including employees, subscribers and third parties, have made, and in the future may make, unauthorized or infringing use of our brand names, products, services, software and other functionality, in whole or in part, or obtain and use information that we consider proprietary.

Policing our proprietary rights and protecting our brands and domain names is difficult and costly and may not always be effective. In addition, we may need to enforce our rights under the laws of countries that do not protect proprietary rights to as great an extent as do the laws of the United States and any changes in, or unexpected interpretations of, the intellectual property laws in any country in which we operate may compromise our ability to enforce our intellectual property rights.

Litigation or proceedings before the U.S. Patent and Trademark Office or other governmental authorities and administrative bodies in the United States and abroad may be necessary to enforce our intellectual property rights or to defend against claims of infringement or invalidity. Such litigation or proceedings could be costly, time-consuming and distracting to our management, result in a diversion of resources, the impairment or loss of portions of our intellectual property, and have a material adverse effect on our business and operating results.

We could incur substantial costs as a result of any claim of infringement of another party’s intellectual property rights.

In recent years, there has been significant litigation in the United States and abroad involving patents and other intellectual property rights. Companies providing Internet-based products and services are increasingly bringing and becoming subject to suits alleging infringement of proprietary rights, particularly patent rights. The risk of patent litigation has been amplified by the increase in certain third parties, so-called “non-practicing entities,” whose sole business is to assert patent claims and against which our own intellectual property portfolio may provide little deterrent value.

We could incur substantial costs in prosecuting or defending any intellectual property litigation and we have incurred such costs in the past. If we sue to enforce our rights or are sued by a third party that claims that our solutions infringe its rights, the litigation could be expensive and could divert our management’s time and attention. Even a threat of litigation could

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result in substantial expense and time. In addition, some of our agreements with partners and others require us to indemnify those parties for third-party intellectual property infringement claims, which would increase the cost to us resulting from an adverse ruling on any such claim.

Any intellectual property litigation to which we might become a party, or for which we are required to provide indemnification, may require us to do one or more of the following:

• cease selling or using solutions that incorporate the intellectual property that our solutions allegedly infringe;

• make substantial payments for legal fees, settlement payments or other costs or damages;

• obtain a license or enter into a royalty agreement, which may not be available on reasonable terms or at all, to sell or use the relevant technology; or redesign the allegedly infringing solutions to avoid infringement, which could be costly, time-consuming or impossible.

If we are required to make substantial payments or undertake any of the other actions noted above as a result of any intellectual property infringement claims against us, our business or operating results could be harmed.

In addition, many companies are devoting significant resources to obtaining patents that could affect many aspects of our business, and our competitors and others may have significantly larger and more mature patent portfolios than we have. Since we do not have, and are not attempting to develop, a significant patent portfolio, this may prevent us from deterring patent infringement claims as well as limit our ability to develop product enhancements that are similar to patented third-party technology.

Our use of “open source” software could adversely affect our ability to sell our services and subject us to possible litigation.

We use open source software, such as MySQL and Apache, in providing a substantial portion of our solutions, and we may incorporate additional open source software in the future. Such open source software is generally licensed by its authors or other third parties under open source licenses. If we fail to comply with these licenses, we may be subject to certain conditions, including requirements that we offer our solutions that incorporate the open source software for no cost; that we make available source code for modifications or derivative works we create based upon, incorporating or using the open source software; and/or that we license such modifications or derivative works under the terms of the particular open source license. In addition, if a third-party software provider has incorporated open source software into software that we license from such provider, we could be required to disclose any of our source code that incorporates or is a modification of such licensed software. If an author or other third party that distributes such open source software were to allege that we had not complied with the conditions of one or more of these licenses, we could be required to incur significant legal expenses defending such allegations and could be subject to significant damages, enjoined from the sale of our solutions that contained the open source software, and required to comply with the foregoing conditions, which could disrupt the distribution and sale of some of our solutions. In addition, there have been claims challenging the ownership of open source software against companies that incorporate open source software into their products. As a result, we could be subject to suits by parties claiming ownership of what we believe to be open source software. Such litigation could be costly for us to defend, have a negative effect on our operating results and financial condition or require us to devote additional research and development resources to change our products.

We could face liability, or our reputation might be harmed, as a result of the activities of our subscribers, the content of their websites, the data they store on our servers or the emails that they send.

Our role as a provider of cloud-based solutions, including website hosting services, domain registration services and email marketing, may subject us to potential liability for the activities of our subscribers on or in connection with their websites or domain names or for the data they store on or send using our servers. Although our subscriber terms of use prohibit illegal use of our services by our subscribers and permit us to take down websites or take other appropriate actions for illegal use, subscribers may nonetheless engage in prohibited activities or upload, transmit or store content with us in violation of applicable law, third-party rights, or the subscriber’s own policies, which could subject us to liability.

Several U.S. federal statutes may apply to us with respect to various subscriber activities:

• The Digital Millennium Copyright Act of 1998, or DMCA, provides recourse for owners of copyrighted material who believe that their rights under U.S. copyright law have been infringed on the Internet. Under the DMCA, based on our current business activity as an online service provider that does not monitor, own or control website content posted by our subscribers, we generally are not liable for copyright infringing content posted by our subscribers or other third parties, provided that we follow the procedures for handling copyright infringement claims set forth in the DMCA. Generally, if we receive a proper notice from, or on behalf of, a copyright owner alleging infringement of copyrighted material located on websites we host, and we fail to expeditiously remove or disable access to the allegedly infringing material or otherwise fail to meet the requirements of the safe harbor provided by the DMCA, the copyright owner may seek to impose liability on us. We have in the past faced, and could in the future face, liability for copyright infringement due to technical mistakes in complying with the detailed DMCA take-down procedures.

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• The Communications Decency Act of 1996, or CDA, generally protects interactive computer service providers such as us, from liability for certain online activities of their customers, such as the publication of defamatory or other objectionable content. As an interactive computer services provider, we do not monitor hosted websites or prescreen the content placed by our subscribers on their sites. Accordingly, under the CDA, we are generally not responsible for the subscriber-created content hosted on our servers. However, the CDA does not apply in foreign jurisdictions, and new or proposed legislation now or in the future, such as the recently enacted Allow States and Victims to Fight Online Sex Trafficking Act of 2017, or FOSTA, may reduce the immunity provided to us by the CDA. This could require us to develop or purchase tools that automatically screen for certain types of customer content, which would likely be expensive and time-consuming. Further, despite the CDA, we may nonetheless be brought into disputes between our subscribers and third parties which would require us to devote management time and resources to resolve such matters. We could also be the target of negative publicity about these types of disputes or about our hosting of websites or facilitating of email messages containing objectionable content (including, for example, alleged terrorist or racist content), particularly since there has recently been increasing pressure on companies providing social media platforms and other technology companies to screen for and remove these types of content. Such publicity could also have an adverse effect on our reputation and therefore our business.

• In addition to the CDA, the Securing the Protection of our Enduring and Established Constitutional Heritage Act, or the SPEECH Act, provides a statutory exception to the enforcement by a U.S. court of a foreign judgment that is less protective of free speech than the United States. Generally, the exception applies if the law applied in the foreign court did not provide at least as much protection for freedom of speech and press as would be provided by the First Amendment of the U.S. Constitution or by the constitution and law of the state in which the U.S. court is located, or if no finding of a violation would be supported under the First Amendment of the U.S. Constitution or under the constitution and law of the state in which the U.S. court is located. Although the SPEECH Act may protect us from the enforcement of foreign judgments in the United States, it does not affect the enforceability of the judgment in the foreign country that issued the judgment. Given our international presence, we may therefore, nonetheless, have to defend against or comply with any foreign judgments made against us, which could take up substantial management time and resources and damage our reputation.   

Although these statutes and case law in the United States have generally shielded us from liability for subscriber activities to date, court rulings in pending or future litigation, or future legislative or regulatory actions, may narrow the scope of protection afforded us under these laws. Several court decisions and the enactment of FOSTA arguably have already narrowed the scope of the immunity provided to interactive computer services in the United States under the CDA. In addition, laws governing these activities are unsettled in many international jurisdictions, or may prove difficult or impossible for us to comply with in some international jurisdictions. Also, notwithstanding the exculpatory language of these bodies of law, we may be embroiled in complaints and lawsuits which, even if ultimately resolved in our favor, add cost to our doing business and may divert management’s time and attention. Finally, other existing bodies of law, including the criminal laws of various states, may be deemed to apply or new statutes or regulations may be adopted in the future, any of which could expose us to further liability and increase our costs of doing business.

We could also face liability under the Stored Communications Act, or SCA, which generally regulates voluntary and compelled disclosures of stored wire and electronic communications and transactional records by electronic communication service providers and remote computing service providers, which we believe includes us.  The SCA broadly prevents disclosure of such communications and records with certain exceptions.  We regularly receive requests for customer data in the ordinary course of business from law enforcement, government entities or from civil subpoenas.  While we have processes and procedures for responding to requests for customer data, we have in the past faced, and may in the future face, liability if we produce customer data in violation of the SCA. This could subject us to litigation, payment of damages, or reputational harm and take up management time and increase our costs of doing business.

We may face liability in connection with ownership or control of subscriber accounts, domain names or email contact lists or in connection with domain names we own.

As a provider of cloud-based solutions, including as a registrar of domain names and related services, we may face liability or costs related to ownership or control of subscriber accounts, websites, domain names or email contact lists, or in connection with domain names we own, including the following:

• Liability for our failure to renew a subscriber’s domain or for our role in the wrongful transfer of control or ownership of accounts, websites or domain names;

• Liability for other forms of account, website or domain name “hijacking,” including misappropriation by third parties of subscriber accounts, websites or domain names;

• Liability for providing the identity and contact details of a domain name registrant who has purchased our domain privacy service, including in connection with the implementation of the GDPR compliance measures, even though our

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terms of service reserve the right to provide the underlying WHOIS information and/or to cancel privacy services on domain names in certain circumstances;

• Liability for not providing such information where the underlying WHOIS information is no longer available due to GDPR compliance measures;

• Liability for trademark infringement if one or more domain names in our domain name portfolios that we own and provide for resale is alleged to violate another party’s trademark; and

• Liability for the infringement of third party trademarks or copyrights if advertisements displayed on websites associated with domains registered by us contain allegedly infringing content placed by third parties.

Occasionally a subscriber may register a domain name that is identical or similar to another party’s trademark or the name of a living person. Disputes involving registration or control of domain names are often resolved through the Uniform Domain Name Dispute Resolution Policy, or UDRP, ICANN’s administrative process for domain name dispute resolution, or through litigation under the Anticybersquatting Consumer Protection Act, or ACPA, or under general theories of trademark infringement or dilution. The UDRP generally does not impose liability on registrars, and the ACPA provides that registrars may not be held liable for registering or maintaining a domain name absent a showing of bad faith, intent to profit or reckless disregard of a court order by the registrar. However, we may face liability if we fail to comply in a timely manner with procedural requirements under these rules. In addition, these processes typically require at least limited involvement by us and, therefore, could result in increased costs for us.

We are subject to export controls and economic sanctions laws that could impair our ability to compete in international markets and subject us to liability if we are not in full compliance with applicable laws.

Our business activities are subject to various restrictions under U.S. export controls and trade and economic sanctions laws, including the U.S. Commerce Department’s Export Administration Regulations and economic and trade sanctions regulations administered by the U.S. Treasury Department’s Office of Foreign Assets Control, or OFAC, which prohibit certain transactions with U.S. embargoed or sanctioned countries, governments, persons and entities.

Although we take precautions and have implemented, and continue to seek to enhance, compliance measures to prevent transactions with U.S. sanction targets, from time to time we have identified, and we expect to continue to identify, instances of non-compliance with these laws, rules and regulations and transactions which we are required to block and report to OFAC. In particular, as we enhance the systems we use to screen out prohibited transactions, we may identify additional instances of non-compliance. In addition, as a result of our acquisition activities, we have acquired, and we may acquire in the future, companies for which we could face potential liability or penalties for violations if they have not implemented sufficient compliance measures to prevent transactions with targets of U.S. and other applicable sanctions laws. Failure to comply with these laws and regulations could subject us to civil or criminal penalties, government investigations, and reputational harm. In addition, if our third-party resellers fail to comply with these laws and regulations in their dealings, we could face potential liability or penalties for violations.

Changes in our solutions or changes in export and import regulations may create delays in the introduction and sale of our solutions in international markets, prevent our subscribers with international operations from deploying our solutions or, in some cases, prevent the export or import of our solutions to certain countries, governments or persons altogether. Any limitations or prohibitions on, or delays affecting, our ability to export or sell our solutions could adversely affect our business, financial condition and operating results.

Due to the global nature of our business, we could be adversely affected by violations of anti-bribery laws.

The global nature of our business requires us (including our employees and business partners or agents acting on our behalf) to comply with laws and regulations that prohibit bribery and corruption anywhere in the world. The U.S. Foreign Corrupt Practices Act, or the FCPA, the U.K. Bribery Act 2010, or the Bribery Act, and similar anti-bribery laws in India, Brazil or other jurisdictions where we do business generally prohibit companies and their intermediaries from making improper payments to government officials and other persons for the purpose of obtaining or retaining business or an improper business advantage. In addition, the FCPA requires public companies to maintain records that accurately and fairly represent their transactions and have an adequate system of internal accounting controls. We currently operate in areas of the world that have a reputation for heightened risks of corruption and, in certain circumstances, compliance with anti-bribery laws may conflict with local customs and practices. In addition, changes in laws could result in increased regulatory requirements and compliance costs which could adversely affect our business, financial condition and results of operations. We cannot assure that our employees, business partners or other agents will not engage in prohibited conduct and expose us to the risk of liability under the FCPA, the Bribery Act, or other anti-bribery laws. If we are found to be in violation of the FCPA, the Bribery Act or other anti-bribery laws, we could suffer criminal and civil penalties, other sanctions, and reputational damage, which could have a material adverse effect on our business.

Impairment of goodwill and other intangible assets would result in a decrease in earnings.

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Current accounting rules provide that goodwill and other intangible assets with indefinite useful lives may not be amortized, but instead must be tested for impairment at least annually. These rules also require that intangible assets with definite useful lives be amortized over their respective estimated useful lives to their estimated residual values, and reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Additionally, a reorganization of or change in the number of reporting units could result in the reassignment of goodwill between reporting units and may trigger an impairment assessment. We have substantial goodwill and other intangible assets, and we would be required to record a significant charge to earnings in our financial statements during the period in which any impairment of our goodwill or intangible assets is determined. Any impairment charges or changes to the estimated amortization periods could have a material adverse effect on our financial results. We recorded charges for impairment of goodwill and other intangible assets during 2016 and 2017, and it is possible we will record additional impairment charges in the future.

Risks Related to Our Substantial Indebtedness

Our substantial level of indebtedness could materially and adversely affect our financial condition.

We now have, and expect to continue to have, significant indebtedness that could result in a material and adverse effect on our business. As of September 30, 2018, we had approximately $1.8 billion of aggregate indebtedness, net of original issue discounts of $22.4 million and deferred financing costs of $33.5 million. Under our first lien term loan facility entered into on June 20, 2018, which refinanced our prior first lien term loan facility, we are required to repay approximately $7.9 million of principal at the end of each quarter and are required to pay accrued interest upon the maturity of each interest accrual period. We estimate that our interest payments on our new first lien term loan facility will be approximately $94.5 million for 2018. The interest accrual periods under our Senior Credit Facilities are typically three months in duration, except for LIBOR-based revolver loans, which are generally one or three months in duration. The actual amounts of our debt servicing payments vary based on the amounts of indebtedness outstanding, whether we borrow on a LIBOR or base rate basis, the applicable interest accrual periods and the applicable interest rates, which vary based on prescribed formulas. We are also required to pay accrued interest on the Notes on a semi-annual basis. We paid approximately $38.1 million of interest on the Notes during the nine months ended September 30, 2018, and we do not expect to make any additional interest payments on the Notes for 2018.

We may be able to incur substantial additional debt in the future. The terms of our Senior Credit Facilities and the indenture governing the Notes permit us to incur additional debt subject to certain conditions. This high level of debt could have important consequences, including:

• making it more difficult for us to make payments on our indebtedness;

• increasing our vulnerability to general adverse financial, business, economic and industry conditions, as well as other factors that are beyond our control;

• requiring us to refinance, or resulting in our inability to refinance, all or a portion of our indebtedness at or before maturity, on favorable terms or at all, whether due to uncertain credit markets, our business performance, or other factors;

• requiring us to dedicate a substantial portion of our cash flow from operations to payments on our indebtedness, thereby reducing the availability of our cash flow to fund working capital, capital expenditures, acquisitions, research and development efforts and other general corporate purposes;

• limiting our flexibility in planning for, or reacting to, changes in our business and the industry in which we operate and placing us at a disadvantage compared to our competitors that are less highly leveraged;

• restricting our ability to pay dividends on our capital stock or redeem, repurchase or retire our capital stock or indebtedness;

• limiting our ability to borrow additional funds;

• exposing us to the risk of increased interest rates as certain of our borrowings are, and may in the future be, at variable interest rates;

• requiring us to sell assets or incur additional indebtedness if we are not able to generate sufficient cash flow from operations to fund our liquidity needs; and

• making it more difficult for us to fund other liquidity needs.  

The occurrence of any one of these events or our failure to generate sufficient cash flow from operations could have a material adverse effect on our business, financial condition, results of operations and ability to satisfy our obligations under our indebtedness. If new debt is added to our current debt levels, the related risks that we now face, as described further herein, could intensify and we may not be able to meet all our debt obligations.

The terms of our Senior Credit Facilities and the indenture governing the Notes impose restrictions on our business, reducing our operational flexibility and creating default risks. Failure to comply with these restrictions, or other events,

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could result in default under the relevant agreements that could trigger an acceleration of our indebtedness that we may not be able to repay.

Our Senior Credit Facilities and the indenture governing the Notes require compliance with a set of financial and non-financial covenants. These covenants contain numerous restrictions on our ability to, among other things:

• incur additional debt;

• make restricted payments (including any dividends or other distributions in respect of our capital stock and any investments);

• sell or transfer assets;

• enter into affiliate transactions;

• create liens;

• consolidate, merge, sell or otherwise dispose of all or substantially all of our assets; and

• take other actions.

As a result, we may be restricted from engaging in business activities that may otherwise improve our business or from financing future operations or capital needs. We are also required to comply with a financial covenant to maintain a maximum ratio of consolidated senior secured net indebtedness to an adjusted consolidated EBITDA measure. Failure to comply with the covenants, if not cured or waived, could result in an event of default that could trigger acceleration of our indebtedness, which would require us to repay all amounts owing under our Senior Credit Facilities and the Notes and could have a material adverse impact on our business. Our Senior Credit Facilities and the indenture governing the Notes also contain provisions that trigger repayment obligations, including in some cases upon a change of control, as well as various representations and warranties which, if breached, could lead to events of default. We cannot be certain that our future operating results will be sufficient to ensure compliance with the covenants in our Senior Credit Facilities or the indenture governing the Notes or to remedy any defaults under our Senior Credit Facilities or the indenture governing the Notes. In addition, in the event of any event of default and related acceleration, we may not have or be able to obtain sufficient funds to make any accelerated payments.

EIG Investors, the borrower under our Senior Credit Facilities and the Issuer of the Notes, is a holding company, and may not be able to generate sufficient cash to service all of its indebtedness.

EIG Investors Corp, or EIG Investors, the borrower under our Senior Credit Facilities and the issuer of the Notes, has no direct operations and no significant assets other than the stock of its subsidiaries. Because it conducts its operations through its operating subsidiaries, EIG Investors depends on those entities to generate the funds necessary to meet its financial obligations, including its required obligations under our Senior Credit Facilities and the Notes. The ability of our subsidiaries to make transfers and other distributions to EIG Investors is subject to, among other things, the terms of any debt instruments of those subsidiaries then in effect, applicable law, prevailing economic and competitive conditions and certain financial, business and other factors beyond our control. If transfers or other distributions from our subsidiaries to EIG Investors were eliminated, delayed, reduced or otherwise impaired, its ability to make payments on its obligations would be substantially impaired.

Furthermore, if EIG Investors’ cash flows and capital resources are insufficient to fund its debt service obligations, we may be forced to reduce or delay investments and capital expenditures, seek additional capital, restructure or refinance EIG Investors’ or our indebtedness, or sell assets. We may not be able to accomplish any of these alternatives on a timely basis, on satisfactory terms, or at all, which would limit EIG Investors’ ability to meet its scheduled debt service obligations (including in respect of our Senior Credit Facilities or the Notes). Our ability to restructure or refinance our indebtedness will depend on the condition of the capital markets and the financial condition of EIG Investors and us at the time. Any refinancing of EIG Investors’ debt could be at higher interest rates and may require EIG Investors to comply with more onerous covenants, which could further restrict our business operations. Our Senior Credit Facilities and the indenture governing the Notes will also restrict our ability to use the proceeds from asset sales. We may not be able to consummate those asset sales to raise capital or sell assets at prices that we believe are fair, and any proceeds that we receive may not be adequate to meet any debt service obligations then due. In addition, any failure to make payments of interest and principal on EIG Investors’ outstanding indebtedness on a timely basis could result in an event of default that would trigger acceleration of our indebtedness and would likely result in a reduction of EIG Investors' credit rating, which could harm our ability to incur additional indebtedness.

EIG Investors may not be able to repurchase the Notes upon a change of control or pursuant to an asset sale offer, which would cause a default under the indenture governing the Notes and our Senior Credit Facilities.

Upon the occurrence of specific kinds of change of control events, EIG Investors will be required under the indenture governing the Notes to offer to repurchase all outstanding Notes at 101% of their principal amount plus accrued and unpaid interest, if any, unless the Notes have been previously called for redemption. The source of funds for any such purchase of the Notes will be EIG Investors’ available cash or cash generated from its subsidiaries’ operations or other sources, including borrowings, sales of assets or sales of equity. EIG Investors may not be able to repurchase the Notes upon a change of control because it may not have sufficient financial resources to purchase all of the Notes that are tendered upon a change of control. Further, the terms of our Senior Credit Facilities and any of EIG Investors' future debt agreements may restrict EIG Investors

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from repurchasing all of the Notes tendered by holders upon a change of control. Accordingly, EIG Investors may not be able to satisfy its obligations to purchase the Notes unless it is able to refinance or obtain waivers under our Senior Credit Facilities. EIG Investors’ failure to repurchase the Notes upon a change of control would cause an event of default under the indenture governing the Notes and a cross-default under our Senior Credit Facilities. Our Senior Credit Facilities also provide that a change of control is an event default that permits lenders to accelerate the maturity of borrowings thereunder. Any of EIG Investors’ future debt agreements may contain similar provisions.

In addition, in certain circumstances following a non-ordinary course asset sale as specified in the indenture governing the Notes, EIG Investors may be required to commence an offer to purchase the Notes with the proceeds from the asset sale at a price equal to 100% of their principal amount plus accrued and unpaid interest. Our Senior Credit Facilities and any of EIG Investors' future debt agreements may contain restrictions that would limit or prohibit EIG Investors from completing any such offer. EIG Investors’ failure to purchase any such Notes when required under the indenture would be an event of default and a cross-default under our Senior Credit Facilities.

Risks Related to Ownership of Our Common Stock

Our stock price has been and may in the future be volatile, which could cause holders of our common stock to incur substantial losses.

The trading price of our common stock has been and may in the future be subject to substantial price volatility. As a result of this volatility, our stockholders could incur substantial losses. The market price of our common stock may fluctuate significantly in response to numerous factors, many of which are beyond our control, including the factors listed below and other factors described in this “Risk Factors” section:

• low trading volume, which could cause even a small number of purchases or sales of our stock to have an impact on the trading price of our common stock;

• price and volume fluctuations in the overall stock market from time to time;

• significant volatility in the market price and trading volume of comparable companies;

• actual or anticipated changes in our earnings or any financial projections we may provide to the public, or fluctuations in our operating results;

• changes in expectations for, or evaluations of, our stock by securities analysts, or decisions by securities or industry analysts not to publish or to cease publishing research or reports about us, our business or our market;

• ratings changes by debt ratings agencies;

• short sales, hedging and other derivative transactions involving our capital stock;

• announcements of technological innovations, new products, strategic alliances, or significant agreements by us or by our competitors;

• litigation or regulatory proceedings involving us; and

• recruitment or departure of key personnel.

Securities class action litigation is sometimes brought against companies that experience periods of volatility in the market price of their securities. In May 2015, a class action securities lawsuit was filed against us, and in August 2015, a separate class action securities lawsuit was filed against Constant Contact; both lawsuits remain pending. In the future we may be the target of additional securities litigation related to volatility in our stock, which could result in substantial costs and divert management’s attention and resources from our business.

Future sales of shares of our common stock could cause the market price of our common stock to drop significantly, even if our business is doing well.

A substantial portion of our issued and outstanding common stock can be traded without restriction at any time, and the remaining shares of our issued and outstanding common stock can be sold subject to volume limitations and other requirements applicable to affiliate sales under the federal securities laws. As such, sales of a substantial number of shares of our common stock in the public market could occur at any time. These sales, or the perception in the market that the holders of a large number of shares intend to sell shares, could reduce the market price of our common stock. In addition, we have registered 38,000,000 shares of common stock that have been issued or reserved for future issuance under our Amended and Restated 2013 Stock Incentive Plan and 14,346,830 shares of common stock that have been issued or reserved for future issuance under our Constant Contact, Inc. Second Amended and Restated 2011 Stock Incentive Plan. Of these shares, as of September 30, 2018, a total of 25,214,408 shares of our common stock are subject to outstanding options, restricted stock units and restricted stock awards, of which 16,437,823 shares are exercisable or have vested. The exercise of these options or the vesting of restricted stock units and shares of restricted stock and the subsequent sale of the common stock underlying such options or upon the vesting of such restricted stock units and restricted stock awards could cause a decline in our stock price. These sales also might make it difficult for us to sell equity securities in the future at a time and at a price that we deem appropriate. We

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cannot predict the size of future issuances or the effect, if any, that any future issuances may have on the market price for our common stock.

In addition, holders of an aggregate of 65,693,919 shares of our common stock have rights, subject to some conditions, to require us to file registration statements covering their shares or to include their shares in registration statements that we may file for ourselves or other stockholders. Once we register these shares, they can be freely sold in the public market upon issuance, subject to any applicable vesting requirements.

Insiders have substantial control over us, which could limit your ability to influence the outcome of key transactions, including a change of control.

As of September 30, 2018, our directors, executive officers and their affiliates beneficially own, in the aggregate, 50.3% of our issued and outstanding common stock. Specifically, investment funds and entities affiliated with Warburg Pincus own, in the aggregate, 36.6% of our issued and outstanding common stock, and investment funds and entities affiliated with Goldman Sachs own, in the aggregate, approximately 10.7% of our issued and outstanding common stock. As a result, these stockholders, if they act together, could have significant influence over the outcome of matters submitted to our stockholders for approval. Our stockholders’ agreement contains agreements among the parties with respect to certain matters, including the election of directors, and certain restrictions on our ability to effect specified corporate transactions. If these stockholders were to act together, they could have significant influence over the management and affairs of our company. This concentration of ownership may have the effect of delaying or preventing a change in control of our company and might affect the market price of our common stock. In particular, the significant ownership interest of investment funds and entities affiliated with Warburg Pincus and Goldman Sachs in our common stock could adversely affect investors’ perceptions of our corporate governance practices.

Anti-takeover provisions in our restated certificate of incorporation, our amended and restated bylaws and our stockholders agreement, as well as provisions of Delaware law, might discourage, delay or prevent a change in control of our company or changes in our management and, therefore, depress the trading price of our common stock.

Our restated certificate of incorporation, our amended and restated bylaws, our stockholders agreement and Delaware law contain provisions that may discourage, delay or prevent a merger, acquisition or other change in control that stockholders may consider favorable, including transactions in which you might otherwise receive a premium for your shares of our common stock. These provisions may also prevent or frustrate attempts by our stockholders to replace or remove our management. Our corporate governance documents include provisions:

• authorizing blank check preferred stock, which could be issued without stockholder approval and with voting, liquidation, dividend and other rights superior to our common stock;

• limiting the liability of, and providing indemnification to, our directors and officers;

• limiting the ability of our stockholders to call and bring business before special meetings;

• providing that any action required or permitted to be taken by our stockholders must be taken at a duly called annual or special meeting of such stockholders and may not be taken by any consent in writing by such stockholders;

• requiring advance notice of stockholder proposals for business to be conducted at meetings of our stockholders and for nominations of candidates for election to our board of directors, subject to limited exceptions set forth in our stockholders agreement;

• controlling the procedures for the conduct and scheduling of board of directors and stockholder meetings;

• providing our board of directors with the express power to postpone previously scheduled annual meetings and to cancel previously scheduled special meetings;

• establishing a classified board of directors so that not all members of our board are elected at one time;

• establishing Delaware as the exclusive jurisdiction for specified types of stockholder litigation involving us or our directors;

• providing that for so long as investment funds and entities affiliated with Warburg Pincus have the right to designate at least three directors for election to our board of directors, certain actions required or permitted to be taken by our stockholders, including amendments to our restated certificate of incorporation or amended and restated bylaws and certain specified corporate transactions, may be effected only with the affirmative vote of 75% of our board of directors, in addition to any other vote required by applicable law;

• providing that for so long as investment funds and entities affiliated with Warburg Pincus have the right to designate at least one director for election to our board of directors and for so long as investment funds and entities affiliated with Goldman Sachs have the right to designate one director for election to our board of directors, in each case, a quorum of our board of directors will not exist without at least one director designee of each of Warburg Pincus and Goldman Sachs present at such meeting, subject to limited exceptions set forth in our stockholders agreement;

• limiting the determination of the number of directors on our board of directors and the filling of vacancies or newly created seats on the board to our board of directors then in office; subject to limited exceptions set forth in our stockholders agreement; and

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• providing that directors may be removed by stockholders only for cause by the affirmative vote of the holders of at least 75% of the votes that all our stockholders would be entitled to cast in an annual election of directors; provided that any director designated by investment funds and entities affiliated with either Warburg Pincus or Goldman Sachs may be removed with or without cause only by Warburg Pincus or Goldman Sachs, respectively.

As a Delaware corporation, we are also subject to provisions of Delaware law, including Section 203 of the Delaware General Corporation Law, which prevents some stockholders holding more than 15% of our issued and outstanding common stock from engaging in certain business combinations without approval of the holders of substantially all of our issued and outstanding common stock. Since the investment funds and entities affiliated with Warburg Pincus and Goldman Sachs became holders of more than 15% of our issued and outstanding common stock in a transaction that was approved by our board of directors, the restrictions of Section 203 of the Delaware General Corporation law would not apply to a business combination transaction with any investment funds or entities affiliated with either Warburg Pincus or Goldman Sachs. In addition, our restated certificate of incorporation expressly exempts investment funds and entities affiliated with either Warburg Pincus or Goldman Sachs from the applicability of Section 203 of the Delaware General Corporation Law. Any provision of our restated certificate of incorporation or amended and restated bylaws or Delaware law that has the effect of delaying or deterring a change in control could limit the opportunity for our stockholders to receive a premium for their shares of our common stock and could also affect the price that some investors are willing to pay for our common stock.

The existence of the foregoing provisions and anti-takeover measures could limit the price that investors might be willing to pay in the future for shares of our common stock. They could also deter potential acquirers of our company, thereby reducing the likelihood that you could receive a premium for your common stock in an acquisition.

Certain of our stockholders have the right to engage or invest in the same or similar businesses as us.

Investment funds and entities affiliated with Warburg Pincus or Goldman Sachs, together, hold a significant interest in our company. Warburg Pincus, Goldman Sachs and their respective affiliates have other investments and business activities in addition to their ownership of our company. Warburg Pincus, Goldman Sachs and their respective affiliates have the right, and have no duty to abstain from exercising the right, to engage or invest in the same or similar businesses as us. To the fullest extent permitted by law, we have, on behalf of ourselves, our subsidiaries and our and their respective stockholders, renounced any interest or expectancy in, or in being offered an opportunity to participate in, any business opportunity that may be presented to Warburg Pincus, Goldman Sachs or any of their respective affiliates, partners, principals, directors, officers, members, managers, employees or other representatives, and no such person has any duty to communicate or offer such business opportunity to us or any of our subsidiaries or shall be liable to us or any of our subsidiaries or any of our or its stockholders for breach of any duty, as a director or officer or otherwise, by reason of the fact that such person pursues or acquires such business opportunity, directs such business opportunity to another person or fails to present such business opportunity, or information regarding such business opportunity, to us or our subsidiaries, unless, in the case of any such person who is a director or officer of ours, such business opportunity is expressly offered to such director or officer in writing solely in his or her capacity as a director or officer of ours.

We may not pay any dividends on our common stock for the foreseeable future.

We do not currently anticipate that we will pay any cash dividends to holders of our common stock in the foreseeable future. Instead, we expect to retain any earnings to invest in our business. In addition, our ability to pay cash dividends is currently limited by the terms of our Senior Credit Facilities and the indenture governing the Notes, and any future credit agreement may contain terms prohibiting or limiting the amount of dividends that may be declared or paid on our common stock. Accordingly, investors must rely on sales of their common stock after price appreciation, which may never occur, to realize any return on their investment.

ITEM 5. OTHER INFORMATION

Disclosures of Iranian Activities under Section 13(r) of the Exchange Act

Pursuant to Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012, or ITRA, which added Section 13(r) to the Exchange Act, we are required to disclose in our annual or quarterly reports, as applicable, whether we or any of our affiliates knowingly engaged in certain activities, transactions or dealings relating to Iran or with individuals or entities that are subject to sanctions under U.S. law. Disclosure is generally required even where the activities, transactions or dealings were conducted in compliance with applicable law.

On July 25, 2018, the Office of Foreign Assets Control, or OFAC, designated Electronics Katrangi Trading, or Katrangi, as a Specially Designated National, or SDN, pursuant to the Weapons of Mass Destruction Proliferators Sanctions Regulations, 31 C.F.R. Part 544.  On July 30, 2018, during a regular compliance scan of our user base, we identified the domain SGP-FRANCE.COM, or the Domain Name, which was listed as a website associated with Katrangi, on one of our platforms. The

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Domain Name was managed using one of our platforms by one of our reseller customers.  Accordingly, there was no direct financial transaction between us and the registered owner of the Domain Name and we did not generate any revenue in connection with the Domain Name since it was added to the SDN list on July 25, 2018.  Upon discovering the Domain Name on our platform, we promptly suspended the Domain Name and removed it from our platform.  We reported the Domain Name to OFAC on August 7, 2018.

ITEM 6. EXHIBITS

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Exhibit Number	Description of Exhibit	Incorporated by Reference				Filed Herewith
		Form	File Number	Date of Filing	Exhibit Number
2.1*	Agreement and Plan of Merger, dated October 30, 2015, by and among Constant Contact, Inc., the Registrant, and Paintbrush Acquisition Corporation	8-K	001-36131	November 2, 2015	2.1
3.1	Restated Certificate of Incorporation of the Registrant	S-1/A	333-191061	October 23, 2013	3.3
3.2	Amended and Restated By-Laws of the Registrant	8-K	001-36131	January 30, 2017	3.1
4.1	Specimen certificate evidencing shares of common stock of the Registrant	S-1/A	333-191061	October 8, 2013	4.1
4.2	Second Amended and Restated Registration Rights Agreement, dated as of October 24, 2013, by and among the Registrant and the other parties thereto	10-Q	001-36131	November 7, 2014	4.2
4.3	Stockholders Agreement, dated as of October 24, 2013, by and among the Registrant and certain holders of the Registrant’s common stock	10-Q	001-36131	November 7, 2014	4.3
4.4	Indenture (including form of Note), dated as of February 9, 2016, among EIG Investors Corp., the Registrant, the Endurance Guarantors party thereto and Wilmington Trust, National Association, as trustee	8-K	001-36131	February 10, 2016	4.1
4.5	Exchange and Registration Rights Agreement, dated as of February 9, 2016, among EIG Investors Corp., the Registrant, the Endurance Guarantors party thereto, Goldman, Sachs & Co., Credit Suisse Securities (USA) LLC and Jefferies LLC	10-Q	001-36131	May 9, 2016	4.6
31.1	Certification of Principal Executive Officer Pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as amended					X
31.2	Certification of Principal Financial Officer Pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as amended					X
32.1	Certification of Principal Executive Officer Pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002					X
32.2	Certification of Principal Financial Officer Pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002					X
101.INS	XBRL Instance Document					X
101.SCH	XBRL Taxonomy Extension Schema Document					X
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document					X
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document					X
101.LAB	XBRL Taxonomy Extension Label Linkbase Document					X
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document					X

* Schedules have been omitted pursuant to Item 601(b)(2) of Regulation S-K. Endurance agrees to furnish supplementally to the Securities and Exchange Commission a copy of any omitted schedule or exhibit upon request.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	ENDURANCE INTERNATIONAL GROUP HOLDINGS, INC.
Date: November 2, 2018	By:	/s/ Marc Montagner
		Marc Montagner
		Chief Financial Officer (Principal Financial Officer)

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EX-31.1

Exhibit 31.1

CERTIFICATION

I, Jeffrey H. Fox, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Endurance International Group Holdings, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 2, 2018	By:	/s/ Jeffrey H. Fox
		Jeffrey H. Fox Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Marc Montagner, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Endurance International Group Holdings, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 2, 2018	By:	/s/ Marc Montagner
		Marc Montagner Chief Financial Officer (Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Endurance International Group Holdings, Inc. for the fiscal quarter ended September 30, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Jeffrey H. Fox, Chief Executive Officer of Endurance International Group Holdings, Inc., hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge on the date hereof:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Endurance International Group Holdings, Inc.

Date: November 2, 2018	By:	/s/ Jeffrey H. Fox
		Jeffrey H. Fox Chief Executive Officer (Principal Executive Officer)

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Endurance International Group Holdings, Inc. for the fiscal quarter ended September 30, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Marc Montagner, Chief Financial Officer of Endurance International Group Holdings, Inc., hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge on the date hereof:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Endurance International Group Holdings, Inc.

Date: November 2, 2018	By:	/s/ Marc Montagner
		Marc Montagner Chief Financial Officer (Principal Financial Officer)

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Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Oct. 29, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Trading Symbol	EIGI
Entity Registrant Name	Endurance International Group Holdings, Inc.
Entity Central Index Key	0001237746
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding		143,855,398

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 89,674	$ 66,493
Restricted cash	1,832	2,625
Accounts receivable	14,105	15,945
Prepaid domain name registry fees	57,114	53,805
Prepaid commissions	41,744	0
Prepaid expenses and other current assets	27,101	29,327
Total current assets	231,570	168,195
Property and equipment—net	79,315	95,452
Goodwill	1,849,264	1,850,582
Other intangible assets—net	377,670	455,440
Deferred financing costs—net	2,879	3,189
Investments	15,266	15,267
Prepaid domain name registry fees, net of current portion	11,337	10,806
Prepaid commissions, net of current portion	42,081	0
Other assets	9,021	2,155
Total assets	2,618,403	2,601,086
Current liabilities:
Accounts payable	10,812	11,058
Accrued expenses	70,204	79,991
Accrued interest	15,109	24,457
Deferred revenue	380,564	361,940
Current portion of notes payable	31,606	33,945
Current portion of capital lease obligations	7,595	7,630
Deferred consideration—short term	2,386	4,365
Other current liabilities	3,753	4,031
Total current liabilities	522,029	527,417
Long-term deferred revenue	96,419	90,972
Notes payable—long term, net of original issue discounts of $25,811 and $22,445 and deferred financing costs of $37,736 and $33,515, respectively	1,792,436	1,858,300
Capital lease obligations—long term	2,067	7,719
Deferred tax liability	36,498	19,696
Deferred consideration—long term	1,342	3,551
Other liabilities	11,014	10,426
Total liabilities	2,461,805	2,518,081
Stockholders’ equity:
Preferred Stock—par value $0.0001; 5,000,000 shares authorized; no shares issued or outstanding	0	0
Common Stock—par value $0.0001; 500,000,000 shares authorized; 140,190,695 and 143,306,748 shares issued at December 31, 2017 and September 30, 2018, respectively; 140,190,695 and 143,306,411 outstanding at December 31, 2017 and September 30, 2018, respectively	14	14
Additional paid-in capital	953,971	931,033
Accumulated other comprehensive loss	(1,034)	(541)
Accumulated deficit	(796,353)	(847,501)
Total stockholders’ equity	156,598	83,005
Total liabilities and stockholders’ equity	$ 2,618,403	$ 2,601,086

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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Notes payable-long term original issue discounts, net	$ 22,445	$ 25,811
Deferred financing costs	$ 33,515	$ 37,736
Preferred stock, par value (in usd per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	143,306,748	140,190,695
Common stock, shares outstanding (in shares)	143,306,411	140,190,695

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Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Revenue	$ 283,770	$ 295,222	$ 862,896	$ 882,617
Cost of revenue	128,945	158,865	393,597	454,197
Gross profit	154,825	136,357	469,299	428,420
Operating expense:
Sales and marketing	63,831	66,276	197,733	211,154
Engineering and development	22,683	19,882	64,559	60,393
General and administrative	25,693	51,269	95,212	130,929
Transaction expenses and charges	0	0	0	773
Total operating expense	112,207	137,427	357,504	403,249
(Loss) income from operations	42,618	(1,070)	111,795	25,171
Other income (expense):
Other income (expense), net	0	(600)	0	(600)
Interest income	289	203	720	506
Interest expense	(37,527)	(35,848)	(111,923)	(121,022)
Total other expense—net	(37,238)	(36,245)	(111,203)	(121,116)
(Loss) income before income taxes and equity earnings of unconsolidated entities	5,380	(37,315)	592	(95,945)
Income tax expense	11,715	2,982	8,826	11,384
Loss before equity earnings of unconsolidated entities	(6,335)	(40,297)	(8,234)	(107,329)
Equity (income) loss of unconsolidated entities, net of tax	0	(33)	2	(72)
Net loss	(6,335)	(40,264)	(8,236)	(107,257)
Net loss attributable to non-controlling interest	0	0	0	277
Excess accretion of non-controlling interest	0	0	0	7,247
Total net loss attributable to non-controlling interest	0	0		7,524
Net loss attributable to Endurance International Group Holdings, Inc.	(6,335)	(40,264)	(8,236)	(114,781)
Comprehensive income (loss):
Foreign currency translation adjustments	(644)	1,070	(2,489)	2,984
Unrealized gain (loss) on cash flow hedge, net of taxes of $48 and $256, and $(182) and $626 for the three and nine months ended September 30, 2017 and 2018, respectively	812	83	1,996	(309)
Total comprehensive (loss) income	$ (6,167)	$ (39,111)	$ (8,729)	$ (112,106)
Earnings Per Share, Basic and Diluted
Basic net income (loss) per share (in usd per share)	$ (0.04)	$ (0.29)	$ (0.06)	$ (0.84)
Diluted net income (loss) per share (in usd per share)	$ (0.04)	$ (0.29)	$ (0.06)	$ (0.84)
Weighted-average common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:
Weighted average number of basic shares outstanding (in shares)	143,107,122	137,793,609	141,946,574	136,688,115
Weighted average number of diluted shares outstanding (in shares)	143,107,122	137,793,609	141,946,574	136,688,115

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Consolidated Statements of Operations and Comprehensive Loss (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Unrealized gain (loss) arising during period, tax	$ 256	$ 48	$ 626	$ (182)

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Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net loss	$ (8,236,000)	$ (107,257,000)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation of property and equipment	36,753,000	40,733,000
Amortization of other intangible assets	77,890,000	104,554,000
Impairment of long lived assets	0	13,848,000
Impairment of investments	0	600,000
Amortization of deferred financing costs	4,708,000	5,403,000
Amortization of net present value of deferred consideration	311,000	504,000
Dividend from minority interest	0	100,000
Amortization of original issue discounts	3,209,000	2,791,000
Stock-based compensation	21,932,000	48,749,000
Deferred tax expense (benefit)	8,839,000	6,442,000
(Gain) loss on sale of assets	191,000	(317,000)
(Gain) loss of unconsolidated entities	2,000	(72,000)
Financing costs expensed	1,228,000	5,487,000
Loss on early extinguishment of debt	331,000	992,000
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	1,687,000	(872,000)
Prepaid expenses and other current assets	(3,033,000)	(510,000)
Accounts payable and accrued expenses	(15,721,000)	(7,309,000)
Deferred revenue	3,502,000	15,000,000
Net cash provided by operating activities	133,593,000	128,866,000
Cash flows from investing activities:
Purchases of property and equipment	(22,343,000)	(32,095,000)
Proceeds from sale of assets	6,000	292,000
Purchases of intangible assets	0	(1,966,000)
Net cash used in investing activities	(22,337,000)	(33,769,000)
Cash flows from financing activities:
Proceeds from issuance of term loan and notes, net of original issue discounts	1,580,305,000	1,693,007,000
Repayments of term loans	(1,656,094,000)	(1,733,147,000)
Payment of financing costs	(1,580,000)	(6,304,000)
Payment of deferred consideration	(4,500,000)	(5,408,000)
Payment of redeemable non-controlling interest liability	0	(25,000,000)
Principal payments on capital lease obligations	(5,609,000)	(5,679,000)
Proceeds from exercise of stock options	756,000	1,548,000
Net cash used in financing activities	(86,722,000)	(80,983,000)
Net effect of exchange rate on cash and cash equivalents and restricted cash	(2,146,000)	2,156,000
Net increase in cash and cash equivalents and restricted cash	22,388,000	16,270,000
Cash and cash equivalents and restricted cash:
Beginning of period	69,118,000	56,898,000
End of period	91,506,000	73,168,000
Supplemental cash flow information:
Interest paid	110,139,000	118,276,000
Income taxes paid	$ 3,725,000	$ 3,958,000

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Nature of Business

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Nature of Business

Nature of Business

Formation and Nature of Business

Endurance International Group Holdings, Inc. (“Holdings”) is a Delaware corporation, which, together with its wholly owned subsidiary company, EIG Investors Corp. (“EIG Investors”), its primary operating subsidiary company, The Endurance International Group, Inc. (“EIG”), and other subsidiaries of EIG, collectively form the “Company.” The Company is a leading provider of cloud-based platform solutions designed to help small- and medium-sized businesses succeed online.

EIG and EIG Investors were incorporated in April 1997 and May 2007, respectively, and Holdings was originally formed as a limited liability company in October 2011 in connection with the acquisition of a controlling interest in EIG Investors, EIG and EIG's subsidiaries by investment funds and entities affiliated with Warburg Pincus and Goldman, Sachs & Co. on December 22, 2011. On November 7, 2012, Holdings reorganized as a Delaware limited partnership and on June 25, 2013, Holdings converted into a Delaware C-corporation and changed its name to Endurance International Group Holdings, Inc.

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Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Basis of Preparation

The accompanying consolidated financial statements, which include the accounts of the Company and its subsidiaries, have been prepared using accounting principles generally accepted in the United States of America (“U.S. GAAP”). All intercompany transactions were eliminated on consolidation.

Segment Information

From the fourth quarter of fiscal year 2016, through the third quarter of fiscal year 2017, the Company had two reportable segments, web presence and email marketing. The Company experienced significant changes in its management structure during fiscal year 2017, including a change in its chief executive officer, who is the Company's chief operating decision maker ("CODM"). The Company's leadership structure has been revised to centralize management of certain domain-focused brands in order to improve overall performance. As a result of these management changes, management has revised internal financial reporting structures, and broken the former web presence segment into two reportable segments, web presence and domains. The Company's third reportable segment, email marketing, remains unchanged.

The products and services included in each of the three reportable segments are as follows:

Web Presence. The web presence segment consists primarily of the Company's web hosting brands, such as Bluehost and HostGator, and related products such as domain names, website security, website design tools and services, and e-commerce products.

Domain. The domain segment consists of domain-focused brands such as Domain.com, ResellerClub and LogicBoxes as well as certain web hosting brands that are under common management with domain-focused brands. This segment sells domain names and domain management services to resellers and end users, as well as premium domain names, and also generates advertising revenue from domain name parking. It also resells domain names and domain management services to the web presence segment.

Email Marketing. The email marketing segment consists of Constant Contact email marketing tools and related products and the SinglePlatform digital storefront solution.

The Company's segments share certain resources, primarily related to sales and marketing, engineering and general and administrative functions. Management allocates these costs to each respective segment based on a consistently applied methodology, primarily based on a percentage of revenue.

The Company has revised amounts reported for gross profit, net loss and adjusted EBITDA for the web presence and the domain segments in the segment disclosures, which impacted fiscal years 2016 and 2017. The amounts reported for the email marketing segment were not impacted. The revisions arose because of an error in the classification of certain domain registration expenses. Domain segment gross profit, net income (loss) and adjusted EBITDA were overstated by $3.0 million for fiscal year 2016, and by $6.9 million for fiscal year 2017, and web presence segment gross profit, net income (loss) and adjusted EBITDA were understated by equal amounts. Consolidated results were not impacted by this misstatement. See Note 21, Segment Information, for further details.

Use of Estimates

U.S. GAAP requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets, liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. These estimates, judgments and assumptions used in preparing the accompanying consolidated financial statements are based on the relevant facts and circumstances as of the date of the consolidated financial statements. Although the Company regularly assesses these estimates, judgments and assumptions used in preparing the consolidated financial statements, actual results could differ from those estimates. Changes in estimates are recorded in the period in which they become known. The more significant estimates reflected in these consolidated financial statements include estimates of fair value of assets acquired and liabilities assumed under purchase accounting related to the Company’s acquisitions and when evaluating goodwill and long-lived assets for potential impairment, the estimated useful lives of intangible and depreciable assets, revenue recognition for multiple-element arrangements, stock-based compensation, contingent consideration, derivative instruments, certain accruals, reserves and deferred taxes.

Unaudited Interim Financial Information

The accompanying interim consolidated balance sheet as of September 30, 2018, and the related consolidated statements of operations and comprehensive loss for the three and nine months ended September 30, 2017 and 2018, cash flows for the nine months ended September 30, 2017 and 2018, and the notes to consolidated financial statements are unaudited. These unaudited consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements. The unaudited consolidated financial statements include, in the opinion of management, all adjustments, consisting only of normal recurring adjustments that are necessary for a fair presentation of the Company’s financial position at September 30, 2018, results of operations for the three and nine months ended September 30, 2017 and 2018 and cash flows for the nine months ended September 30, 2017 and 2018. The consolidated results in the consolidated statements of operations and comprehensive loss are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2018.

Cash Equivalents

Cash and cash equivalents include all highly liquid investments with remaining maturities of three months or less at the date of purchase.

Restricted Cash

Restricted cash is composed of certificates of deposit and cash held by merchant banks and payment processors, which provide collateral against any chargebacks, fees, or other items that may be charged back to the Company by credit card companies and other merchants, and collateral for certain facility leases.

Accounts Receivable

Accounts receivable is primarily composed of cash due from credit card companies for unsettled transactions charged to subscribers’ credit cards. As these amounts reflect authenticated transactions that are fully collectible, the Company does not maintain an allowance for doubtful accounts. The Company also accrues for earned referral fees and commissions, which are governed by reseller or affiliate agreements, when the amount is reasonably estimable.

Prepaid Domain Name Registry Fees

Prepaid domain name registry fees represent amounts that are paid in full at the time a domain is registered by one of the Company’s registrars on behalf of a customer. The registry fees are recognized on a straight-line basis over the term of the domain registration period.

Fair Value of Financial Instruments

The carrying amounts of the Company's financial instruments, which include cash equivalents, accounts receivable, accounts payable and certain accrued expenses, approximate their fair values due to their short maturities. The fair value of the Company's notes payable is based on the borrowing rates currently available to the Company for debt with similar terms and average maturities and approximates their carrying value.

Derivative Instruments and Hedging Activities

FASB Accounting Standards Codification ("ASC") 815, Derivatives and Hedging, or ASC 815, provides the disclosure requirements for derivatives and hedging activities with the intent to provide users of financial statements with an enhanced understanding of: (a) how and why an entity uses derivative instruments, (b) how the entity accounts for derivative instruments and related hedged items, and (c) how derivative instruments and related hedged items affect an entity’s financial position, financial performance, and cash flows. Further, qualitative disclosures are required that explain the Company’s objectives and strategies for using derivatives, as well as quantitative disclosures about the fair value of and gains and losses on derivative instruments, and disclosures about credit-risk-related contingent features in derivative instruments.

As required by ASC 815, the Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Derivatives may also be designated as hedges of the foreign currency exposure of a net investment in a foreign operation. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain of its risks, even though hedge accounting does not apply or the Company elects not to apply hedge accounting.

In accordance with the FASB’s fair value measurement guidance in FASB Accounting Standards Update ("ASU") 2011-4, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements, the Company made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.

Property and Equipment

Property and equipment is recorded at cost or fair value if acquired in an acquisition. The Company also capitalizes the direct costs of constructing additional computer equipment for internal use, as well as upgrades to existing computer equipment which extend the useful life, capacity or operating efficiency of the equipment. Capitalized costs include the cost of materials, shipping and taxes. Materials used for repairs and maintenance of computer equipment are expensed and recorded as a cost of revenue. Materials on hand and construction-in-process are recorded as property and equipment. Assets recorded under capital lease are depreciated over the lease term. Depreciation is computed using the straight-line method over the estimated useful lives of the related assets as follows: 

Building	Thirty-five years
Software	Two to three years
Computers and office equipment	Three years
Furniture and fixtures	Five years
Leasehold improvements	Shorter of useful life or remaining term of the lease

Software Development Costs

The Company accounts for software development costs for internal-use software under the provisions of ASC 350-40, Internal-Use Software. Accordingly, certain costs to develop internal-use computer software are capitalized, provided these costs are expected to be recoverable. During the three and nine months ended September 30, 2017, the Company capitalized internal-use software development costs of $2.2 million and $8.4 million, respectively. During the three and nine months ended September 30, 2018, the Company capitalized internal-use software costs of $2.8 million and $7.1 million, respectively.

Goodwill

Goodwill relates to amounts that arose in connection with the Company’s various business combinations and represents the difference between the purchase price and the fair value of the identifiable intangible and tangible net assets when accounted for using the purchase method of accounting. Goodwill is not amortized, but is subject to periodic review for impairment. Events that would indicate impairment and trigger an interim impairment assessment include, but are not limited to, current economic and market conditions, including a decline in the equity value of the Company's business, a significant adverse change in agreements that would materially affect reported operating results, business climate or operational performance of the business and an adverse action or assessment by a regulator. Additionally, a reorganization or change in the number of reporting units could result in the reassignment of goodwill between reporting units and may trigger an impairment assessment.

In accordance with ASC 350, Intangibles—Goodwill and Other, or ASC 350, the Company is required to review goodwill by reporting unit for impairment at least annually or more often if there are indicators of impairment present. Under U.S. GAAP, a reporting unit is either the equivalent of, or one level below, an operating segment. The Company has historically performed its annual goodwill test as of December 31 of each fiscal year.

As a result of changes in the Company’s management structure during fiscal year 2017, including the change in its chief executive officer / CODM, the Company has revised its internal financial reporting structure, which has resulted in a change to its reporting units. The Company has identified a total of ten reporting units under the new structure. With the increase in reporting units, the Company determined that more time would be required to perform future goodwill impairment tests, and as a result, decided to accelerate its annual goodwill impairment test date to October 31 of each fiscal year, starting with the fiscal year 2017 test.

Before testing goodwill at October 31, 2017, the Company allocated assets and liabilities to their respective reporting units. Goodwill was allocated to each reporting unit in accordance with ASC 350-20-40, which requires that goodwill be allocated based on the relative fair values of each reporting unit. After completing this valuation process, the Company allocated goodwill to seven reporting units. The Company did not allocate any goodwill to three smaller reporting units that were determined to have no material fair value.

The carrying value of each reporting unit is based on the assignment of the appropriate assets and liabilities to each reporting unit. Assets and liabilities were assigned to each reporting unit if the assets or liabilities are employed in the operations of the reporting unit and the asset and liability is considered in the determination of the reporting unit fair value. Certain assets and liabilities are shared by multiple reporting units, and were allocated to each reporting unit based on the relative size of a reporting unit, primarily based on revenue.

The fair value of each reporting unit is determined by the income approach. The Company also compared the fair value from the income approach to a market based approach to validate that the value derived from the income approach was reasonable. For the income approach, fair value is determined based on the present value of estimated future after-tax cash flows, discounted at an appropriate risk adjusted rate. The Company uses internal forecasts to estimate future after-tax cash flows, which includes an estimate of long-term future growth rates based on the long-term outlook for each reporting unit. Actual results may differ from those assumed in each forecast.

The Company derives discount rates using a capital asset pricing model and analyzing published rates for industries relevant to the reporting units to estimate the weighted average cost of capital. The Company uses discount rates that are commensurate with the risks and uncertainty inherent in the business and in internally developed forecasts. For fiscal year 2017, the Company used a discount rate of 10.0%, and also performed sensitivity analysis on the discount rates. For the market approach validation, values were derived based on valuation multiples from sales of comparable companies.

The Company has also early adopted the provisions of ASU 2017-4, which eliminates the second step of the goodwill impairment test. As a result, the goodwill impairment test as of October 31, 2017 includes only one step, which is a comparison of the carrying value of each reporting unit to its fair value, and any excess carrying value, up to the amount of goodwill allocated to that reporting unit, is impaired. The goodwill impairment test as of October 31, 2017 resulted in a $12.1 million impairment of goodwill to the Company's domain monetization reporting unit within the domain segment. The impairment is a direct result of a more rapid decline in domain parking revenue than originally expected, and to a lesser extent, reduced sales of premium domain names. Goodwill for this reporting unit has been completely impaired. Goodwill allocated to the other six reporting units was not impaired.

Goodwill as of December 31, 2017 was $1,850.6 million. Approximately $1,820.7 million of this goodwill relates to reporting units where fair value exceeds the carrying value of the respective reporting unit by at least 20%. One reporting unit, the domain.com reporting unit within the domain segment, has a goodwill balance of $29.9 million, and a fair value that exceeds its carrying value by 6%. The Company has one reporting unit, the cloud backup reporting unit within the web presence segment, that has a negative carrying value and has been allocated $2.3 million of goodwill.

During the quarter ended March 31, 2018, the Company further adjusted management responsibilities regarding certain reporting units, which resulted in additional adjustments to internal financial reporting structures. The total number of reporting units remains at ten, however, goodwill was reallocated between reporting units as a result of this change. The Company estimated the amount of goodwill to be reallocated at $48.0 million. The Company tested goodwill for impairment based on the goodwill reallocation. No impairment charge was identified as a result of this test.

Goodwill as of September 30, 2018 is $1,849.3 million. The carrying value of goodwill that was allocated to the domain, email marketing and web presence reporting segments was $29.9 million, $604.3 million and $1,215.1 million, respectively. For the three and nine months ended September 30, 2018, no impairment triggering events were identified and no impairment has been recorded.

Long-Lived Assets

The Company’s long-lived assets consist primarily of intangible assets, including acquired subscriber relationships, trade names, intellectual property, developed technology, domain names available for sale and in-process research and development (“IPR&D”). The Company also has long-lived tangible assets, primarily consisting of property and equipment. The majority of the Company’s intangible assets are recorded in connection with its various acquisitions. The Company’s intangible assets are recorded at fair value at the time of their acquisition. The Company amortizes intangible assets over their estimated useful lives.

Determination of the estimated useful lives of the individual categories of intangible assets is based on the nature of the applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with finite lives other than developed technology is recognized in accordance with their estimated projected cash flows.

The Company evaluates long-lived intangible and tangible assets whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If indicators of impairment are present and undiscounted future cash flows are less than the carrying amount, the fair value of the assets is determined and compared to the carrying value. If the fair value is less than the carrying value, then the carrying value of the asset is reduced to the estimated fair value and an impairment loss is charged to expense in the period the impairment is identified. During the three and nine months ended September 30, 2017, the Company recognized an impairment charge of $13.8 million relating to certain domain name intangible assets acquired in 2014, which was recorded in cost of revenue in the consolidated statements of operations and comprehensive loss. The impairment resulted from diminished cash flows associated with this intangible asset. No such impairment losses have been identified in the three and nine months ended September 30, 2018.

Indefinite life intangible assets include domain names that are available for sale which are recorded at cost to acquire. These assets are not being amortized and are being tested for impairment annually and whenever events or changes in circumstance indicate that their carrying value may not be recoverable. When a domain name is sold, the Company records the cost of the domain in cost of revenue.

Acquired In-Process Research and Development (IPR&D)

Acquired IPR&D represents the fair value assigned to research and development assets that the Company acquires in connection with business combinations that have not been completed at the date of acquisition. The acquired IPR&D is capitalized as an intangible asset and reviewed on a quarterly basis to determine future use. Any impairment loss of the acquired IPR&D is charged to expense in the period the impairment is identified. No impairment loss was identified during the nine months ended September 30, 2017 and 2018.

Revenue Recognition

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), or ASU 2014-09 or ASC 606, which supersedes nearly all existing revenue recognition guidance under U.S. GAAP. Since then, the FASB has also issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606), Principals versus Agent Considerations, ASU 2016-10, Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing, and ASU 2017-13, Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Amendments to SEC Paragraphs Pursuant to the Staff Announcement at the July 20, 2017 EITF Meeting and Rescission of Prior SEC Staff Announcements and Observer Comments, which further elaborate on the original ASU No. 2014-09. The Company adopted the guidance in ASC 606 on January 1, 2018. Revenue is recognized when control of the promised products or services is transferred to the Company’s customers, in an amount that reflects the consideration the Company expects to be entitled to for those products and services. In general, the Company determines revenue recognition through the following steps:

• Identification of the contract, or contracts, with the customer

• Identification of the performance obligations in the contract

• Determination of the transaction price

• Allocation of the transaction price to the performance obligations in the contract

• Recognition of revenue when, or as, the Company satisfies a performance obligation.

The Company provides cloud-based subscription services, which include website hosting and related add-ons, search engine optimization (SEO) services, domain registration services and email marketing.

Website hosting gives subscribers access to an environment where the Company hosts a customer’s website. The related contract terms are generally for one year, but can range from 30 days to 3 years. Website hosting services are typically sold in bundled offerings that include website hosting, domain registration services and various add-ons. The Company recognizes revenue for website hosting and domain registration services over the term of the contract.

The main add-on services related to website hosting are domain privacy, secure sockets layer (SSL) security, site backup and restoration, and website builder tools. These services may be included in website hosting bundles, or they may be purchased on a standalone basis. Certain add-on services are provided by third parties. In cases where the Company is acting as an agent for the sale of third party add-on services, the Company recognizes revenue on a net basis at the time of sale. In cases where the Company is acting as a principal for the sale of third party add-on services (i.e., the Company has the primary responsibility to provide specific goods or services, it has discretion to establish prices and it may assume inventory risk), the Company recognizes revenue on a gross basis over the term of the contract. The revenue for Company-provided add-on services is primarily recognized over the term of the contract.

SEO services are monthly subscriptions that provide a customer with increased traffic to their website over the term of the subscription. Revenue from SEO services is recognized over the monthly term of the contract.

In the case of domain registration services, the Company is an accredited registrar and can provide registration services to the customer, or it can select an accredited third party registrar to perform these duties. Domain registration services are generally annual subscriptions, but can cover multiple years. Revenue for these services is recognized over time.

Email marketing services provide subscribers with a cloud based platform that can send broadcast emails to a customer list managed by the subscriber. Pricing is based on contract list volume from the prior monthly period, which determines the contractual billing price for the upcoming month. Revenue for this service is recognized over the monthly term of the contract.

Non-subscription based services include certain professional services, primarily website design or re-design services, marketing development fund revenue ("MDF"), premium domain names and domain parking services.

Website design and re-design services are recognized when the service is complete.

Marketing development funds consist of commissions earned by the Company when a third party sells its products or services directly to the Company’s subscribers, and advertising revenue for third party ads placed on Company websites. The Company records revenue when the service is provided and calculates it based on the contractual revenue share arrangement or over the term of the advertisement.

Domain parking allows the Company to monetize certain of its premium domain names by loaning them to specialized third parties that generate advertising revenue from these parked domains on a pay per click ("PPC") basis. Revenue is recognized when earned and calculated based on the revenue share arrangement with the third party.

Revenue from the sale of premium domains is recognized when persuasive evidence of an arrangement to sell such domains exists and delivery of an authorization key to access the domain name has occurred. Premium domain names are paid for in advance prior to the delivery of the domain name.

For most of the Company’s performance obligations, the customer simultaneously receives and consumes the service over a period of time as the Company performs the service, resulting in the recognition of revenue over the subscription period. This method provides an appropriate depiction of the timing of the transfer of services to the customer. In limited instances, the customer obtains control of the promised service at a point in time, with no future obligations on the part of the Company. In these instances, the Company recognizes revenue at the point in time control is transferred. The contracts that the Company enters into typically do not contain any variable or non-cash considerations.

The Company maintains a reserve for refunds and chargebacks related to revenue that has been recognized and is expected to be refunded, as calculated based on observed historical trends. The Company had a refund and chargeback reserve of $0.5 million and $0.3 million as of December 31, 2017 and September 30, 2018, respectively. The portion of deferred revenue that is expected to be refunded at December 31, 2017 and September 30, 2018 was $1.8 million and $1.8 million, respectively. Based on refund history, approximately 83% of all refunds happen in the same fiscal month that the contract starts or renews, and approximately 96% of all refunds happen within 45 days of the contract start or renewal date.

The Company did not apply any practical expedients during its adoption of ASC 606. The Company elected to use the portfolio method in the calculation of the deferred contract assets.

Contracts with Multiple Performance Obligations

A considerable amount of the Company’s revenue is generated from transactions that are contracts with customers that may include hosting plans, domain name registrations, and other cloud-based products and services. In these cases, the Company determines whether the products and services are distinct performance obligations that should be accounted for separately versus together. The Company allocates revenue to each performance obligation based on its relative standalone selling price, generally based on the price charged to customers. Hosting services, domain name registrations, and other cloud-based products and services have distinct performance obligations and are often sold separately. If the promise is not distinct and therefore not a performance obligation, then the total transaction amount is allocated to the identified performance obligation based on a relative selling price hierarchy. When multiple performance obligations are included in a contract, the total transaction amount for the contract is allocated to the performance obligations based on a relative selling price hierarchy. The Company determines the relative selling price for a performance obligation based on standalone selling price (“SSP”). The Company determines SSP by considering its observed standalone selling prices, competitive prices in the marketplace and management judgment; these standalone selling prices may vary depending upon the particular facts and circumstances related to each deliverable. The Company analyzes the standalone selling prices used in its allocation of transaction amount, at a minimum, on a quarterly basis.

Deferred Revenue

The Company records deferred revenue when cash payments are received or are due in advance of the Company’s performance, including amounts that are refundable. The change in the deferred revenue balance for the nine months ended September 30, 2018 is primarily driven by cash payments received or due in advance of the Company satisfying its performance obligations, offset by $331.9 million of revenue recognized that were included in the deferred revenue balance at the beginning of the period.

The following table provides a reconciliation of the Company's deferred revenue as of September 30, 2018:

	Short-term			Long-term
	(in thousands)
Balance at December 31, 2017	$	361,940		$	90,972
Effect of adoption of ASC 606 to balances at December 31, 2017	20,275			2,882
Recognition of the beginning deferred revenue into revenue, as a result of performance obligations satisfied	(331,939		)	—
Cash received in advance during the period	657,821			193,119
Recognition of cash received in the period into revenue, as a result of performance obligations satisfied	(518,087		)	—
Reclassification between short-term and long-term	190,554			(190,554		)
Balance at September 30, 2018	$	380,564		$	96,419

The difference between the opening and closing balances of the Company’s deferred liabilities primarily results from the timing difference between the Company’s performance and the customer’s payment. During the nine months ended September 30, 2018, the Company recognized $331.9 million and $0.0 million, respectively, from beginning deferred revenue current and long-term balances existing at December 31, 2017. The Company did not recognize any revenue from performance obligations satisfied in prior periods.

The following table provides the remaining performance obligation amounts as of September 30, 2018. These amounts are equivalent to the ending deferred revenue balance of $477.0 million, which includes both short and long-term amounts:

	Web presence		Email marketing		Domain		Total
	(in thousands)
Remaining performance obligation, short-term	$	265,984	$	55,055	$	59,525	$	380,564
Remaining performance obligation, long-term	81,805		—		14,614		96,419
Total	$	347,789	$	55,055	$	74,139	$	476,983

This backlog of revenue related to future performance obligations is prepaid by customers and supported by executed contracts with customers. The Company has established a reserve of $0.3 million for refunds and chargebacks, 96% of which is expected to materialize in the first 45 days. The remainder of the deferred revenue is expected to be recognized in future periods.

Deferred Customer Acquisition Costs

As a result of the implementation of ASC 606, the Company now capitalizes the incremental costs directly related to obtaining and fulfilling a contract (such as sales commissions and certain direct sales and marketing success based costs), if these costs are expected to be recovered. These costs are amortized over the period the services are transferred to the customer, which is estimated based on customer churn rates for various segments of the business. The Company includes only those incremental costs that would not have been incurred if the contracts had not been entered into:

	Short-term			Long-term
	(in thousands)
Balance at December 31, 2017	$	—		$	—
Adjustments resulting from adoption of ASC 606	43,408			40,040
Deferred customer acquisition costs incurred in the period	13,391			25,307
Amounts recognized as expense in the period	(38,192		)	—
Impact of foreign exchange rates	(142		)	13
Reclassification between short-term and long-term	23,279			(23,279		)
Balance at September 30, 2018	$	41,744		$	42,081

As of September 30, 2018, the Company has a total of $71.0 million in deferred assets relating to costs incurred to obtain or fulfill contracts in its web presence segment, consisting of $0.0 million of incremental, recoverable sales and marketing costs, and $71.0 million of recoverable, specific, success-based sales commissions. As of September 30, 2018, the Company has a total of $11.4 million deferred assets relating to costs incurred to obtain or fulfill contracts in its email marketing segment, consisting of $0.0 million of incremental, recoverable sales and marketing costs, and $11.4 million of recoverable, specific, success-based sales commissions. As of September 30, 2018, the Company has a total of $1.4 million deferred assets relating to costs incurred to obtain or fulfill contracts in its domain segment, consisting of $0.0 million of incremental, recoverable sales and marketing costs, and $1.4 million of recoverable, specific, success-based sales commissions. During the nine months ended September 30, 2018, the Company recognized total amortization costs related to the above items of $34.5 million, $3.4 million, and $0.3 million in its web presence, email marketing and domain segments, respectively.

Significant Judgments

The Company sells a number of third party cloud based services to enhance a subscriber’s overall website hosting experience. The Company exercises considerable judgment to determine if it is the principal or agent in each of these arrangements, and in some instances, has concluded that it is an agent of the third party and recognizes revenue at time of subscriber purchase in an amount that is net of the revenue share payable to the third party.

The Company exercises judgment to determine the standalone selling price for each distinct performance obligation. In instances where the standalone selling price is not directly observable, such as when the Company does not sell the product or service separately, the Company determines the standalone selling price using information that may include a competitive market assessment approach and other observable inputs. The Company typically has more than one standalone selling price for individual products and services.

Judgment is required to determine whether particular types of sales and marketing costs incurred, including commissions, are incremental and recoverable costs incurred to obtain and fulfill the customer contract. In addition, judgment is required to determine the life of the customer over which deferred customer acquisition costs are amortized.

Income Taxes

Income taxes are accounted for in accordance with ASC 740, Accounting for Income Taxes, or ASC 740. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry-forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

ASC 740 clarifies the accounting for income taxes by prescribing a minimum recognition threshold that a tax position is required to meet before being recognized in the financial statements. The Company recognizes the effect of income tax positions only if those positions are more likely than not to be sustained. Recognized income tax positions are measured at the largest amount that is more likely than not to be realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company had unrecognized tax benefits at December 31, 2017 and September 30, 2018 of $1.1 million and $2.9 million, respectively.

The Company records interest related to unrecognized tax benefits in interest expense and penalties in operating expenses. During the three and nine months ended September 30, 2017, the Company did not incur any interest and penalties related to unrecognized tax benefits. During the three months ended September 30, 2018, the Company recognized $0.1 million of interest and penalties related to unrecognized tax benefits. During the nine months ended September 30, 2018, the Company recognized $0.3 million of interest and penalties related to unrecognized tax benefits.

Stock-Based Compensation

The Company may issue restricted stock units, restricted stock awards and stock options which vest upon the satisfaction of a performance condition and/or a service condition. The Company follows the provisions of ASC 718, Compensation—Stock Compensation, or ASC 718, which requires employee stock-based payments to be accounted for under the fair value method. Under this method, the Company is required to record compensation cost based on the estimated fair value for stock-based awards granted over the requisite service periods for the individual awards, which generally equals the vesting periods, net of estimated forfeitures. The Company uses the straight-line amortization method for recognizing stock-based compensation expense. In addition, for stock-based awards where vesting is dependent upon achieving certain performance goals, the Company estimates the likelihood of achieving the performance goals against established performance targets.

The Company estimates the fair value of employee stock options on the date of grant using the Black-Scholes option-pricing model, which requires the use of highly subjective estimates and assumptions. For restricted stock awards and restricted stock units granted, the Company estimates the fair value of each restricted stock award or restricted stock unit based on the closing trading price of its common stock on the date of grant.

Net Loss per Share

The Company considered ASC 260-10, Earnings per Share, or ASC 260-10, which requires the presentation of both basic and diluted earnings per share in the consolidated statements of operations and comprehensive loss. The Company’s basic net loss per share is computed by dividing net loss by the weighted average number of shares of common stock outstanding for the period, and, if there are dilutive securities, diluted income per share is computed by including common stock equivalents which includes shares issuable upon the exercise of stock options, net of shares assumed to have been purchased with the proceeds, using the treasury stock method.

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2018			2017			2018
	(unaudited) (in thousands, except share amounts and per share data)
Net loss attributable to Endurance International Group Holdings, Inc.	$	(40,264	)	$	(6,335	)	$	(114,781	)	$	(8,236	)
Net loss per share attributable to Endurance International Group Holdings, Inc.:
Basic net loss per share attributable to Endurance International Group Holdings, Inc.	$	(0.29	)	$	(0.04	)	$	(0.84	)	$	(0.06	)
Diluted net loss per share attributable to Endurance International Group Holdings, Inc.	$	(0.29	)	$	(0.04	)	$	(0.84	)	$	(0.06	)
Weighted-average common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:
Basic	137,793,609			143,107,122			136,688,115			141,946,574
Diluted	137,793,609			143,107,122			136,688,115			141,946,574

The following number of weighted average potentially dilutive shares were excluded from the calculation of diluted loss per share because the effect of including such potentially dilutive shares would have been anti-dilutive:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2018	2017	2018
	(unaudited)
Restricted stock awards and units	7,782,806	6,915,158	6,974,708	6,470,097
Options	10,593,596	8,362,719	10,947,661	8,644,464
Total	18,376,402	15,277,877	17,922,369	15,114,561

Recent Accounting Pronouncements - Recently Adopted

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), or ASU 2014-09, which supersedes nearly all existing revenue recognition guidance under U.S. GAAP. Since then, the FASB has also issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606), Principals versus Agent Considerations, ASU 2016-10, Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing, and ASU 2017-13, Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Amendments to SEC Paragraphs Pursuant to the Staff Announcement at the July 20, 2017 EITF Meeting and Rescission of Prior SEC Staff Announcements and Observer Comments, which further elaborate on the original ASU No. 2014-09. The core principle of these updates is to recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the entity expects to be entitled for those goods or services. ASU 2014-09 defines a five step process to achieve this core principle and, in doing so, more judgments and estimates may be required within the revenue recognition process than are required under previous U.S. GAAP. In July 2015, the FASB approved a one-year deferral of the effective date to January 1, 2018, with early adoption to be permitted as of the original effective date of January 1, 2017. Once this standard became effective, companies may use either of the following transition methods: (i) a full retrospective approach reflecting the application of the standard in each reporting period with the option to elect certain practical expedients, or (ii) a retrospective approach with the cumulative effect of initially adopting ASU 2014-09 recognized at the date of adoption (which includes additional footnote disclosures) (the "modified retrospective approach"). The Company adopted this guidance on January 1, 2018 using the modified retrospective approach. The new standard impacted the timing of when certain sales incentive payments, primarily to external parties, are charged to expense as these costs must now be deferred over the life of the related customer relationship, whereas previously these amounts were expensed as incurred. In addition, a small portion of the Company's revenue recognition was impacted by this new guidance. The impact to opening retained earnings as a result of the adoption of the new guidance was $59.4 million, which consists of an $83.4 million deferred asset relating to customer acquisition costs and a $6.1 million deferred asset for domain registration costs, partially offset by a $23.1 million liability for deferred revenue, net of a deferred tax liability of $7.0 million. The Company applied the new guidance to all revenue contracts and did not use any practical expedients. The adoption of Topic 606 impacted the results of operations and certain balance sheet accounts. The impact of applying Topic 606 on the results for reporting periods and balance sheet beginning after January 1, 2018 is presented under Topic 606, while prior amounts are not adjusted and continue to be reported in accordance with the Company’s historic accounting under Topic 605. The impact of applying Topic 606 as of September 30, 2018 is as follows:

	For the three months ended September 30, 2018 under topic 606			For the three months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of operations and comprehensive loss data	(in thousands)
Revenue	$	283,770		$	284,343		$	(573	)
Cost of revenue	128,945			128,583			362
Sales and marketing	63,831			63,816			15
	As of September, 2018 under topic 606			As of September 30, 2018 under topic 605			Increase (decrease)
Consolidated balance sheet data	(in thousands)
Prepaid commissions, current portion	$	41,744		$	—		$	41,744
Prepaid commissions, long-term	42,081			—			42,081
Deferred revenue, current	380,564			379,343			1,221
Deferred revenue, long-term	96,419			96,419			—
	For the three months ended September 30, 2018 under topic 606			For the three months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of cash flow data	(in thousands)
Net (loss) income	$	(6,335	)	$	(6,139	)	$	(196	)
Change in prepaid expenses and other assets	5,527			5,904			(377		)
Change in deferred revenue	(4,691		)	(4,118		)	573
Cash flows from operations	51,341			51,341			—
	For the nine months ended September 30, 2018 under topic 606			For the nine months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of operations and comprehensive loss data	(in thousands)
Revenue	$	862,896		$	864,117		$	(1,221	)
Cost of revenue	393,597			393,345			252
Sales and marketing	197,733			198,240			(507		)
	As of September, 2018 under topic 606			As of September 30, 2018 under topic 605			Increase (decrease)
Consolidated balance sheet data	(in thousands)
Prepaid commissions, current portion	$	41,744		$	—		$	41,744
Prepaid commissions, long-term	42,081			—			42,081
Deferred revenue, current	380,564			379,343			1,221
Deferred revenue, long-term	96,419			96,419			—
	For the nine months ended September 30, 2018 under topic 606			For the nine months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of cash flow data	(in thousands)
Net (loss) income	$	(8,236	)	$	(7,270	)	$	(966	)
Change in prepaid expenses and other assets	(3,033		)	(2,778		)	(255		)
Change in deferred revenue	3,502			4,723			1,221
Cash flows from operations	133,593			133,593			—

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities. This new standard enhances the reporting model for financial instruments to provide users of financial statements with more decision-useful information. This amendment is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. The adoption of this standard did not have a material impact on the Company's consolidated financial statements.

In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows: Restricted Cash. This new standard requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and restricted cash. This amendment is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. The adoption of this standard did not have a material impact on the Company's statement of cash flows.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows: Classification ofCertain Cash Receipts and Cash Payments. This new standard clarifies certain statement of cash flow presentation issues. This amendment is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. The adoption of this standard did not have a material impact on the Company's statement of cash flows.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other: Simplifying the Test for Goodwill Impairment. This new standard eliminates step two of the prior goodwill test, and instead requires that an entity perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. This amendment is effective for annual or interim goodwill impairment tests in fiscal years beginning after December 31, 2019, and should be applied on a prospective basis. The Company elected to early adopt the provisions of ASU 2017-04 effective in the fourth quarter of fiscal year 2017, which simplified the process of calculating the $12.1 million impairment to goodwill during the fourth quarter of fiscal year 2017.

In May 2017, the FASB issued ASU No. 2017-09, Compensation - Stock Compensation (Topic 718). This new standard provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. This amendment is effective for annual or interim periods in fiscal years beginning after December 15, 2017, and should be applied prospectively to an award modified on or after the adoption date. The Company adopted this guidance as of January 1, 2018 and will apply this guidance to any modifications, based on the new definition of a modification, for all periods beginning on or after January 1, 2018. During the three and nine months ended September 30, 2018, there were no modifications that would impact the Company's consolidated financial statements.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. This new guidance better aligns an entity's risk management activities and financial reporting for hedging relationships through changes to the designation and measurement guidance for qualifying hedging relationships and to the method of presenting hedge results. The amendments in this guidance require an entity to present the earnings effect of the hedging instrument in the same income statement line item in which the earnings effect of the hedged item is reported, to allow users to better understand the results and costs of an entity's hedging program. This new guidance is effective for fiscal years beginning after December 15, 2019 and early adoption is allowed. The amended presentation and disclosure guidance is required only prospectively, while the measurement guidance should be applied to hedges existing at the time of adoption through a one-time cumulative-effect adjustment to accumulated other comprehensive income with respect to the elimination of the separate measurement of ineffectiveness with a corresponding adjustment to the opening balance of the retained earnings. The Company adopted this guidance on June 1, 2018 using the modified retrospective approach. The adoption of the new guidance did not have a material impact on the Company's consolidated financial statements.

Recent Accounting Pronouncements - Recently Issued

In February 2016, the FASB issued ASU No. 2016-02, Leases. Since then, the FASB has also issued ASU No. 2018-10, Codification Improvements to Topic 842, Leases, which further clarifies ASU No. 2016-02 and corrects unintended application of guidance. The new standard establishes a right-of-use ("ROU") model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The new standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. A modified retrospective transition approach is required for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. The Company is currently evaluating the impact of its pending adoption of the new standard on its consolidated financial statements, but expects that the adoption will materially increase its assets and liabilities.

In October 2016, the FASB issued ASU No. 2016-16, Income Taxes: Intra-Entity Transfers ofAssets Other Than Inventory. This new standard improves the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. This amendment is effective for annual periods beginning after December 15, 2018, and early adoption is permitted. The Company does not believe the adoption of this ASU will have a material impact on its consolidated financial statements.

In July 2018, the FASB issued ASU No. 2018-07, Compensation - Stock Compensation (Topic 718). The new guidance expands the scope of Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees. The amendments in ASU No. 2018-07 specify that Topic 718 applies to all share-based payment transactions in which a grantor acquires goods or services to be used or consumed in a grantor's own operations by issuing share-based payment awards to a non-employee. The amendments also clarify that Topic 718 does not apply to share-based payments used to effectively provide (1) financing to the issuer or (2) awards granted in conjunction with selling goods or services to customers as part of a contract accounted for under Topic 606, Revenue from Contract with Customers. The new guidance is effective for public companies for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years and early adoption is permitted, provided the company has already adopted the guidance in Topic 606. A company should only remeasure liability-classified awards that have not been settled by the date of adoption and equity-classified awards for which a measurement date has not been established through a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. Upon transition, the company is required to measure these nonemployee awards at fair value as of the adoption date. The Company does not believe the adoption of this ASU will have a material impact on its consolidated financial statements.

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Correction of Income Tax Expense - Fiscal Year 2018

9 Months Ended

Sep. 30, 2018

Accounting Changes and Error Corrections [Abstract]

Correction of Income Tax Expense - Fiscal Year 2018

Correction of Income Tax Expense - Fiscal Year 2018

The Company has revised its deferred income tax provision for the first and second quarter of 2018 to reflect a revision that favorably impacted net income (loss) for these periods.

During fiscal year 2017, the Company began a process to reorganize, and in some instances, eliminate legal entities associated with certain products introduced in 2015 and 2016. This reorganization is expected to provide tax benefits, as the Company can deduct losses on the investments in these entities in its U.S. income tax filings. After further review of these losses, the Company has determined that a significant portion of these losses should have been reflected in its 2017 income tax provision calculations. The Company has increased its net operating loss ("NOL") carry-forwards available to offset future U.S. federal taxable income from $157.6 million as of December 31, 2017, to $236.3 million. Additionally, NOL carry-forwards available to offset future state taxable income were increased from $128.6 million as of December 31, 2017, to $168.3 million. These changes in NOL carry-forwards did not impact the actual income tax provision recorded in 2017; however, due to the changes enacted in the 2017 Tax Cuts and Jobs Act, the manner in which net operating loss carry-forwards are handled does impact the Company's 2018 provision for non-cash deferred income taxes. The impact of this revision on the Company’s financial statements as originally filed for the first and second quarter of fiscal year 2018 is detailed below.

The following table represents the impact of the income statement revision to the first and second quarters of 2018 due to the revised deferred income tax provision (in thousands, except per share data):

	Three Months Ended March 31, 2018									Three Months Ended June 30, 2018
	Originally Filed			Adjustment			Revised			Originally Filed			Adjustment			Revised
Loss before income taxes and equity earnings of unconsolidated subsidiaries	$	(4,444	)	$	—		$	(4,444	)	$	(344	)	$	—		$	(344	)
Income tax expense (benefit)	2,617			(4,560		)	(1,943		)	1,650			(2,596		)	(946		)
Loss before equity earnings of unconsolidated subsidiaries	(7,061		)	$	4,560		$	(2,501	)	(1,994		)	$	2,596		$	602
Equity (income) loss of unconsolidated subsidiaries	27			—			27			$	(25	)				(25		)
Net income (loss)	$	(7,088	)	$	4,560		$	(2,528	)	$	(1,969	)	$	2,596		$	627
Comprehensive income (loss)
Foreign currency translation	580			—			580			(2,425		)	—			(2,425		)
Unrealized (gain) loss on cash flow hedge, net of tax	1,041			—			1,041			144			—			144
Total comprehensive loss	$	(5,467	)	$	4,560		$	(907	)	$	(4,250	)	$	2,596		$	(1,654	)
Basic net income (loss) per share	$	(0.05	)	$	0.03		$	(0.02	)	$	(0.01	)	$	0.01		$0.00
Diluted net income (loss) per share	$	(0.05	)	$	0.03		$	(0.02	)	$	(0.01	)	$	0.01		$0.00
Weighted-average common shares used in computing net income (loss) per share
Basic	140,361,982			—			140,361,982			142,340,561			—			142,340,561
Diluted	140,361,982			—			140,361,982			142,340,561			2,361,441			144,702,002

	Six Months Ended June 30, 2018
	Originally Filed			Adjustment			Revised
Loss before income taxes and equity earnings of unconsolidated subsidiaries	$	(4,788	)	$	—		$	(4,788	)
Income tax expense (benefit)	4,267			(7,156		)	(2,889		)
Loss before equity earnings of unconsolidated subsidiaries	(9,055		)	7,156			(1,899		)
Equity (income) loss of unconsolidated subsidiaries	2			—			2
Net income (loss)	(9,057		)	7,156			$	(1,901	)
Comprehensive income (loss)
Foreign currency translation	(1,845		)	—			(1,845		)
Unrealized gain on cash flow hedge, net of tax	1,184			—			1,184
Total comprehensive loss	(9,718		)	7,156			$	(2,562	)
Basic net income (loss) per share	$	(0.06	)	$	0.05		$	(0.01	)
Diluted net income (loss) per share	$	(0.06	)	$	0.05		$	(0.01	)
Weighted-average common shares used in computing net income (loss) per share
Basic	141,356,567			—			141,356,567
Diluted	141,356,567			—			141,356,567

The following table represents the impact of the revised deferred income tax provision on the impacted balance sheet accounts as of the dates shown (in thousands):

	March 31, 2018									June 30, 2018
	Originally Filed			Adjustment			Revised			Originally Filed			Adjustment			Revised
Deferred tax liability	$	27,679		$	(4,560	)	$	23,119		$	29,897		$	(7,156	)	$	22,741
Total liabilities	2,533,619			(4,560		)	2,529,059			2,490,106			(7,156		)	2,482,950
Accumulated deficit	(795,206		)	4,560			(790,646		)	(797,175		)	7,156			(790,019		)
Total stockholders' equity	144,189			4,560			148,749			147,759			7,156			154,915
Total liabilities and stockholders' equity	2,677,808			—			2,677,808			2,637,865			—			2,637,865

The following table represents the impact of the revised deferred income tax provision on the impacted lines of the statement of cash flows for the periods shown (in thousands):

	Three Months Ended March 31, 2018									Six Months Ended June 30, 2018
	Originally Filed			Adjustment			Revised			Originally Filed			Adjustment			Revised
Net income (loss)	$	(7,088	)	$	4,560		$	(2,528	)	$	(9,057	)	$	7,156		$	(1,901	)
Deferred tax expense	492			(4,560		)	(4,068		)	2,672			(7,156		)	(4,484		)
Net cash provided by operating activities	52,360			—			52,360			82,252			—			82,252

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Acquisitions

9 Months Ended

Sep. 30, 2018

Business Combinations [Abstract]

Acquisitions

Acquisitions

The Company did not make any acquisitions during the three and nine months ended September 30, 2017 and 2018. The Company has a remaining deferred consideration liability related to its acquisition of AppMachine B.V., which had taken place in 2016. Deferred consideration at December 31, 2017 related to AppMachine was $7.9 million, of which, $4.4 million was classified as short-term. Deferred consideration at September 30, 2018 related to AppMachine was $3.7 million, of which $2.4 million was classified as short-term.

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Property and Equipment and Capital Lease Obligations

9 Months Ended

Sep. 30, 2018

Property, Plant and Equipment [Abstract]

Property and Equipment and Capital Lease Obligations

Property and Equipment and Capital Lease Obligations

Components of property and equipment consisted of the following:

	December 31, 2017			September 30, 2018
	(in thousands)
Land	$	790		$	790
Building	5,037			7,294
Software	82,618			88,376
Computers and office equipment	153,273			158,188
Furniture and fixtures	18,825			19,259
Leasehold improvements	22,260			19,672
Construction in process	3,800			2,215
Property and equipment—at cost	286,603			295,794
Less accumulated depreciation	(191,151		)	(216,479		)
Property and equipment—net	$	95,452		$	79,315

Depreciation expense related to property and equipment for the three months ended September 30, 2017 and 2018 was $13.6 million and $11.9 million, respectively. Depreciation expense related to property and equipment for the nine months ended September 30, 2017 and 2018 was $40.7 million and $36.8 million, respectively.

Property under capital lease with a cost basis of $15.5 million was included in software as of September 30, 2018. The net carrying value of property under capital lease as of September 30, 2018 was $10.6 million.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

The following valuation hierarchy is used for disclosure of the valuation inputs used to measure fair value. This hierarchy prioritizes the inputs into three broad levels as follows:

• Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities.

• Level 2 inputs are quoted prices for similar assets or liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument.

• Level 3 inputs are unobservable inputs based on the Company’s own assumptions used to measure assets and liabilities at fair value.

A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.

As of December 31, 2017 and September 30, 2018, the Company’s financial assets required to be measured on a recurring basis consist of the 2015 interest rate cap and the 2018 interest rate cap. The Company has classified these interest rate caps, which are discussed in Note 7 below, within Level 2 of the fair value hierarchy.

Basis of Fair Value Measurements

	Balance		Quoted Prices in Active Markets for Identical Items (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Balance at December 31, 2017
Financial assets:
Interest rate cap (included in other assets)	$	452	—		$	452	$	—
Total financial assets	$	452	$	—	$	452	$	—
Balance at September 30, 2018
Financial assets:
Interest rate caps (included in other assets)	$	6,863	—		$	6,863	$	—
Total financial assets	$	6,863	$	—	$	6,863	$	—

The carrying amounts of the Company's other financial assets and liabilities including cash, accounts receivable, accounts payable and accrued liabilities approximate their respective fair values because of the relatively short period of time between their origination and their expected realization or settlement.

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Derivatives and Hedging Activities

9 Months Ended

Sep. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging Activities

Derivatives and Hedging Activities

Risk Management Objective of Using Derivatives

The Company is exposed to certain risk arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its debt funding and the use of derivative financial instruments. Specifically, the Company may enter into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s investments and borrowings.

Cash Flow Hedges of Interest Rate Risk

The Company has entered into twothree-year interest rate caps as part of its risk management strategy. The interest rate caps, designated as cash flow hedges of interest rate risk, provide for the payment to the Company of variable amounts if interest rates rise above the strike rate on the contract in exchange for an upfront premium. Therefore, these derivatives limit the Company’s exposure if the interest rate rises, but also allow the Company to benefit when the interest rate falls.

The changes in the fair value of derivatives that qualify as cash flow hedges is recorded in Accumulated Other Comprehensive Income ("AOCI"), and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. Amounts reported in AOCI related to derivatives will be reclassified to interest expense as interest payments are made on the Company’s variable-rate debt.

In December 2015, the Company entered into a three-year interest rate cap with $500.0 million notional value outstanding. This interest rate cap was effective beginning on February 29, 2016. The fair value of this interest rate contract included in other assets on the consolidated balance sheet as of September 30, 2018 was $1.0 million, and the Company recognized $0.6 million and $1.2 million of interest expense, respectively, in the Company’s consolidated statement of operations for the three and nine months ended September 30, 2018. The Company recognized a $1.9 million gain, net of a tax expense of $0.1 million, in AOCI for the nine months ended September 30, 2018. The Company estimates that a cumulative amount of $0.1 million will be reclassified from AOCI to interest expense (as an increase to interest expense) in the next twelve months.

In June 2018, the Company entered into a three-year interest rate cap with $800.0 million notional value outstanding. This interest rate cap was effective beginning on August 28, 2018. The fair value of this interest rate contract included in other assets on the consolidated balance sheet as of September 30, 2018 was $5.9 million, and the Company recognized $0.4 million and $0.5 million, respectively, of interest expense in the Company’s consolidated statement of operations for the three and nine months ended September 30, 2018. The Company recognized a $0.7 million gain, net of a tax expense of $0.2 million, in AOCI for the nine months ended September 30, 2018. The Company estimates that $1.7 million will be reclassified from AOCI to interest expense (as an increase to interest expense) in the next twelve months.

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Goodwill and Other Intangible Assets

9 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets

The following table summarizes the changes in the Company’s goodwill balances from December 31, 2017 to September 30, 2018:

	Web Presence			Email Marketing		Domain		Total
	(in thousands)
Goodwill balance at December 31, 2017	$	1,216,419		$	604,305	$	29,858	$	1,850,582
Foreign translation impact	(1,318		)	—		—		(1,318		)
Goodwill balance at September 30, 2018	$	1,215,101		$	604,305	$	29,858	$	1,849,264

In accordance with ASC 350, the Company reviews goodwill and other indefinite-lived intangible assets for indicators of impairment on an annual basis and between tests if an event occurs or circumstances change that would more likely than not reduce the fair value of goodwill below its carrying amount.

At December 31, 2017, other intangible assets consisted of the following:

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted Average Useful Life
	(dollars in thousands)
Developed technology	$	285,911	$	149,514	$	136,397	7 years
Subscriber relationships	659,732		431,938		227,794		7 years
Trade-names	134,054		73,019		61,035		8 years
Intellectual property	34,313		27,336		6,977		5 years
Domain names available for sale	30,458		7,221		23,237		Indefinite
Total December 31, 2017	$	1,144,468	$	689,028	$	455,440

During the nine months ended September 30, 2017 and 2018, there were no impairment charges of intangible assets.

At September 30, 2018, other intangible assets consisted of the following:

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted Average Useful Life
	(dollars in thousands)
Developed technology	$	284,312	$	173,203	$	111,109	7 years
Subscriber relationships	659,376		472,625		186,751		7 years
Trade-names	134,046		81,740		52,306		8 years
Intellectual property	34,306		28,566		5,740		5 years
Domain names available for sale	30,855		9,091		21,764		Indefinite
Total September 30, 2018	$	1,142,895	$	765,225	$	377,670

The estimated useful lives of the individual categories of other intangible assets are based on the nature of the applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with finite lives is recognized over the period of time the assets are expected to contribute to future cash flows. The Company amortizes finite-lived intangible assets over the period in which the economic benefits are expected to be realized based upon their estimated projected cash flows.

The Company’s amortization expense is included in cost of revenue in the consolidated statement of operations and comprehensive loss in the aggregate amounts of $35.3 million and $26.2 million for the three months ended September 30, 2017 and 2018, respectively. The Company's amortization expense is included in cost of revenue in the aggregate amounts of $104.6 million and $77.9 million for the nine months ended September 30, 2017 and 2018, respectively.

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Investments

9 Months Ended

Sep. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Investments

Investments

As of December 31, 2017 and September 30, 2018, the Company’s carrying value of investments in privately-held companies was $15.3 million and $15.3 million, respectively.

In January 2012, the Company made an initial investment of $0.3 million to acquire a 25% interest in BlueZone Labs, LLC (“BlueZone”), a provider of “do-it-yourself” tools and managed search engine optimization services.

The Company also has an agreement with BlueZone to purchase products and services. During the three months ended September 30, 2017 and 2018, the Company purchased $0.4 million and $0.2 million, respectively, of products and services from BlueZone, which is included in cost of revenue in the Company’s consolidated statements of operations and comprehensive loss. During the nine months ended September 30, 2017 and 2018, the Company purchased $1.3 million and $0.9 million, respectively, of products and services from BlueZone, which is included in cost of revenue in the Company's consolidated statements of operations and comprehensive loss. As of December 31, 2017 and September 30, 2018, $0.1 million and $0.0 million, respectively, relating to the Company’s investment in BlueZone was included in accounts payable and accrued expense in the Company’s consolidated balance sheet. As of December 31, 2017 and September 30, 2018, $0.7 million and $0.1 million, respectively, relating to the Company’s investment in BlueZone was included in prepaid expenses and other current assets in the Company’s consolidated balance sheet. The investment is accounted for using the measurement alternative under ASU 2016-01, Financial Instruments - Overall, as fair value is not readily available.

In May 2014, the Company made a strategic investment of $15.0 million in Automattic, Inc. (“Automattic”), which provides content management systems associated with WordPress. The investment represents less than 5% of the outstanding shares of Automattic and better aligns the Company with an important partner. The investment is accounted for using the measurement alternative under ASU 2016-01 as fair value is not readily available.

Investments in which the Company’s interest is less than 20% and which are not classified as available-for-sale securities are carried at the lower of cost or net realizable value unless it is determined that the Company exercises significant influence over the investee company, in which case the equity method of accounting is used. For those investments in which the Company’s voting interest is between 20% and 50%, the equity method of accounting is used. Under this method, the investment balance, originally recorded at cost, is adjusted to recognize the Company’s share of net earnings or losses of the investee company, as they occur, limited to the extent of the Company’s investment in, advances to and commitments for the investee. These adjustments are reflected in equity (income) loss of unconsolidated entities, net of tax in the Company’s consolidated statements of operations and comprehensive loss. The amount of (income) loss recognized from these investments in all periods presented in the Company's consolidated statement of operations has not been material for any of those periods.From time to time, the Company may make new and follow-on investments and may receive distributions from investee companies. As of September 30, 2018, the Company was not obligated to fund any follow-on investments in these investee companies.

As of September 30, 2018, the Company did not have an equity method investment in which the Company’s proportionate share of the investee’s net income or loss exceeded 10% of the Company’s consolidated assets or income from continuing operations.

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Notes Payable

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Notes Payable

Notes Payable

At December 31, 2017 and September 30, 2018, notes payable, net of original issuance discounts (sometimes referred to as "OID") and deferred financing costs, consisted of the following:

	At December 31, 2017		At September 30, 2018
	(in thousands)
2018 First Lien Term Loan	$	—	$	1,493,131
2017 First Lien Term Loan	1,563,197		—
Notes	329,048		330,911
Revolving credit facilities	—		—
Total notes payable	1,892,245		1,824,042
Current portion of notes payable	33,945		31,606
Notes payable - long term	$	1,858,300	$	1,792,436

2018 First Lien Term Loan Facility

In connection with the Company's June 20, 2018 refinancing of its then-outstanding term loan (the "2018 Refinancing"), the Company entered into its current first lien term loan facility (the "2018 Term Loan") with an original balance of $1,580.3 million and a maturity date of February 9, 2023. As of September 30, 2018, the 2018 Term Loan had an outstanding balance of:

		At September 30, 2018
	(in thousands)
2018 First Lien Term Loan		$	1,530,002
Unamortized deferred financing costs		(19,594		)
Unamortized original issue discount		(17,277		)
Net 2018 First Lien Term Loan		1,493,131
Current portion of 2018 First Lien Term Loan		31,606
2018 First Lien Term Loan - long term		$	1,461,525

The 2018 Term Loan was issued at par and automatically bears interest at an alternate base rate unless the Company gives notice to opt for the LIBOR-based interest rate. The LIBOR-based interest rate for the 2018 Term Loan is 3.75% per annum plus the greater of an adjusted LIBOR and 1.00%. The alternate base rate for the 2018 Term Loan is 2.75% per annum plus the greatest of the prime rate, the federal funds effective rate plus 0.50%, an adjusted LIBOR for a one-month interest period plus 1.00%, and 2.00%.

The 2018 Term Loan requires quarterly mandatory repayments of principal. During the nine months ended September 30, 2018, following the 2018 Refinancing, the Company made two mandatory repayments of $7.9 million each, one voluntary prepayment of $17.0 million and one voluntary prepayment of $17.5 million.

Interest is payable on maturity of the elected interest period for a term loan with a LIBOR-based interest rate, which interest period can be one, two, three or six months. Interest is payable at the end of each fiscal quarter for a term loan with an alternate base rate.

2017 First Lien Term Loan Facility

The Company's prior first lien term loan facility (the "2017 Term Loan") was entered into in connection with the Company's June 14, 2017 refinancing of its then-outstanding term loans (the "2017 Refinancing"). The 2017 Term Loan had an original balance of $1,697.3 million and a maturity date of February 9, 2023. As of December 31, 2017 and September 30, 2018, the 2017 Term Loan had an outstanding balance of:

	At December 31, 2017			At September 30, 2018
	(in thousands)
2017 First Lien Term Loan	$	1,605,792		$	—
Unamortized deferred financing costs	(22,456		)	—
Unamortized original issue discount	(20,139		)	—
Net 2017 First Lien Term Loan	1,563,197			—
Current portion of 2017 First Lien Term Loan	33,945			—
2017 First Lien Term Loan - long term	$	1,529,252		$	—

The 2017 Term Loan was issued at a price of 99.75% of par and automatically bore interest at an alternate base rate unless the Company gave notice to opt for the LIBOR-based interest rate. The LIBOR-based interest rate for the 2017 Term Loan was 4.00% per annum plus the greater of an adjusted LIBOR and 1.00%. The alternate base rate for the 2017 Term Loan was 3.00% per annum plus the greatest of the prime rate, the federal funds effective rate plus 0.50%, an adjusted LIBOR for a one-month interest period plus 1.00%, and 2.00%.

The 2017 Term Loan required quarterly mandatory repayments of principal. During the nine months ended September 30, 2018, prior to the 2018 Refinancing, the Company made one mandatory repayment of $8.5 million and one voluntary repayment of $17.0 million.

Interest was payable on maturity of the elected interest period for a term loan with a LIBOR-based interest rate, which interest period could be one, two, three or six months. Interest was payable at the end of each fiscal quarter for a term loan with an alternate base rate.

As part of the 2018 Refinancing, the Company refinanced the then-outstanding 2017 Term Loan balance of $1,580.3 million.

Revolving Credit Facility

In connection with the Company's February 9, 2016 acquisition of Constant Contact and the related financing of that transaction (the "Constant Contact Financing"), the Company entered into a revolving credit facility (the “2016 Revolver”) that replaced the Company's prior revolving credit facility. The 2016 Revolver has an aggregate available amount of $165.0 million. As of December 31, 2017 and September 30, 2018, the Company did not have any balances outstanding under the 2016 Revolver and the full amount of the facility was unused and available.

In June 2018, the Company extended the maturity of a portion of the 2016 Revolver. The 2016 Revolver consists of a non-extended tranche of approximately $58.8 million and an extended tranche of approximately $106.2 million. The non-extended tranche has a maturity date of February 9, 2021. The extended tranche has a maturity date of June 20, 2023, with a "springing" maturity date of November 10, 2022 if the 2018 Term Loan has not been repaid in full or otherwise extended to September 19, 2023 or later prior to November 10, 2022.

The Company has the ability to draw down against the 2016 Revolver using a LIBOR-based interest rate or an alternate base rate. The LIBOR-based interest rate for a non-extended revolving loan is 4.0% per annum (subject to a leverage-based step-down) and for an extended revolving loan is 3.25% per annum (subject to a leverage-based step-down), in each case plus an adjusted LIBOR for a selected interest period. The alternate base rate for a non-extended revolving loan is 3.0% per annum (subject to a leverage-based step-down) and for an extended revolving loan is 2.25% per annum (subject to a leverage-based step-down), in each case plus the greatest of the prime rate, the federal funds rate plus 0.50% and an adjusted LIBOR or a one-month interest period plus 1.00%. There is also a non-refundable commitment fee, equal to 0.50% per annum (subject to a leverage-based step-down) of the daily unused principal amount of the 2016 Revolver, which is payable in arrears on the last day of each fiscal quarter. Interest is payable on maturity of the elected interest period for a revolver loan with a LIBOR-based interest rate, which interest period can be one, two, three or six months. Interest is payable at the end of each fiscal quarter for a revolver loan with an alternate base rate.

Senior Notes

In connection with the Constant Contact Financing, EIG Investors issued $350.0 million aggregate principal amount of senior notes (the "Senior Notes") with a maturity date of February 1, 2024. The Senior Notes were issued at a price of 98.065% of par and bear interest at the rate of 10.875% per annum. The Senior Notes have been fully and unconditionally guaranteed, on a senior unsecured basis, by the Company and its subsidiaries that guarantee the 2018 Term Loan and the 2016 Revolver (including Constant Contact and certain of its subsidiaries). The Company has the right to redeem all or a part of the Senior Notes at any time for a premium which is based on the applicable redemption date. As of December 31, 2017 and September 30, 2018, the Senior Notes had an outstanding balance of:

	At December 31, 2017			At September 30, 2018
	(in thousands)
Senior Notes	$	350,000		$	350,000
Unamortized deferred financing costs	(15,280		)	(13,921		)
Unamortized original issuance discount	(5,672		)	(5,168		)
Net Senior Notes	329,048			330,911
Current portion of Senior Notes	—			—
Senior Notes - long term	$	329,048		$	330,911

Interest on the Senior Notes is payable twice a year, on August 1 and February 1.

On January 30, 2017, the Company completed a registered exchange offer for the Senior Notes, as required under the registration rights agreement it entered into with the initial purchasers of the Senior Notes. All of the $350.0 million aggregate principal amount of the Senior Notes was validly tendered for exchange as part of this exchange offer.

Maturity of Notes Payable

The maturity of the notes payable at September 30, 2018 is as follows:

Amounts maturing in:	(in thousands)
(Remainder of) 2018	$	7,902
2019	31,606
2020	31,606
2021	31,606
2022	31,606
Thereafter	1,745,676
Total	$	1,880,002

Interest

The Company recorded $35.8 million and $37.5 million in interest expense for the three months ended September 30, 2017 and 2018, respectively, and $121.0 million and $111.9 million for the nine months ended September 30, 2017 and 2018, respectively.

The following table provides a summary of interest rates and interest expense for the three and nine months ended September 30, 2017 and 2018:

	Three Months Ended September 30, 2017			Three Months Ended September 30, 2018			Nine Months Ended September 30, 2017			Nine Months Ended September 30, 2018
	(percentage per annum)
Interest rate—LIBOR	5.14%-5.32%			5.81%-6.07%			5.14%-6.68%			5.46%-6.32%
Interest rate—reference	*			*			*			*
Interest rate—Senior Notes	10.875		%	10.875		%	10.875		%	10.875		%
Non-refundable fee—unused facility	0.50		%	0.50		%	0.50		%	0.50		%
	(dollars in thousands)
Interest expense and service fees	$	32,551		$	34,469		$	105,371		$	101,575
Loss on extinguishment of debt	—			—			992			331
Deferred financing fees immediately expensed	—			—			5,487			1,228
Amortization of deferred financing fees	1,873			1,722			5,403			4,708
Amortization of original issue discounts	1,059			1,083			2,791			3,209
Amortization of net present value of deferred consideration	127			60			504			311
Other interest expense	238			193			474			561
Total interest expense	$	35,848		$	37,527		$	121,022		$	111,923

* The Company did not have debt bearing interest based on the alternate base rate for the three and nine months ended September 30, 2017 and 2018.

The Company concluded that the 2017 Refinancing was primarily a debt modification of the existing term loans in accordance with ASC 470-50, Debt: Modifications and Extinguishments, with extinguishment relating only to a few existing lenders that did not participate in the 2017 Refinancing. As a result, during the second quarter of 2017, the Company capitalized $4.2 million of additional OID and $0.9 million of deferred financing costs related to new lenders participating in the 2017 Term Loan. These capitalized costs were being amortized over the remaining life of the loan using the effective interest method. Additionally in the second quarter of 2017, the Company recorded a charge of $1.0 million, included in interest expense, to write off OID and deferred financing costs related to the refinanced debt for lenders not participating in the 2017 Term Loan. Lastly, the Company recorded a charge of $5.5 million during the second quarter of 2017, included in interest expense, for deferred financing costs incurred for the 2017 Term Loan that related to existing lenders that carried over from the refinanced debt.

The Company concluded that the 2018 Refinancing was primarily a debt modification of the existing term loan in accordance with ASC 470-50, Debt: Modifications and Extinguishments, with extinguishment relating only to one existing lender that did not participate in the 2018 Refinancing. As a result, during the second quarter of 2018, the Company capitalized $0.4 million of deferred financing costs related to new lenders participating in the 2018 Term Loan. These capitalized costs will be amortized over the remaining life of the loan using the effective interest method. Additionally, in the second quarter of 2018, the Company recorded a charge of $0.3 million, included in interest expense, to write off OID and deferred financing costs related to the refinanced debt for the lender not participating in the 2018 Term Loan. Lastly, the Company recorded a charge of $1.2 million during the second quarter of 2018, included in interest expense, for deferred financing costs incurred for the 2018 Term Loan that related to existing lenders that carried over from the refinanced debt.

Debt Covenants

The 2018 Term Loan and 2016 Revolver (together, the "Senior Credit Facilities") require that the Company complies with a financial covenant to maintain a maximum ratio of consolidated senior secured net indebtedness to an adjusted consolidated EBITDA measure.

The Senior Credit Facilities also contain covenants that limit the Company's ability to, among other things, incur additional debt or issue certain preferred shares; pay dividends on or make other distributions in respect of capital stock; make other restricted payments; make certain investments; sell or transfer certain assets; create liens on certain assets to secure debt; consolidate, merge, sell or otherwise dispose of all or substantially all of its assets; and enter into certain transactions with affiliates. These covenants are subject to a number of important limitations and exceptions.

Additionally, the Senior Credit Facilities require the Company to comply with certain negative covenants and specify certain events of default that could result in amounts becoming payable, in whole or in part, prior to their maturity dates.

With the exception of certain equity interests and other excluded assets under the terms of the Senior Credit Facilities, substantially all of the Company's assets are pledged as collateral for the obligations under the Senior Credit Facilities. The indenture with respect to the Senior Notes contains covenants that limit the Company's ability to, among other things, incur additional debt or issue certain preferred shares; pay dividends on or make other distributions in respect of capital stock; make other restricted payments; make certain investments; sell or transfer certain assets; create liens on certain assets to secure debt; consolidate, merge sell or otherwise dispose of all or substantially all of its assets; and enter into certain transactions with affiliates. Upon a change of control as defined in the indenture, the Company must offer to repurchase the Senior Notes at 101% of the aggregate principal amount thereof, plus accrued and unpaid interest, if any, up to, but not including, the repurchase date. These covenants are subject to a number of important limitations and exceptions.

The indenture also provides for events of default, which, if any of them occurs, may permit or, in certain circumstances, require the principal, premium, if any, interest and any other monetary obligations on all the then outstanding Senior Notes to be due and payable immediately.

The Company was in compliance with all covenants at September 30, 2018.

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Stockholders' Equity

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Stockholders' Equity

Stockholders’ Equity

Voting Rights

All holders of common stock are entitled to one vote per share.

Changes in Total Stockholders' Equity

The following table presents the changes in total stockholders’ equity during the nine months ended September 30, 2018:

	Total Stockholders’ Equity
	(in thousands)
Balance at December 31, 2017	$	83,005
Stock-based compensation	21,932
Reclassification of stock-compensation liability award	250
Stock option exercises	756
Foreign currency translation adjustment	(2,489		)
Unrealized gain on derivative	1,996
Adjustment to beginning retained earnings resulting from adoption of ASC 606, net of tax impact of $7.0 million	59,384
Net loss attributable to Endurance International Group Holdings, Inc.	(8,236		)
Balance at September 30, 2018	$	156,598

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Stock-Based Compensation

9 Months Ended

Sep. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

Stock-Based Compensation

2013 Stock Incentive Plan

The Amended and Restated 2013 Stock Incentive Plan (the “2013 Plan”) of the Company became effective upon the closing of its initial public offering ("IPO"). The 2013 Plan provides for the grant of options, stock appreciation rights, restricted stock, restricted stock units and other stock-based awards to employees, officers, directors, consultants and advisers of the Company. Under the 2013 Plan, the Company may issue up to 38,000,000 shares of the Company’s common stock. At September 30, 2018, there were 16,722,969 shares available for grant under the 2013 Plan.

2011 Stock Incentive Plan

As of February 9, 2016, the effective date of the acquisition of Constant Contact, the Company assumed and converted certain outstanding equity awards granted by Constant Contact under the Constant Contact 2011 Stock Incentive Plan (the “2011 Plan”) prior to the effective date of the acquisition (the “Assumed Awards”) into corresponding equity awards with respect to shares of the Company’s common stock. In addition, the Company assumed certain shares of Constant Contact common stock, par value $0.01 per share, available for issuance under the 2011 Plan (the “Available Shares”), which will be available for future issuance under the 2011 Plan in satisfaction of the vesting, exercise or other settlement of options and other equity awards that may be granted by the Company following the effective date of the acquisition of Constant Contact in reliance on the prior approval of the 2011 Plan by the stockholders of Constant Contact. The Assumed Awards were converted into 2,143,987 stock options and 2,202,846 restricted stock units with respect to the Company’s common stock and the Available Shares were converted into 10,000,000 shares of the Company’s common stock reserved for future awards under the 2011 Plan. At September 30, 2018, there were 8,390,174 shares available for grant under the 2011 Plan.

All Plans

The following table presents total stock-based compensation expense recorded in the consolidated statement of operations and comprehensive loss for all awards granted under the Company’s 2013 Plan and 2011 Plan:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2018		2017		2018
	(in thousands)
Cost of revenue	$	1,553	$	828	$	4,720	$	3,223
Sales and marketing	2,263		1,478		7,027		4,009
Engineering and development	1,807		1,237		4,707		3,519
General and administrative	13,956		4,007		32,295		11,181
Total stock-based compensation expense	$	19,579	$	7,550	$	48,749	$	21,932

2013 Stock Incentive Plan

The following table provides a summary of the Company’s stock options as of September 30, 2018 and the stock option activity for all stock options granted under the 2013 Plan during the nine months ended September 30, 2018:

	Stock Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value(3) (in thousands)
Outstanding at December 31, 2017	8,575,150		$	12.30
Granted	611,010		$	7.50
Exercised	(19,049	)	$	8.09
Forfeited	(304,382	)	$	12.79
Expired	(1,516,912	)	$	13.56
Outstanding at September 30, 2018	7,345,817		$	11.63	5.1	$	1,600
Exercisable at September 30, 2018	5,475,357		$	12.39	3.9	$	283
Expected to vest after September 30, 2018 (1)	1,870,460		$	9.39	8.4	$	1,317
Exercisable as of September 30, 2018 and expected to vest (2)	7,345,817		$	11.63	5.1	$	1,600

⁽¹⁾  This represents the number of unvested options outstanding as of September 30, 2018 that are expected to vest in the future.

⁽²⁾  This represents the number of vested options as of September 30, 2018 plus the number of unvested options outstanding as of September 30, 2018 that are expected to vest in the future.

⁽³⁾  The aggregate intrinsic value was calculated based on the positive difference, if any, between the estimated fair value of the Company’s common stock on September 30, 2018 of $8.80 per share, or the date of exercise, as appropriate, and the exercise price of the underlying options.

Restricted stock units granted under the 2013 Plan generally vest annually over a three-year period, unless otherwise determined by the Company’s board of directors. The following table provides a summary of the Company’s restricted stock unit activity for the 2013 Plan during the nine months ended September 30, 2018:

	Restricted Stock Units		Weighted Average Grant Date Fair Value
Non-vested at December 31, 2017	3,004,137		$	7.93
Granted	3,846,567		$	7.55
Vested	(1,185,704	)	$	9.08
Canceled	(394,763	)	$	7.78
Non-vested at September 30, 2018	5,270,237		$	7.67

Restricted stock awards granted under the 2013 Plan generally vest annually over a four-year period, unless otherwise determined by the Company’s board of directors. Performance-based restricted stock awards are earned based on the achievement of performance criteria established by the Company’s compensation committee and board of directors. The following table provides a summary of the Company’s restricted stock award activity for the 2013 Plan during the nine months ended September 30, 2018:

	Restricted Stock Awards		Weighted Average Grant Date Fair Value
Non-vested at December 31, 2017	3,432,946		$	13.79
Granted	—		$	—
Vested	(819,886	)	$	12.29
Canceled	(2,134,075	)	$	14.85
Non-vested at September 30, 2018	478,985		$	11.62

2015 Performance Based Award

During fiscal year 2015, the Company granted a performance-based restricted stock award to the Company’s chief executive officer ("CEO") at that time, Hari Ravichandran, which provided for the opportunity to earn up to 3,693,754 shares of the Company’s common stock (the “Award Shares”) over a three-year period beginning July 1, 2015 and ending on June 30, 2018 (the “Performance Period”). Award Shares could be earned based on the Company achieving pre-established threshold, target and maximum performance metrics.

In April 2017, the Company announced that its board of directors and Mr. Ravichandran adopted a CEO transition plan. As a result of this transition, Mr. Ravichandran's employment with the Company ended during the fourth quarter of fiscal year 2017. Upon the end of his employment, in accordance with the terms of the award, Mr. Ravichandran received the Award Shares earned in the quarters completed prior to the separation, plus the number of Award Shares that would have been earned in the quarter in which the separation occurred, which amounted to an aggregate of 1,661,439 shares. The unearned 2,032,315 shares were forfeited. All charges relating to this award were recognized prior to January 1, 2018.

2016 Performance Based Awards

On February 16, 2016, the compensation committee of the board of directors of the Company approved the grant of performance-based restricted stock awards to the Company’s chief financial officer (“CFO”), chief operating officer (“COO”) at that time and chief administrative officer (“CAO”) at that time. Based on the Company's achievement of Constant Contact revenue, adjusted EBITDA and cash flow metrics, each executive earned the maximum number of shares subject to his or her award. The CFO earned 223,214 shares of the Company’s stock, the COO earned 260,416 shares of the Company’s stock, and the CAO earned 148,810 shares of the Company’s stock. These earned shares vested on March 31, 2017. During the three months ended March 31, 2017, the Company recognized $1.2 million of stock-based compensation expense related to these performance-based awards, which was the last quarter stock-based compensation was recorded relating to these awards.

New CEO Award

On August 11, 2017, the Company and Jeffrey H. Fox entered into an employment agreement (the “Employment Agreement”) appointing Mr. Fox as the Company’s president and chief executive officer effective upon his employment start date (the “Effective Date”) of August 22, 2017. The Employment Agreement provided for Mr. Fox to receive, on the Effective Date, an equity award under the 2013 Plan with a total value of $10,375,000 as of August 11, 2017, split between an award of 1,032,500 restricted stock units (the “RSU Award”) and an option to purchase 612,419 shares of the Company’s common stock (the “Stock Option Grant”).

Two Hundred Eighty-Two Thousand Five Hundred (282,500) of the restricted stock units subject to the RSU Award vested immediately on the Effective Date, but are subject to a requirement that Mr. Fox hold the shares underlying such restricted stock units until the earlier of the third anniversary of the Effective Date, his death or disability (as defined in the Employment Agreement) or a change in control of the Company (as defined in the Employment Agreement). The Company recorded a charge of $2.2 million for these immediately vested shares during the three months ended September 30, 2017. The remaining 750,000 restricted stock units subject to the RSU Award will vest over a three-year period, with 250,000 of such restricted stock units vesting annually on the anniversary of the Effective Date. The Stock Option Grant will vest over a three-year period, with one-third of the total number of shares subject to the Stock Option Grant vesting on the first anniversary of the Effective Date and the remainder vesting in equal monthly installments thereafter.

2011 Stock Incentive Plan

The following table provides a summary of the Company’s stock options as of September 30, 2018 and the stock option activity for all stock options granted under the 2011 Plan during the nine months ended September 30, 2018:

	Stock Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (In Years)	Aggregate Intrinsic Value(3) (in thousands)
Outstanding at December 31, 2017	888,260		$	8.75
Granted	—		$	—
Exercised	(92,229	)	$	6.53
Forfeited	(10,256	)	$	10.47
Expired	(38,652	)	$	9.21
Outstanding at September 30, 2018	747,123		$	8.98	3.7	$	546
Exercisable at September 30, 2018	563,823		$	8.76	3.5	$	499
Expected to vest after September 30, 2018 (1)	183,300		$	9.65	4.2	$	47
Exercisable as of September 30, 2018 and expected to vest (2)	747,123		$	8.98	3.7	$	546

⁽¹⁾  This represents the number of unvested options outstanding as of September 30, 2018 that are expected to vest in the future.

⁽²⁾  This represents the number of vested options as of September 30, 2018 plus the number of unvested options outstanding as of September 30, 2018 that are expected to vest in the future.

⁽³⁾  The aggregate intrinsic value was calculated based on the positive difference, if any, between the estimated fair value of the Company’s common stock on September 30, 2018 of $8.80 per share, or the date of exercise, as appropriate, and the exercise price of the underlying options.

Unless otherwise determined by the Company’s board of directors, restricted stock units granted under the 2011 Plan generally vest annually over a three- or a four-year period. The following table provides a summary of the Company’s restricted stock unit activity for the 2011 Plan during the nine months ended September 30, 2018:

	Restricted Stock Units		Weighted Average Grant Date Fair Value
Non-vested at December 31, 2017	1,541,141		$	8.30
Granted	41,379		$	7.25
Vested	(516,600	)	$	8.38
Canceled	(92,030	)	$	8.53
Non-vested at September 30, 2018	973,890		$	8.20

Under both the 2011 and 2013 Plans combined, as of September 30, 2018 the Company had approximately $8.9 million of unrecognized stock-based compensation expense related to option awards that will be recognized over 1.6 years and approximately $43.7 million of unrecognized stock-based compensation expense related to restricted stock awards and restricted stock units that will be recognized over 2.1 years.

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Accumulated Other Comprehensive Income

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Accumulated Other Comprehensive Income

Accumulated Other Comprehensive Income

The following table presents the components of accumulated other comprehensive income (loss):

	Foreign Currency Translation Adjustments			Unrealized Gains (Losses) on Cash Flow Hedges			Total
	(in thousands)
Balance at December 31, 2017	$	696		$	(1,237	)	$	(541	)
Other comprehensive income (loss)	(2,489		)	1,996			(493		)
Balance at September 30, 2018	$	(1,793	)	$	759		$	(1,034	)

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Variable Interest Entity

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Variable Interest Entity

Variable Interest Entity

The Company, through a subsidiary formed in China, entered into various agreements with Shanghai Xiao Lan Network Technology Co., Ltd (“Shanghai Xiao”) and its shareholders that allowed the Company to effectively control Shanghai Xiao, making it a variable interest entity (“VIE”). Shanghai Xiao has a technology license that allows it to provide local hosting services to customers located in China. During fiscal year 2018, the Company ceased operations of the VIE, and has begun the process to liquidate the entity.

From inception and through the period ended September 30, 2018, the financial position and results of operations of Shanghai Xiao are consolidated within, but are not material to, the Company’s consolidated financial position or results of operations.

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Revenue

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Revenue

Revenue

Adoption of ASC Topic 606, “Revenue from Contracts with Customers”

The Company recorded a net increase to opening retained earnings of $59.4 million as of January 1, 2018 due to the cumulative impact of adopting Topic 606, with the impact primarily related to customer acquisition costs. The impact to revenue and customer acquisition costs during the three months ended September 30, 2018 as a result of applying Topic 606 was a decrease of $0.6 million and an increase of $0.0 million, respectively. The impact to revenue and customer acquisition costs during the nine months ended September 30, 2018 was a decrease of $1.2 million and an increase of $0.5 million, respectively.

During the three and nine months ended September 30, 2018, the Company recognized $283.8 million and $862.9 million of revenue, respectively, the majority of which was derived from contracts with customers.

During the three and nine months ended September 30, 2018, the Company did not incur any impairment losses on any receivables or contract assets arising from the Company’s contracts with customers.

During the three and nine months ended September 30, 2018, the Company did not incur any credit losses on any receivables or contract assets, arising from the Company’s contracts with customers.

In accordance with ASC 606, the Company disaggregates revenue from contracts with customers based on the timing of revenue recognition. The Company determined that disaggregating revenue into these categories depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. As discussed in Note 21.Segment Information, the Company business consists of the web presence, domain and email marketing segments. The following table presents disaggregated revenues by category for the three and nine months ended September 30, 2018:

	Three Months Ended September 30, 2018
	Web presence		Email marketing		Domain		Total
	(in thousands)
Subscriber revenue
Direct revenue from subscribers	$	138,869	$	100,816	$	12,911	$	252,596
Professional services	3,387		299		103		3,789
Reseller revenue	5,241		855		12,585		18,681
Total subscriber revenue	$	147,497	$	101,970	$	25,599	$	275,066
Non-subscriber revenue
MDF	$	2,199	$	141	$	252	$	2,592
Premium domains	3		—		5,067		5,070
Domain parking	172		—		870		1,042
Total non-subscriber revenue	$	2,374	$	141	$	6,189	$	8,704
Total revenue:	$	149,871	$	102,111	$	31,788	$	283,770
	Nine Months Ended September 30, 2018
	Web presence		Email marketing		Domain		Total
	(in thousands)
Subscriber revenue
Direct revenue from subscribers	$	424,321	$	302,583	$	39,185	$	766,089
Professional services	10,091		1,045		300		11,436
Reseller revenue	16,487		2,620		39,136		58,243
Total subscriber revenue	$	450,899	$	306,248	$	78,621	$	835,768
Non-subscriber revenue
MDF	$	6,012	$	464	$	473	$	6,949
Premium domains	70		—		15,823		15,893
Domain parking	622		—		3,664		4,286
Total non-subscriber revenue	$	6,704	$	464	$	19,960	$	27,128
Total revenue:	$	457,603	$	306,712	$	98,581	$	862,896

Subscriber revenue is primarily recognized over time, when the services are performed, except for third party products for which the Company acts as an agent. Revenue from third party products for which the Company acts as an agent is recognized at a point in time, when the revenue is earned.

Revenue, classified by the major geographic areas in which the Company’s customers are located, was as follows for the three and nine months ended September 30, 2018:

	Three Months Ended September 30, 2018
	Web presence		Email marketing		Domain		Total
	(in thousands)
Domestic	$	100,065	$	93,992	$	12,509	$	206,566
International	49,806		8,119		19,279		77,204
Total	$	149,871	$	102,111	$	31,788	$	283,770
	Nine Months Ended September 30, 2018
	Web presence		Email marketing		Domain		Total
	(in thousands)
Domestic	$	306,724	$	281,717	$	38,525	$	626,966
International	150,879		24,995		60,056		235,930
Total	$	457,603	$	306,712	$	98,581	$	862,896

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Redeemable Non-controlling Interest

9 Months Ended

Sep. 30, 2018

Noncontrolling Interest [Abstract]

Redeemable Non-controlling Interest

Redeemable Non-controlling Interest

On January 6, 2016, the Company increased its stake from a 49.0% to a 57.5% controlling interest in WZ (UK) Ltd. ("WZ UK"), an entity specialized in marketing certain of the Company's products. The minority shareholders could put their non-controlling interest, or NCI, to the Company within pre-specified put periods. As the NCI was subject to a put option that was outside the control of the Company, it was deemed a redeemable non-controlling interest and was not recorded in permanent equity, and was presented in mezzanine redeemable non-controlling interest on the consolidated balance sheet. The Company increased its ownership interest in WZ UK to 77.5% in May of 2016.

On July 13, 2016, the Company completed a restructuring with the minority shareholders that resulted in Pseudio Limited and Resume Labs Limited becoming wholly-owned subsidiaries of WZ UK, and acquired an increased ownership interest in the consolidated entity which brought the Company's ownership of WZ UK to 86.4%. The restructuring significantly reduced the amount of the potential redemption amount payable to the minority shareholders, and gave the Company the flexibility to reduce investments in this business. Based on these reduced investments, the estimated value of the non-controlling interest was below the expected redemption amount of $25.0 million, which resulted in $14.2 million of excess accretion that reduced income available to common shareholders for the period starting on the date of the restructuring through the redemption date of July 1, 2017. The Company recognized excess accretion of $0.0 million and $7.2 million for the three and nine months ended September 30, 2017, respectively, which is reflected in net loss attributable to accretion of non-controlling interest in the Company’s consolidated statements of operations and comprehensive loss. Prior to the third quarter of 2016, the Company did not have any accretion amounts in excess of fair value. On July 7, 2017, the Company redeemed the remaining redeemable non-controlling interest for $25.0 million.

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Income Taxes

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

On December 22, 2017, the United States enacted tax reform legislation by passage of the commonly named Tax Cuts and Jobs Act, which significantly changes the existing U.S. tax laws, including a reduction in the corporate tax rate from 35% to 21% and a move from a worldwide tax system to a territorial system, as well as other changes. As a result of enactment of the legislation, the Company incurred an additional one-time income tax benefit on the re-measurement of certain deferred tax assets and liabilities in the amount of $16.9 million for the year ended December 31, 2017. The legislation also introduced substantial international tax reform that moves the U.S. toward a territorial system, in which income earned in other countries will generally not be subject to U.S. taxation. The accumulated foreign earnings of U.S. shareholders of certain foreign corporations will be subject to a one-time transition tax. Amounts held in cash or cash equivalents will be subject to a 15.5% tax, while amounts held in illiquid assets will be subject to an eight percent tax. Due to an accumulated deficit in the undistributed earnings of the Company's foreign subsidiaries, the one-time transition tax will not apply to the Company. Additionally, the legislation also contains provisions which would generally limit the Company's deduction for interest expense to 30% of adjusted taxable earnings before interest, taxes, depreciation and amortization ("Tax EBITDA"). The legislation includes provisions which provide a deduction related to intangible income that is owned in the U.S., an additional tax charge related to income from intangibles owned outside the U.S., and a new base-erosion and anti-abuse tax. Although the Company has substantially completed its work on the effects of the Tax Cuts and Jobs Act, it continues to evaluate certain sections of the new law that may be pertinent to the Company's tax situation. The Company has also adopted an accounting policy, as provided by the FASB in their January 10, 2018 Board Meeting, to account for the tax effects of the Global Intangible Low Tax Income ("GILTI") in the periods that the Company is subject to such tax. As a result of this accounting policy, the Company will not be recording the tax effect of the deferred tax assets and liabilities associated with the GILTI tax.

During fiscal year 2017, the Company recorded a deferred tax expense and maintained a deferred tax liability to account primarily for the different book and tax treatment of tax deductible goodwill. Prior to 2018, the Company could not utilize deferred tax assets against the portion of the deferred tax liability related to tax deductible goodwill, as that liability was considered to have an indefinite life. With the passage of the Tax Cuts and Jobs Act, NOL carry-forwards generated after 2017 and the carry-forward of disallowed interest expense are indefinite in life, and therefore are eligible to offset indefinite life deferred tax liabilities. The Company's deferred tax expense (benefit) during 2018 has been impacted by this change.

As described in Note 3, the Company has revised its deferred income tax provision for the first and second quarter of 2018 to reflect an increase in NOL carry-forwards resulting from the reorganization and liquidation of certain affiliated entities which resulted in the recognition of a worthless stock loss of approximately $78.0 million during fiscal year 2017. This revision did not impact the previously reported income tax provision for fiscal year 2017; however, due to the changes enacted in the Tax Cuts and Jobs Act, the manner in which net operating loss carry-forwards are handled did impact the Company's 2018 provision for deferred income taxes previously recorded for the three months ended March 31, 2018 and for the three and six months ended June 30, 2018. The Company revised its provision (benefit) for income taxes for the three months ended March 31, 2018 from an expense of $2.6 million to a benefit of $(1.9) million. The Company also revised its provision (benefit) for income taxes for the three and six months ended June 30, 2018 from an expense of $1.7 million to a benefit of $(0.9) million, and an expense of $4.3 million to a benefit of $(2.9) million, respectively. All of these changes are attributable to changes in deferred tax expense (benefit).

The Company regularly assesses its ability to realize its deferred tax assets. Assessing the realization of deferred tax assets requires significant management judgment. In determining whether its deferred tax assets are more likely than not realizable, the Company evaluated all available positive and negative evidence, and weighted the evidence based on its objectivity. Evidence the Company considered included:

• NOLs incurred from the Company’s inception to September 30, 2018;

• Expiration of various federal, state and foreign tax attributes;

• Reversals of existing temporary differences;

• Composition and cumulative amounts of existing temporary differences; and

• Forecasted profit before tax.

The Company updates the scheduling of the reversal of the consolidated U.S. deferred tax assets and liabilities each quarter, as the deferred tax liabilities have continued to decrease and the Company generated pre-tax losses. Based on the analysis of the above evidence, the Company recorded a reduction of $7.9 million to its valuation allowance during the three months ended September 30, 2018.

The Company recognizes, in its consolidated financial statements, the effect of a tax position when it is more likely than not, based on the technical merits, that the position will be sustained upon examination. During the quarter ended September 30, 2017, management concluded that the Company’s material tax positions require the recording of an ASC 740-10 reserve, with interest and penalties, for uncertain income tax positions as of September 30, 2017. The Company has unrecognized tax positions at December 31, 2017 and September 30, 2018 of $1.1 million and $2.9 million, respectively, that would affect its effective tax rate. The Company does not expect a significant change in the liability for unrecognized tax benefits in the next 12 months.

For the three months ended September 30, 2017 and 2018, the Company recognized a tax expense of $3.0 million and $11.7 million, respectively, in the consolidated statements of operations and comprehensive loss. The income tax expense for the three months ended September 30, 2018 was primarily attributable to a federal and state deferred tax expense of $12.9 million due primarily to the different book and tax treatment of goodwill, a federal and state current income tax expense of $0.1 million and a foreign deferred tax expense of $0.3 million, partially offset by a foreign current tax benefit of $1.6 million. The income tax expense for the three months ended September 30, 2017 was primarily attributable to a federal and state deferred tax expense of $1.9 million, federal and state current income taxes of $0.2 million, foreign current tax expense of $0.7 million, and a foreign deferred tax expense of $0.2 million.

For the nine months ended September 30, 2017 and 2018, the Company recognized a tax expense of $11.4 million and $8.8 million, respectively, in the consolidated statements of operations and comprehensive loss. The income tax expense for the nine months ended September 30, 2018 was primarily attributable to a federal and state deferred tax expense of $8.9 million , a federal and state current income tax expense of $0.5 million, a foreign deferred tax expense of $0.2 million, partially offset by a foreign current tax benefit of $0.8 million. The income tax expense for the nine months ended September 30, 2017 was primarily attributable to a federal and state deferred tax expense of $7.3 million, federal and state current income taxes of $2.6 million, a foreign current tax expense of $2.3 million, partially offset by a foreign deferred tax benefit of $0.8 million.

As of December 31, 2017, the Company had NOL carry-forwards available to offset future U.S. federal taxable income of approximately $236.3 million and future state taxable income of approximately $168.3 million. These NOL carry-forwards expire on various dates through 2037.

As of December 31, 2017, the Company had NOL carry-forwards in foreign jurisdictions available to offset future foreign taxable income by approximately $26.7 million. The Company has loss carry-forwards that begin to expire in 2021 in in China totaling $0.7 million. The Company has loss carry-forwards that begin to expire in 2020 in the Netherlands totaling $12.6 million. The Company also has loss carry-forwards in the United Kingdom and Singapore of $13.2 million and $0.2 million, respectively, which have an indefinite carry-forward period. A recent U.K. tax law change provides that U.K. losses can only offset 50% of trading profits incurred after April 1, 2017.

In addition, the Company has $3.4 million of U.S. federal capital loss carry-forwards and $1.4 million in state capital loss carry-forwards, generally expiring through 2021. As of December 31, 2017, the Company had U.S. tax credit carry-forwards available to offset future U.S. federal and state taxes of approximately $17.6 million and $12.3 million, respectively. These credit carry-forwards expire on various dates through 2037.

Utilization of the NOL carry-forwards may be subject to an annual limitation due to the ownership change rules under Section 382 of the Internal Revenue Code (“Section 382 limitation”). Ownership changes can limit the amount of net operating loss and other tax attributes that a company can use each year to offset future taxable income and taxes payable. Although the Company has experienced a number of ownership changes over time, it currently does not have any Section 382 limitation on its ability to utilize NOL carry-forwards.

The Company files income tax returns in the United States for federal income taxes and in various state jurisdictions. The Company also files in several foreign jurisdictions. In the normal course of business, the Company is subject to examination by tax authorities throughout the world. Since the Company is in a loss carry-forward position, it is generally subject to U.S. federal and state income tax examinations by tax authorities for all years for which a loss carry-forward is utilized. One of the Company’s subsidiaries, Constant Contact, Inc., is under audit by the U.S. Internal Revenue Service and the New York City Department of Finance for periods ended December 31, 2015 and February 9, 2016. The Company is also currently under audit in India for fiscal years ended March 31, 2014, 2015 and 2016 and Israel for the fiscal years ended December 31, 2012, 2013, 2014 and 2015.

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Severance and Other Exit Costs

9 Months Ended

Sep. 30, 2018

Restructuring and Related Activities [Abstract]

Severance and Other Exit Costs

Severance and Other Exit Costs

The Company continues to evaluate its data center, sales and marketing, support and engineering operations and the general and administrative function in an effort to optimize its cost structure. As a result, the Company may incur charges for employee severance, exiting facilities and restructuring data center commitments and other related costs.

2018 Restructuring Plan

In January 2018, the Company announced plans to eliminate approximately 71 positions, later increased to approximately 95 positions, primarily in the Asia Pacific region and to a lesser extent in the U.S., in order to streamline operations and create operational efficiencies (the "2018 Restructuring Plan"). During the three and nine months ended September 30, 2018, the Company incurred severance costs of $0.1 million and $3.0 million, and paid $0.6 million and $2.4 million, respectively, and had a remaining accrued severance liability of $0.6 million as of September 30, 2018 in connection with the 2018 Restructuring Plan.

The Company expects to complete severance charges related to the 2018 Restructuring Plan during the year ending December 31, 2018.

2017 Restructuring Plan

In January 2017, the Company announced plans to close certain offices as part of a plan to consolidate certain web presence customer support operations, resulting in severance costs. These severance charges were associated with the elimination of approximately 660 positions, primarily in customer support. Additionally, the Company implemented additional restructuring plans to create operational efficiencies and synergies related to the Constant Contact acquisition, which resulted in additional severance charges for the elimination of approximately 50 positions. During the three and nine months ended September 30, 2018, in connection with these plans (together, the “2017 Restructuring Plan”), the Company recorded severance charges of $0.0 million and $0.0 million, respectively, and paid $0.5 million and $3.3 million, respectively. The Company had a remaining accrued severance liability of $0.4 million as of September 30, 2018.

In connection with the 2017 Restructuring Plan, the Company closed offices in Orem, Utah and relocated certain employees to its Tempe, Arizona office. During the three and nine months ended September 30, 2018, the Company recorded an expense of $0.0 million and reductions of $0.2 million, respectively, and paid $0.0 million and $0.1 million, respectively. The Company had a remaining accrued facility liability of $0.0 million as of September 30, 2018.

The Company expects to complete severance charges related to the 2017 Restructuring Plan during the year ending December 31, 2018.

2016 Restructuring Plan

In connection with the Company’s acquisition of Constant Contact on February 9, 2016, the Company implemented a plan to create operational efficiencies and synergies resulting in severance costs and facility exit costs (the “2016 Restructuring Plan”).

The severance charges were associated with the elimination of approximately 265 positions across the business. The Company incurred all employee-related charges associated with the 2016 Restructuring Plan during the year ended December 31, 2016 and all severance payments were complete at December 31, 2017. There is no severance accrual remaining as of September 30, 2018.

The 2016 Restructuring Plan included the closure of offices in San Francisco, California, Delray Beach, Florida, New York, New York, Miami, Florida, the United Kingdom and Brazil, and the relocation of certain employees to the Company's Austin, Texas office. The Company also closed a portion of the Constant Contact offices in Waltham, Massachusetts. During the three and nine months ended September 30, 2018, the Company recorded charges of $0.1 million and $0.2 million, respectively. The Company paid $0.5 million and $1.5 million, respectively, of facility costs related to the 2016 Restructuring Plan during the three and nine months ended September 30, 2018. The Company had a remaining accrued facility liability of $4.3 million as of September 30, 2018.

The Company completed facility-related charges associated with the 2016 Restructuring Plan during the year ended December 31, 2016, and expects to complete facility exit cost payments related to this plan during the year ending December 31, 2022.

Activity of Combined Restructuring Plans

The following table provides a summary of the aggregate activity for the nine months ended September 30, 2018 related to the Company’s combined restructuring plans' severance accrual:

	Employee  Severance
	(in thousands)
	Total
Balance at December 31, 2017	$	3,668
Severance charges	2,978
Cash paid	(5,646		)
Balance at September 30, 2018	$	1,000

The following table provides a summary of the aggregate activity for the nine months ended September 30, 2018 related to the Company’s combined restructuring plans' facilities exit accrual:

	Facilities
	(in thousands)
	Total
Balance at December 31, 2017	$	6,005
Facility adjustments	43
Sublease income received	322
Cash paid	(2,080		)
Balance at September 30, 2018	$	4,290

The following table presents restructuring charges recorded in the consolidated statements of operations and comprehensive loss for the periods presented:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2017		2018		2017		2018
	(in thousands)
Cost of revenue	$	449	$	37	$	3,892	$	1,443
Sales and marketing	1,011		17		3,260		133
Engineering and development	271		33		1,349		389
General and administrative	2,758		110		6,083		1,056
Total restructuring charges	$	4,489	$	197	$	14,584	$	3,021

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

From time to time, the Company is involved in legal proceedings or subject to claims arising in the ordinary course of its business. The Company is not presently involved in any such legal proceeding or subject to any such claim that, in the opinion of its management, would have a material adverse effect on its business, operating results or financial condition. However, the results of such legal proceedings or claims cannot be predicted with certainty, and regardless of the outcome, can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources and other factors. Neither the ultimate outcome of the Machado and McGee shareholder litigation matters listed below nor an estimate of any probable losses or any reasonably possible losses (other than the reserves specifically discussed below) can be assessed at this time.

The Company received a subpoena dated December 10, 2015 from the Boston Regional Office of the SEC, requiring the production of certain documents, including, among other things, documents related to its financial reporting, including operating and non-GAAP metrics, refund, sales and marketing practices and transactions with related parties. On June 5, 2018, the Company announced that it had settled both this investigation and the Constant Contact investigation discussed below by consenting to the SEC's entry of a cease and desist order (the "Order"), without admitting or denying the SEC's findings set forth in the Order, and by paying a civil monetary penalty. The Company accrued the penalty in the fiscal quarter ended September 30, 2017 and paid the penalty in the fiscal quarter ended June 30, 2018.

On May 4, 2015, Christopher Machado, a purported holder of the Company’s common stock, filed a civil action in the United States District Court for the District of Massachusetts against the Company and its former chief executive officer and former chief financial officer, captioned Machado v. Endurance International Group Holdings, Inc., et al., Civil Action No. 1:15-cv-11775-GAO. The plaintiff filed an amended complaint on December 8, 2015, and a second amended complaint on March 18, 2016. The Company moved to dismiss the second amended complaint, but before the court ruled on the Company's motion, with the Company's assent, the plaintiff filed a third amended complaint on June 30, 2017. In the third amended complaint, plaintiffs Christopher Machado and Michael Rubin allege claims for violations of Section 10(b) and 20(a) of the Exchange Act, and Sections 11, 12(a)(2), and 15 of the Securities Act, on behalf of a purported class of purchasers of the Company’s securities between October 25, 2013 and December 16, 2015, including persons or entities who purchased or acquired the Company's shares pursuant or traceable to the registration statement and prospectus issued in connection with the Company's October 25, 2013 initial public offering. The plaintiffs challenge as false or misleading certain of the Company’s disclosures about the total number of subscribers, average revenue per subscriber, the number of customers paying over $500 per year for the Company’s products and services, and the average number of products sold per subscriber. The plaintiffs seek, on behalf of themselves and the purported class, compensatory damages, rescissory damages as to class members who purchased shares pursuant to the offering and the plaintiffs' costs and expenses of litigation. The Company moved to dismiss the third amended complaint on August 29, 2017. The plaintiffs' memorandum in opposition to the Company's motion to dismiss was filed on October 30, 2017, and the Company's reply memorandum was filed on December 14, 2017. On January 12, 2018, the parties filed a joint motion to stay all proceedings pending the outcome of a mediation between the parties scheduled for February 23, 2018. The court granted the stay on February 21, 2018. The parties did not resolve the matter at the mediation on February 23, 2018, but continued thereafter to productively discuss a potential resolution of this matter. The court extended the stay to allow the parties to continue their discussions. On May 17, 2018, the parties executed a term sheet memorializing their agreement in principal to settle the action. The parties then negotiated the terms and conditions of a stipulation and agreement of settlement and related papers, which provide for the release of all claims asserted against the Company and its former chief executive officer and former chief financial officer. On July 6, 2018, the plaintiffs filed an unopposed motion seeking preliminary approval of the proposed settlement, certification of the proposed settlement class for settlement purposes only, and approval of notice to the settlement class. The court has not yet ruled on this motion. The Company's contribution to the settlement pool under the proposed settlement would be approximately equal to the amount it reserved in connection with a possible settlement of this action. The aggregate amount of this reserve and the reserve for the Constant Contact McGee litigation discussed below was originally $8.5 million recorded during the three months ended March 31, 2018, and subsequently adjusted to $8.3 million during the three months ended June 30, 2018 and to $7.3 million during the three months ended September 30, 2018. The Company cannot make any assurances as to whether or when the settlement will be approved by the court.

Constant Contact

On February 9, 2016, the Company acquired all of the outstanding shares of common stock of Constant Contact.

On December 10, 2015, Constant Contact received a subpoena from the Boston Regional Office of the SEC, requiring the production of documents pertaining to Constant Contact’s sales, marketing, and customer retention practices, as well as periodic public disclosure of financial and operating metrics. As discussed above, on June 5, 2018, the Company announced that it had settled both this investigation and the Endurance investigation discussed above by consenting to the SEC's entry of the Order, without admitting or denying the SEC's findings set forth in the Order, and by paying a civil monetary penalty. The Company accrued the penalty in its fiscal quarter ended September 30, 2017 and paid the penalty in the fiscal quarter ended June 30, 2018.

On August 7, 2015, a purported class action lawsuit, William McGee v. Constant Contact, Inc., et al, was filed in the United States District Court for the District of Massachusetts against Constant Contact and two of its former officers. An amended complaint, which named an additional former officer as a defendant, was filed December 19, 2016. The lawsuit asserts claims under Sections 10(b) and 20(a) of the Exchange Act, and is premised on allegedly false and/or misleading statements, and non-disclosure of material facts, regarding Constant Contact’s business, operations, prospects and performance during the proposed class period of October 23, 2014 to July 23, 2015. The parties mediated the claims on March 27, 2018, and as a result of that mediation reached an agreement in principle with the lead plaintiff to settle the action. The parties then negotiated the terms and conditions of a stipulation and agreement of settlement and related papers, which provide for the release of all claims asserted against Constant Contact and its former officers. On May 18, 2018, the plaintiffs filed an unopposed motion seeking preliminary approval of the proposed settlement, certification of the proposed settlement class for settlement purposes only, and approval of notice to the settlement class. The court has not yet ruled on this motion. The Company's contribution to the settlement pool under the proposed settlement would be approximately equal to the amount it reserved in connection with a possible settlement of this action. The aggregate amount of this reserve and the reserve for the Endurance Machado litigation discussed above was originally $8.5 million recorded during the three months ended March 31, 2018, and subsequently adjusted to $8.3 million during the three months ended June 30, 2018 and to $7.3 million during the three months ended September 30, 2018. The Company cannot make any assurances as to whether or when the settlement will be approved by the court.

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Related Party Transactions

9 Months Ended

Sep. 30, 2018

Related Party Transactions [Abstract]

Related Party Transactions

Related Party Transactions

The Company has various agreements in place with related parties. Below are details of significant related party transactions that occurred during the three and nine months ended September 30, 2017 and 2018.

Tregaron:

The Company has contracts with Tregaron India Holdings, LLC and its affiliates, including Diya Systems (Mangalore) Private Limited, Glowtouch Technologies Pvt. Ltd. and Touchweb Designs, LLC (collectively, “Tregaron”), for outsourced services, including email- and chat-based customer and technical support, network monitoring, engineering and development support and web design and web building services, and an office space lease. These entities are owned directly or indirectly by family members of the Company’s former chief executive officer, who is also a holder of more than 5.0% of the Company's capital stock.

The following table presents the amounts of related party transactions recorded in the consolidated statements of operations and comprehensive loss for the periods presented relating to services provided by Tregaron and its affiliates under these agreements:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2018		2017		2018
	(in thousands)
Cost of revenue	$	3,100	$	3,330	$	9,100	$	10,555
Sales and marketing	500		160		1,000		605
Engineering and development	200		290		850		960
General and administrative	50		20		150		65
Total related party transaction expense, net	$	3,850	$	3,800	$	11,100	$	12,185

As of December 31, 2017, approximately $1.5 million was included in accounts payable and accrued expense relating to services provided by Tregaron. As of September 30, 2018, approximately $2.2 million was included in accounts payable and accrued expense relating to services provided by Tregaron.

Innovative Business Services, LLC:

The Company also has agreements with Innovative Business Services, LLC (“IBS”), which provides multi-layered third-party security and website performance applications that are sold by the Company. During the three months ended September 30, 2018, a director of the Company and the Company’s former chief executive officer, who is a holder of more than 5.0% of the Company's capital stock, continued to hold a material financial interest in IBS.

During the quarter ended March 31, 2017, the Company’s principal agreement with this entity was amended to permit the Company to purchase a specific IBS website performance product at no charge, and in exchange, to increase the revenue share to IBS on certain website performance products. The Company records revenue on the sale of IBS products on a net basis, since the Company views IBS as the primary obligor to deliver these services. As a result, the revenue share paid by the Company to IBS is recorded as contra-revenue. Further, IBS pays the Company a fee on sales made by IBS directly to customers of the Company. The Company records these fees as revenue.

The following table presents the amounts of related party transactions recorded in the consolidated statements of operations and comprehensive loss for the periods presented relating to services provided by IBS and its affiliates under these agreements:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2018			2017			2018
	(in thousands)
Revenue	$	(1,050	)	$	(1,430	)	$	(2,150	)	$	(4,075	)
Revenue (contra)	1,850			1,800			4,050			6,140
Total related party transaction impact to revenue	$	800		$	370		$	1,900		$	2,065
Cost of revenue	150			170			350			490
Total related party transaction expense, net	$	950		$	540		$	2,250		$	2,555

As of December 31, 2017 and September 30, 2018, approximately $0.2 million and $0.1 million, respectively, was included in prepaid expenses and other current assets relating to the Company’s agreements with IBS.

As of December 31, 2017 and September 30, 2018, approximately $1.3 million and $1.2 million, respectively was included in accounts payable and accrued expense relating to the Company’s agreements with IBS.

As of December 31, 2017 and September 30, 2018, approximately $0.7 million and $1.0 million, respectively, was included in accounts receivable relating to the Company’s agreements with IBS.

Goldman, Sachs & Co.:

The Company entered into a three-year interest rate cap on December 9, 2015 with a subsidiary of Goldman, Sachs & Co. ("Goldman"). The Company paid $3.0 million to the Goldman subsidiary as a premium for the interest rate cap during the year ended December 31, 2016. No further premiums are payable under this interest rate cap. Goldman is a significant stockholder of the Company. Refer to Note 6:Fair Value Measurements, for further details.

Goldman Sachs Lending Partners LLC, a subsidiary of Goldman, was one of the joint bookrunners and joint lead arrangers for the 2017 Refinancing and the 2018 Refinancing. In that capacity, Goldman Sachs Lending Partners LLC received an arrangement fee of $0.5 million and $0.3 million, respectively, and was reimbursed for an immaterial amount of expenses.

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Segment Information

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Segment Information

Segment Information

Operating segments are defined as components of an enterprise that engage in business activities for which discrete financial information is available and regularly reviewed by the CODM.

The Company experienced significant changes in its management structure during fiscal year 2017, including a change in its chief executive officer, who is the Company's CODM. The Company's leadership structure has been revised to centralize management of certain domain-focused brands in order to improve overall performance. As a result of these management changes, management has revised internal financial reporting structures, and broken the former web presence segment into two reportable segments, web presence and domains. The Company's third reportable segment, email marketing, remains unchanged.

The products and services included in each of the three reportable segments are as follows:

Web Presence. The web presence segment consists primarily of the Company's web hosting brands, such as Bluehost and HostGator, and related products such as domain names, website security, website design tools and services, and e-commerce products.

Domain. The domain segment consists of domain-focused brands such as Domain.com, ResellerClub and LogicBoxes as well as certain web hosting brands that are under common management with domain-focused brands. This segment sells domain names and domain management services to resellers and end users, as well as premium domain names, and also generates advertising revenue from domain name parking. It also resells domain names and domain management services to the web presence segment.

Email marketing. The email marketing segment consists of Constant Contact email marketing tools and related products and the Company's SinglePlatform digital storefront solution.

The Company measures profitability of these segments based on revenue, gross profit, and adjusted EBITDA. The accounting policies of each segment are the same as those described in the summary of significant accounting policies; please refer to Note 2: Summary of Significant Accounting Policies, for further details. The following tables contain financial information for each reportable segment for the three and nine months ended September 30, 2017 and 2018:

	Three Months Ended September 30, 2017
	Web presence			Email marketing		Domain			Total
	(in thousands)
	(as revised)
Revenue(1)	$	159,530		$	101,526	$	34,166		$	295,222
Gross profit	$	77,032		$	65,286	$	(5,961	)	$	136,357
Net (loss) income	$	(20,403	)	$	2,202	$	(22,063	)	$	(40,264	)
Interest expense, net(2)	14,686			20,514		445			35,645
Income tax expense (benefit)	798			1,323		861			2,982
Depreciation	9,399			3,233		939			13,571
Amortization of other intangible assets	14,884			18,770		1,693			35,347
Stock-based compensation	15,510			1,668		2,402			19,580
Restructuring expenses	3,468			682		339			4,489
(Gain) loss of unconsolidated entities	(33		)	—		—			(33		)
Impairment of other long-lived assets	600			—		13,848			14,448
SEC investigations reserve	4,323			2,751		926			8,000
Adjusted EBITDA	$	43,232		$	51,143	$	(610	)	$	93,765
	Three Months Ended September 30, 2018
	Web presence			Email marketing		Domain			Total
	(in thousands)
Revenue(1)	$	149,871		$	102,111	$	31,788		$	283,770
Gross profit	$	75,074		$	71,356	$	8,395		$	154,825
Net (loss) income	$	(7,565	)	$	6,596	$	(5,366	)	$	(6,335	)
Interest expense, net(2)	18,132			17,128		1,978			37,238
Income tax expense (benefit)	6,136			4,179		1,400			11,715
Depreciation	8,401			2,538		950			11,889
Amortization of other intangible assets	11,941			13,384		852			26,177
Stock-based compensation	1,569			4,472		1,509			7,550

Restructuring expenses	54			141			2			197
Shareholder litigation reserve	(768		)	—			(167		)	(935		)
Adjusted EBITDA	$	37,900		$	48,438		$	1,158		$	87,496
	Nine Months Ended September 30, 2017
	Web presence			Email marketing			Domain			Total
	(in thousands)
	(as revised)
Revenue(1)	$	483,661		$	298,401		$	100,555		$	882,617
Gross profit	$	229,186		$	188,181		$	11,053		$	428,420
Net (loss) income	$	(67,226	)	$	(8,026	)	$	(32,005	)	$	(107,257	)
Interest expense, net(2)	50,877			68,212			1,427			120,516
Income tax expense (benefit)	12,645			(4,821		)	3,560			11,384
Depreciation	27,401			10,632			2,700			40,733
Amortization of other intangible assets	44,431			55,697			4,426			104,554
Stock-based compensation	38,023			5,392			5,334			48,749
Restructuring expenses	8,944			4,743			897			14,584
Transaction expenses and charges	—			773			—			773
(Gain) loss of unconsolidated entities	(72		)	—			—			(72		)
Impairment of other long-lived assets	600			—			13,848			14,448
SEC investigations reserve	4,323			2,751			926			8,000
Shareholder litigation reserve	—			—			—			—
Adjusted EBITDA	$	119,946		$	135,353		$	1,113		$	256,412
	Nine Months Ended September 30, 2018
	Web presence			Email marketing			Domain			Total
	(in thousands)
Revenue(1)	$	457,603		$	306,712		$	98,581		$	862,896
Gross profit	$	225,149		$	214,909		$	29,241		$	469,299
Net (loss) income	$	(20,549	)	$	22,350		$	(10,037	)	$	(8,236	)
Interest expense, net(2)	53,503			50,866			6,834			111,203
Income tax expense (benefit)	960			8,009			(143		)	8,826
Depreciation	24,769			9,090			2,894			36,753
Amortization of other intangible assets	35,812			39,716			2,362			77,890
Stock-based compensation	12,066			7,168			2,698			21,932
Restructuring expenses	1,654			723			644			3,021
(Gain) loss of unconsolidated entities	2			—			—			2
Shareholder litigation reserve	4,780			1,500			1,045			7,325
Adjusted EBITDA	$	112,997		$	139,422		$	6,297		$	258,716

⁽¹⁾  Revenue excludes intercompany transactions relating to domain sales and domain services from the domain segment to the web presence segment of $2.5 million and $8.1 million, respectively, for the three and nine months ended September 30, 2017, and $2.5 million and $7.6 million, respectively, for the three and nine months ended September 30, 2018.

⁽²⁾  Interest expense includes impact of amortization of deferred financing costs, original issuance discounts and interest income.

The CODM does not use asset information to allocate resources or make operating decisions.

The Company has revised amounts reported for gross profit, net loss and adjusted EBITDA for the web presence and the domain segments in the segment disclosures, which impacted fiscal years 2016 and 2017. The amounts reported for the email marketing segment were not impacted. The revisions arose because of an error in the classification of certain domain registration expenses. Domain segment gross profit, net income (loss) and adjusted EBITDA were overstated by $3.0 million for fiscal year 2016, and by $6.9 million for fiscal year 2017, and web presence segment gross profit, net income (loss) and adjusted EBITDA were understated by equal amounts. Consolidated results were not impacted by this misstatement. The following table reflects the differences between the amounts as reported and the amounts as revised for gross profit, net loss and adjusted EBITDA for the web presence and domain segments for the three and nine months ended September 30, 2017:

	Three Months Ended September 30, 2017
	Web presence						Domain
	(in thousands)
	(as reported)			(as revised)			(as reported)			(as revised)
Gross profit	$	75,097		$	77,032		$	(4,026	)	$	(5,961	)
Net loss	$	(22,416	)	$	(20,403	)	$	(20,050	)	$	(22,063	)
Adjusted EBITDA	$	41,297		$	43,232		$	1,325		$	(610	)
	Nine Months Ended September 30, 2017
	Web presence						Domain
	(in thousands)
	(as reported)			(as revised)			(as reported)			(as revised)
Gross profit	$	224,300		$	229,186		$	15,939		$	11,053
Net loss	$	(73,346	)	$	(67,226	)	$	(25,885	)	$	(32,005	)
Adjusted EBITDA	$	115,060		$	119,946		$	5,999		$	1,113

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Subsequent Events

9 Months Ended

Sep. 30, 2018

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

The Company evaluated all subsequent events occurring through November 2, 2018 to determine if any such events should be reflected in these financial statements. There were no material recognized subsequent events recorded in the September 30, 2018 financial statements.

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Supplemental Guarantor Financial Information

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Supplemental Guarantor Financial Information

Supplemental Guarantor Financial Information

In February 2016, EIG Investors Corp., a wholly-owned subsidiary of the Company (the “Issuer”), issued $350.0 million aggregate principal amount of its 10.875% Senior Notes due 2024 (refer to Note10: Notes Payable in the consolidated financial statements), which it exchanged for new 10.875% Senior Notes due 2024 pursuant to a registration statement on Form S-4. The registered exchange offer for the Senior Notes was completed on January 30, 2017. The Senior Notes are fully and unconditionally guaranteed, jointly and severally, on a senior unsecured basis by the Company, and the following wholly-owned subsidiaries: The Endurance International Group, Inc., Bluehost Inc., FastDomain Inc., Domain Name Holding Company, Inc., Endurance International Group – West, Inc., HostGator.com LLC, A Small Orange, LLC, Constant Contact, Inc., and SinglePlatform, LLC, (collectively, the “Subsidiary Guarantors”), subject to certain customary guarantor release conditions. The Company’s other domestic subsidiaries and its foreign subsidiaries (collectively, the “Non-Guarantor Subsidiaries”) have not guaranteed the Senior Notes.

The Company sold two immaterial guarantors, CardStar, Inc. and CardStar Publishing, LLC (collectively, "CardStar"), during the quarter ended December 31, 2016. CardStar was released and discharged from the guarantee as a result of the sale and no longer guarantees the debt of the Company as of December 1, 2016. Proceeds from the sale of CardStar were approximately $0.1 million.

The following tables present supplemental condensed consolidating balance sheet information of the Company (“Parent”), the Issuer, the Subsidiary Guarantors and the Non-Guarantor Subsidiaries as of December 31, 2017 and September 30, 2018, supplemental condensed consolidating results of operations for the three and nine months ended September 30, 2017 and 2018, and cash flow information for the nine months ended September 30, 2017 and 2018:

Condensed Consolidating Balance Sheets

December 31, 2017

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Assets:
Current assets:
Cash and cash equivalents	$	92		$	2		$	54,473		$	11,926		$	—		$	66,493
Restricted cash	—			—			2,472			153			—			2,625
Accounts receivable	—			—			12,386			3,559			—			15,945
Prepaid domain name registry fees	—			—			28,291			25,514			—			53,805
Prepaid expenses & other current assets	(12		)	86			20,062			9,191			—			29,327
Total current assets	80			88			117,684			50,343			—			168,195
Intercompany receivables, net	33,637			606,834			(498,213		)	(142,258		)	—			—
Property and equipment, net	—			—			81,693			13,759			—			95,452
Goodwill	—			—			1,673,851			176,731			—			1,850,582
Other intangible assets, net	—			—			450,778			4,662			—			455,440
Investment in subsidiaries	49,288			1,355,013			37,200			—			(1,441,501		)	—
Other assets	—			3,639			21,373			6,405			—			31,417
Total assets	$	83,005		$	1,965,574		$	1,884,366		$	109,642		$	(1,441,501	)	$	2,601,086
Liabilities and stockholders' equity:
Current liabilities:
Accounts payable	$	—		$	—		$	9,532		$	1,526		$	—		$	11,058
Accrued expenses and other current liabilities	—			24,509			75,819			8,151			—			108,479
Deferred revenue	—			—			309,395			52,545			—			361,940
Current portion of notes payable	—			33,945			—			—			—			33,945
Current portion of capital lease obligations	—			—			7,630			—			—			7,630
Deferred consideration, short-term	—			—			4,365			—			—			4,365
Total current liabilities	—			58,454			406,741			62,222			—			527,417
Deferred revenue, long-term	—			—			81,199			9,773			—			90,972
Notes payable	—			1,858,300			—			—			—			1,858,300
Capital lease obligations	—			—			7,719			—			—			7,719
Deferred consideration	—			—			3,551			—			—			3,551
Other long-term liabilities	—			(468		)	30,143			447			—			30,122
Total liabilities	—			1,916,286			529,353			72,442			—			2,518,081
Equity	83,005			49,288			1,355,013			37,200			(1,441,501		)	83,005
Total liabilities and stockholders' equity	$	83,005		$	1,965,574		$	1,884,366		$	109,642		$	(1,441,501	)	$	2,601,086

Condensed Consolidating Balance Sheets

September 30, 2018

(in thousands)

	Parent		Issuer		Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Assets:
Current assets:
Cash and cash equivalents	$	207	$	2	$	59,890		$	29,575		$	—		$	89,674
Restricted cash	—		—		1,731			101			—			1,832
Accounts receivable	—		—		11,906			2,199			—			14,105
Prepaid domain name registry fees	—		—		32,729			24,385			—			57,114
Prepaid commissions	—		—		41,085			659			—			41,744
Prepaid expenses & other current assets	—		174		18,361			8,566			—			27,101
Total current assets	207		176		165,702			65,485			—			231,570
Intercompany receivables, net	34,278		441,001		(354,298		)	(120,981		)	—			—
Property and equipment, net	—		—		66,772			12,543			—			79,315
Goodwill	—		—		1,673,851			175,413			—			1,849,264
Other intangible assets, net	—		—		376,441			1,229			—			377,670
Investment in subsidiaries	122,114		1,510,592		74,478			—			(1,707,184		)	—
Prepaid commissions, net of current portion	—		—		41,346			735			—			42,081
Other assets	—		9,742		22,351			6,410			—			38,503
Total assets	$	156,599	$	1,961,511	$	2,066,643		$	140,834		$	(1,707,184	)	$	2,618,403
Liabilities and stockholders' equity:
Current liabilities:
Accounts payable	$	—	$	—	$	10,239		$	573		$	—		$	10,812
Accrued expenses and other current liabilities	—		15,197		69,493			4,376			—			89,066
Deferred revenue	—		—		330,178			50,386			—			380,564
Current portion of notes payable	—		31,606		—			—			—			31,606
Current portion of capital lease obligations	—		—		7,595			—			—			7,595
Deferred consideration, short-term	—		—		2,386			—			—			2,386
Total current liabilities	—		46,803		419,891			55,335			—			522,029
Deferred revenue, long-term	—		—		86,133			10,286			—			96,419
Notes payable	—		1,792,436		—			—			—			1,792,436
Capital lease obligations	—		—		2,067			—			—			2,067
Deferred consideration	—		—		1,342			—			—			1,342
Other long-term liabilities	—		158		46,618			736			—			47,512
Total liabilities	—		1,839,397		556,051			66,357			—			2,461,805
Equity	156,599		122,114		1,510,592			74,477			(1,707,184		)	156,598
Total liabilities and stockholders' equity	$	156,599	$	1,961,511	$	2,066,643		$	140,834		$	(1,707,184	)	$	2,618,403

Condensed Consolidating Statements of Operations and Comprehensive Income (Loss)

Three Months Ended September 30, 2017

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenue	$	—		$	—		$	266,985		$	30,019		$	(1,782	)	$	295,222
Cost of revenue	—			—			139,044			21,155			(1,334		)	158,865
Gross profit	—			—			127,941			8,864			(448		)	136,357
Operating expense:
Sales and marketing	—			—			61,376			4,900			—			66,276
Engineering and development	—			—			17,412			2,470			—			19,882
General and administrative	—			56			50,353			1,465			(605		)	51,269
Total operating expense	—			56			129,141			8,835			(605		)	137,427
(Loss) income from operations	—			(56		)	(1,200		)	29			157			(1,070		)
Interest expense and other income, net	—			35,661			756			(172		)	—			36,245
(Loss) income before income taxes and equity earnings of unconsolidated entities	—			(35,717		)	(1,956		)	201			157			(37,315		)
Income tax (benefit) expense	—			(13,201		)	15,494			689			—			2,982
(Loss) income before equity earnings of unconsolidated entities	—			(22,516		)	(17,450		)	(488		)	157			(40,297		)
Equity loss (income) of unconsolidated entities, net of tax	40,422			17,906			456			—			(58,817		)	(33		)
Net (loss) income	$	(40,422	)	$	(40,422	)	$	(17,906	)	$	(488	)	$	58,974		$	(40,264	)
Net (loss) income attributable to Endurance International Group Holdings, Inc.	$	(40,422	)	$	(40,422	)	$	(17,906	)	$	(488	)	$	58,974		$	(40,264	)
Comprehensive income (loss):
Foreign currency translation adjustments	—			—			—			1,070			—			1,070
Unrealized gain on cash flow hedge, net of taxes	—			83			—			—			—			83
Total comprehensive (loss) income	$	(40,422	)	$	(40,339	)	$	(17,906	)	$	582		$	58,974		$	(39,111	)

Condensed Consolidating Statements of Operations and Comprehensive Income (Loss)

Nine Months Ended September 30, 2017

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenue	$	—		$	—		$	788,806		$	98,321		$	(4,510	)	$	882,617
Cost of revenue	—			—			392,447			65,392			(3,642		)	454,197
Gross profit	—			—			396,359			32,929			(868		)	428,420
Operating expense:
Sales and marketing	—			—			195,392			15,765			(3		)	211,154
Engineering and development	—			—			51,053			9,340			—			60,393
General and administrative	—			166			123,736			7,632			(605		)	130,929
Transaction costs	—			—			773			—			—			773
Total operating expense	—			166			370,954			32,737			(608		)	403,249
(Loss) income from operations	—			(166		)	25,405			192			(260		)	25,171
Interest expense and other income, net	—			120,313			1,150			(347		)	—			121,116
(Loss) income before income taxes and equity earnings of unconsolidated entities	—			(120,479		)	24,255			539			(260		)	(95,945		)
Income tax (benefit) expense	—			(44,512		)	54,744			1,152			—			11,384
(Loss) income before equity earnings of unconsolidated entities	—			(75,967		)	(30,489		)	(613		)	(260		)	(107,329		)
Equity loss (income) of unconsolidated entities, net of tax	106,999			31,033			543			—			(138,647		)	(72		)
Net (loss) income	$	(106,999	)	$	(107,000	)	$	(31,032	)	$	(613	)	$	138,387		$	(107,257	)
Net loss attributable to non-controlling interest	—			—			7,524			—			—			7,524
Net (loss) income attributable to Endurance International Group Holdings, Inc.	$	(106,999	)	$	(107,000	)	$	(38,556	)	$	(613	)	$	138,387		$	(114,781	)
Comprehensive income (loss):
Foreign currency translation adjustments	—			—			—			2,984			—			2,984
Unrealized gain on cash flow hedge, net of taxes	—			(309		)	—			—			—			(309		)
Total comprehensive (loss) income	$	(106,999	)	$	(107,309	)	$	(38,556	)	$	2,371		$	138,387		$	(112,106	)

Condensed Consolidating Statements of Operations and Comprehensive Income (Loss)

Three Months Ended September 30, 2018

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenue	$	—		$	—		$	258,388		$	26,730		$	(1,348	)	$	283,770
Cost of revenue	—			—			110,808			19,485			(1,348		)	128,945
Gross profit	—			—			147,580			7,245			—			154,825
Operating expense:
Sales and marketing	—			—			60,341			3,490			—			63,831
Engineering and development	—			—			20,524			2,159			—			22,683
General and administrative	(11		)	52			24,187			1,465			—			25,693
Total operating expense	(11		)	52			105,052			7,114			—			112,207
(Loss) income from operations	11			(52		)	42,528			131			—			42,618
Interest expense and other income, net	—			37,305			74			(141		)	—			37,238
(Loss) income before income taxes and equity earnings of unconsolidated entities	11			(37,357		)	42,454			272			—			5,380
Income tax (benefit) expense	—			(8,891		)	22,020			(1,414		)	—			11,715
(Loss) income before equity earnings of unconsolidated entities	11			(28,466		)	20,434			1,686			—			(6,335		)
Equity loss (income) of unconsolidated entities, net of tax	6,346			(22,120		)	(1,686		)	—			17,460			—
Net (loss) income	$	(6,335	)	$	(6,346	)	$	22,120		$	1,686		$	(17,460	)	$	(6,335	)
Net (loss) income attributable to Endurance International Group Holdings, Inc.	$	(6,335	)	$	(6,346	)	$	22,120		$	1,686		$	(17,460	)	$	(6,335	)
Comprehensive income (loss):
Foreign currency translation adjustments	—			—			—			(644		)	—			(644		)
Unrealized gain on cash flow hedge, net of taxes	—			812			—			—			—			812
Total comprehensive (loss) income	$	(6,335	)	$	(5,534	)	$	22,120		$	1,042		$	(17,460	)	$	(6,167	)

Condensed Consolidating Statements of Operations and Comprehensive Income (Loss)

Nine Months Ended September 30, 2018

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenue	$	—		$	—		$	783,611		$	83,995		$	(4,710	)	$	862,896
Cost of revenue	—			—			338,885			59,422			(4,710		)	393,597
Gross profit	—			—			444,726			24,573			—			469,299
Operating expense:
Sales and marketing	—			—			187,175			10,558			—			197,733
Engineering and development	—			—			58,850			5,709			—			64,559
General and administrative	(11		)	169			124,317			(29,263		)	—			95,212
Total operating expense	(11		)	169			370,342			(12,996		)	—			357,504
(Loss) income from operations	11			(169		)	74,384			37,569			—			111,795
Interest expense and other income, net	—			111,051			539			(387		)	—			111,203
(Loss) income before income taxes and equity earnings of unconsolidated entities	11			(111,220		)	73,845			37,956			—			592
Income tax (benefit) expense	—			(26,470		)	35,897			(601		)	—			8,826
(Loss) income before equity earnings of unconsolidated entities	11			(84,750		)	37,948			38,557			—			(8,234		)
Equity loss (income) of unconsolidated entities, net of tax	8,247			(76,503		)	(38,554		)	18			106,794			2
Net (loss) income	$	(8,236	)	$	(8,247	)	$	76,502		$	38,539		$	(106,794	)	$	(8,236	)
Net (loss) income attributable to Endurance International Group Holdings, Inc.	$	(8,236	)	$	(8,247	)	$	76,502		$	38,539		$	(106,794	)	$	(8,236	)
Comprehensive income (loss):
Foreign currency translation adjustments	—			—			—			(2,489		)	—			(2,489		)
Unrealized gain on cash flow hedge, net of taxes	—			1,996			—			—			—			1,996
Total comprehensive (loss) income	$	(8,236	)	$	(6,251	)	$	76,502		$	36,050		$	(106,794	)	$	(8,729	)

Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2017

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations		Consolidated
Net cash (used in) provided by operating activities	$	(32	)	$	(72,687	)	$	204,768		$	(3,183	)	$	—	$	128,866
Cash flows from investing activities:
Purchases of property and equipment	—			—			(28,140		)	(3,955		)	—		(32,095		)
Proceeds from sale of property and equipment	—			—			292			—			—		292
Proceeds from note receivable	—			—			—			—			—		—
Purchases of intangible assets	—			—			(1,932		)	(34		)	—		(1,966		)
Net cash used in investing activities	—			—			(29,780		)	(3,989		)	—		(33,769		)
Cash flows from financing activities:
Proceeds from issuance of notes payable and draws on revolver	—			1,693,007			—			—			—		1,693,007
Repayment of notes payable and revolver	—			(1,733,147		)	—			—			—		(1,733,147		)
Payment of financing costs	—			(6,304		)	—			—			—		(6,304		)
Payment of deferred consideration	—			—			(4,550		)	(858		)	—		(5,408		)
Payment of redeemable non-controlling interest liability	—			—			(25,000		)	—			—		(25,000		)
Principal payments on capital lease obligations	—			—			(5,679		)	—			—		(5,679		)
Proceeds from exercise of stock options	1,548			—			—			—			—		1,548
Intercompany loans and investments	(1,058		)	119,128			(124,060		)	5,990			—		—
Net cash (used in) provided by financing activities	490			72,684			(159,289		)	5,132			—		(80,983		)
Net effect of exchange rate on cash and cash equivalents and restricted cash	—			—			—			2,156			—		2,156
Net (decrease) increase in cash and cash equivalents and restricted cash	458			(3		)	15,699			116			—		16,270
Cash and cash equivalents and restricted cash:
Beginning of period	3			4			41,654			15,237			—		56,898
End of period	$	461		$	1		$	57,353		$	15,353		$	—	$	73,168

Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2018

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations		Consolidated
Net cash (used in) provided by operating activities	$	—		$	(88,464	)	$	180,852		$	41,205		$	—	$	133,593
Cash flows from investing activities:
Purchases of property and equipment	—			—			(22,159		)	(184		)	—		(22,343		)
Proceeds from sale of property and equipment	—			—			6			—			—		6
Net cash used in investing activities	—			—			(22,153		)	(184		)	—		(22,337		)
Cash flows from financing activities:
Proceeds from issuance of term loan and notes, net of original issue discounts	—			1,580,305			—			—			—		1,580,305
Repayment of term loans	—			(1,656,094		)	—			—			—		(1,656,094		)
Payment of financing costs	—			(1,580		)	—			—			—		(1,580		)
Payment of deferred consideration	—			—			(4,500		)	—			—		(4,500		)
Principal payments on capital lease obligations	—			—			(5,609		)	—			—		(5,609		)
Proceeds from exercise of stock options	756			—			—			—			—		756
Intercompany loans and investments	(641		)	165,833			(143,914		)	(21,278		)	—		—
Net cash provided by (used in) financing activities	115			88,464			(154,023		)	(21,278		)	—		(86,722		)
Net effect of exchange rate on cash and cash equivalents and restricted cash	—			—			—			(2,146		)	—		(2,146		)
Net increase (decrease) in cash and cash equivalents and restricted cash	115			—			4,676			17,597			—		22,388
Cash and cash equivalents and restricted cash:
Beginning of period	92			2			56,945			12,079			—		69,118
End of period	$	207		$	2		$	61,621		$	29,676		$	—	$	91,506

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Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Basis of Preparation

Basis of Preparation

The accompanying consolidated financial statements, which include the accounts of the Company and its subsidiaries, have been prepared using accounting principles generally accepted in the United States of America (“U.S. GAAP”). All intercompany transactions were eliminated on consolidation.

Segment Information

Segment Information

From the fourth quarter of fiscal year 2016, through the third quarter of fiscal year 2017, the Company had two reportable segments, web presence and email marketing. The Company experienced significant changes in its management structure during fiscal year 2017, including a change in its chief executive officer, who is the Company's chief operating decision maker ("CODM"). The Company's leadership structure has been revised to centralize management of certain domain-focused brands in order to improve overall performance. As a result of these management changes, management has revised internal financial reporting structures, and broken the former web presence segment into two reportable segments, web presence and domains. The Company's third reportable segment, email marketing, remains unchanged.

The products and services included in each of the three reportable segments are as follows:

Web Presence. The web presence segment consists primarily of the Company's web hosting brands, such as Bluehost and HostGator, and related products such as domain names, website security, website design tools and services, and e-commerce products.

Domain. The domain segment consists of domain-focused brands such as Domain.com, ResellerClub and LogicBoxes as well as certain web hosting brands that are under common management with domain-focused brands. This segment sells domain names and domain management services to resellers and end users, as well as premium domain names, and also generates advertising revenue from domain name parking. It also resells domain names and domain management services to the web presence segment.

Email Marketing. The email marketing segment consists of Constant Contact email marketing tools and related products and the SinglePlatform digital storefront solution.

The Company's segments share certain resources, primarily related to sales and marketing, engineering and general and administrative functions. Management allocates these costs to each respective segment based on a consistently applied methodology, primarily based on a percentage of revenue.

Use of Estimates

Use of Estimates

U.S. GAAP requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets, liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. These estimates, judgments and assumptions used in preparing the accompanying consolidated financial statements are based on the relevant facts and circumstances as of the date of the consolidated financial statements. Although the Company regularly assesses these estimates, judgments and assumptions used in preparing the consolidated financial statements, actual results could differ from those estimates. Changes in estimates are recorded in the period in which they become known. The more significant estimates reflected in these consolidated financial statements include estimates of fair value of assets acquired and liabilities assumed under purchase accounting related to the Company’s acquisitions and when evaluating goodwill and long-lived assets for potential impairment, the estimated useful lives of intangible and depreciable assets, revenue recognition for multiple-element arrangements, stock-based compensation, contingent consideration, derivative instruments, certain accruals, reserves and deferred taxes.

Unaudited Interim Financial Information

Unaudited Interim Financial Information

The accompanying interim consolidated balance sheet as of September 30, 2018, and the related consolidated statements of operations and comprehensive loss for the three and nine months ended September 30, 2017 and 2018, cash flows for the nine months ended September 30, 2017 and 2018, and the notes to consolidated financial statements are unaudited. These unaudited consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements. The unaudited consolidated financial statements include, in the opinion of management, all adjustments, consisting only of normal recurring adjustments that are necessary for a fair presentation of the Company’s financial position at September 30, 2018, results of operations for the three and nine months ended September 30, 2017 and 2018 and cash flows for the nine months ended September 30, 2017 and 2018. The consolidated results in the consolidated statements of operations and comprehensive loss are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2018.

Cash Equivalents

Cash Equivalents

Cash and cash equivalents include all highly liquid investments with remaining maturities of three months or less at the date of purchase.

Restricted Cash

Restricted Cash

Restricted cash is composed of certificates of deposit and cash held by merchant banks and payment processors, which provide collateral against any chargebacks, fees, or other items that may be charged back to the Company by credit card companies and other merchants, and collateral for certain facility leases.

Accounts Receivable

Accounts Receivable

Accounts receivable is primarily composed of cash due from credit card companies for unsettled transactions charged to subscribers’ credit cards. As these amounts reflect authenticated transactions that are fully collectible, the Company does not maintain an allowance for doubtful accounts. The Company also accrues for earned referral fees and commissions, which are governed by reseller or affiliate agreements, when the amount is reasonably estimable.

Prepaid Domain Name Registry Fees

Prepaid Domain Name Registry Fees

Prepaid domain name registry fees represent amounts that are paid in full at the time a domain is registered by one of the Company’s registrars on behalf of a customer. The registry fees are recognized on a straight-line basis over the term of the domain registration period.

Fair Value of Financial Instruments

Fair Value of Financial Instruments

The carrying amounts of the Company's financial instruments, which include cash equivalents, accounts receivable, accounts payable and certain accrued expenses, approximate their fair values due to their short maturities. The fair value of the Company's notes payable is based on the borrowing rates currently available to the Company for debt with similar terms and average maturities and approximates their carrying value.

Derivative Instruments and Hedging Activities

Derivative Instruments and Hedging Activities

FASB Accounting Standards Codification ("ASC") 815, Derivatives and Hedging, or ASC 815, provides the disclosure requirements for derivatives and hedging activities with the intent to provide users of financial statements with an enhanced understanding of: (a) how and why an entity uses derivative instruments, (b) how the entity accounts for derivative instruments and related hedged items, and (c) how derivative instruments and related hedged items affect an entity’s financial position, financial performance, and cash flows. Further, qualitative disclosures are required that explain the Company’s objectives and strategies for using derivatives, as well as quantitative disclosures about the fair value of and gains and losses on derivative instruments, and disclosures about credit-risk-related contingent features in derivative instruments.

As required by ASC 815, the Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Derivatives may also be designated as hedges of the foreign currency exposure of a net investment in a foreign operation. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain of its risks, even though hedge accounting does not apply or the Company elects not to apply hedge accounting.

In accordance with the FASB’s fair value measurement guidance in FASB Accounting Standards Update ("ASU") 2011-4, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements, the Company made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.

Property and Equipment

Property and Equipment

Property and equipment is recorded at cost or fair value if acquired in an acquisition. The Company also capitalizes the direct costs of constructing additional computer equipment for internal use, as well as upgrades to existing computer equipment which extend the useful life, capacity or operating efficiency of the equipment. Capitalized costs include the cost of materials, shipping and taxes. Materials used for repairs and maintenance of computer equipment are expensed and recorded as a cost of revenue. Materials on hand and construction-in-process are recorded as property and equipment. Assets recorded under capital lease are depreciated over the lease term. Depreciation is computed using the straight-line method over the estimated useful lives of the related assets as follows: 

Building	Thirty-five years
Software	Two to three years
Computers and office equipment	Three years
Furniture and fixtures	Five years
Leasehold improvements	Shorter of useful life or remaining term of the lease

Software Development Costs

Software Development Costs

The Company accounts for software development costs for internal-use software under the provisions of ASC 350-40, Internal-Use Software. Accordingly, certain costs to develop internal-use computer software are capitalized, provided these costs are expected to be recoverable.

Goodwill

Goodwill

Goodwill relates to amounts that arose in connection with the Company’s various business combinations and represents the difference between the purchase price and the fair value of the identifiable intangible and tangible net assets when accounted for using the purchase method of accounting. Goodwill is not amortized, but is subject to periodic review for impairment. Events that would indicate impairment and trigger an interim impairment assessment include, but are not limited to, current economic and market conditions, including a decline in the equity value of the Company's business, a significant adverse change in agreements that would materially affect reported operating results, business climate or operational performance of the business and an adverse action or assessment by a regulator. Additionally, a reorganization or change in the number of reporting units could result in the reassignment of goodwill between reporting units and may trigger an impairment assessment.

In accordance with ASC 350, Intangibles—Goodwill and Other, or ASC 350, the Company is required to review goodwill by reporting unit for impairment at least annually or more often if there are indicators of impairment present. Under U.S. GAAP, a reporting unit is either the equivalent of, or one level below, an operating segment. The Company has historically performed its annual goodwill test as of December 31 of each fiscal year.

As a result of changes in the Company’s management structure during fiscal year 2017, including the change in its chief executive officer / CODM, the Company has revised its internal financial reporting structure, which has resulted in a change to its reporting units. The Company has identified a total of ten reporting units under the new structure. With the increase in reporting units, the Company determined that more time would be required to perform future goodwill impairment tests, and as a result, decided to accelerate its annual goodwill impairment test date to October 31 of each fiscal year, starting with the fiscal year 2017 test.

Before testing goodwill at October 31, 2017, the Company allocated assets and liabilities to their respective reporting units. Goodwill was allocated to each reporting unit in accordance with ASC 350-20-40, which requires that goodwill be allocated based on the relative fair values of each reporting unit. After completing this valuation process, the Company allocated goodwill to seven reporting units. The Company did not allocate any goodwill to three smaller reporting units that were determined to have no material fair value.

The carrying value of each reporting unit is based on the assignment of the appropriate assets and liabilities to each reporting unit. Assets and liabilities were assigned to each reporting unit if the assets or liabilities are employed in the operations of the reporting unit and the asset and liability is considered in the determination of the reporting unit fair value. Certain assets and liabilities are shared by multiple reporting units, and were allocated to each reporting unit based on the relative size of a reporting unit, primarily based on revenue.

The fair value of each reporting unit is determined by the income approach. The Company also compared the fair value from the income approach to a market based approach to validate that the value derived from the income approach was reasonable. For the income approach, fair value is determined based on the present value of estimated future after-tax cash flows, discounted at an appropriate risk adjusted rate. The Company uses internal forecasts to estimate future after-tax cash flows, which includes an estimate of long-term future growth rates based on the long-term outlook for each reporting unit. Actual results may differ from those assumed in each forecast.

The Company derives discount rates using a capital asset pricing model and analyzing published rates for industries relevant to the reporting units to estimate the weighted average cost of capital. The Company uses discount rates that are commensurate with the risks and uncertainty inherent in the business and in internally developed forecasts. For fiscal year 2017, the Company used a discount rate of 10.0%, and also performed sensitivity analysis on the discount rates. For the market approach validation, values were derived based on valuation multiples from sales of comparable companies.

The Company has also early adopted the provisions of ASU 2017-4, which eliminates the second step of the goodwill impairment test. As a result, the goodwill impairment test as of October 31, 2017 includes only one step, which is a comparison of the carrying value of each reporting unit to its fair value, and any excess carrying value, up to the amount of goodwill allocated to that reporting unit, is impaired. The goodwill impairment test as of October 31, 2017 resulted in a $12.1 million impairment of goodwill to the Company's domain monetization reporting unit within the domain segment. The impairment is a direct result of a more rapid decline in domain parking revenue than originally expected, and to a lesser extent, reduced sales of premium domain names. Goodwill for this reporting unit has been completely impaired. Goodwill allocated to the other six reporting units was not impaired.

Long-Lived Assets

Long-Lived Assets

The Company’s long-lived assets consist primarily of intangible assets, including acquired subscriber relationships, trade names, intellectual property, developed technology, domain names available for sale and in-process research and development (“IPR&D”). The Company also has long-lived tangible assets, primarily consisting of property and equipment. The majority of the Company’s intangible assets are recorded in connection with its various acquisitions. The Company’s intangible assets are recorded at fair value at the time of their acquisition. The Company amortizes intangible assets over their estimated useful lives.

Determination of the estimated useful lives of the individual categories of intangible assets is based on the nature of the applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with finite lives other than developed technology is recognized in accordance with their estimated projected cash flows.

The Company evaluates long-lived intangible and tangible assets whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If indicators of impairment are present and undiscounted future cash flows are less than the carrying amount, the fair value of the assets is determined and compared to the carrying value. If the fair value is less than the carrying value, then the carrying value of the asset is reduced to the estimated fair value and an impairment loss is charged to expense in the period the impairment is identified. During the three and nine months ended September 30, 2017, the Company recognized an impairment charge of $13.8 million relating to certain domain name intangible assets acquired in 2014, which was recorded in cost of revenue in the consolidated statements of operations and comprehensive loss. The impairment resulted from diminished cash flows associated with this intangible asset. No such impairment losses have been identified in the three and nine months ended September 30, 2018.

Indefinite life intangible assets include domain names that are available for sale which are recorded at cost to acquire. These assets are not being amortized and are being tested for impairment annually and whenever events or changes in circumstance indicate that their carrying value may not be recoverable. When a domain name is sold, the Company records the cost of the domain in cost of revenue.

Acquired In-Process Research and Development (IPR&D)

Acquired In-Process Research and Development (IPR&D)

Acquired IPR&D represents the fair value assigned to research and development assets that the Company acquires in connection with business combinations that have not been completed at the date of acquisition. The acquired IPR&D is capitalized as an intangible asset and reviewed on a quarterly basis to determine future use. Any impairment loss of the acquired IPR&D is charged to expense in the period the impairment is identified.

Revenue Recognition

Revenue Recognition

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), or ASU 2014-09 or ASC 606, which supersedes nearly all existing revenue recognition guidance under U.S. GAAP. Since then, the FASB has also issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606), Principals versus Agent Considerations, ASU 2016-10, Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing, and ASU 2017-13, Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Amendments to SEC Paragraphs Pursuant to the Staff Announcement at the July 20, 2017 EITF Meeting and Rescission of Prior SEC Staff Announcements and Observer Comments, which further elaborate on the original ASU No. 2014-09. The Company adopted the guidance in ASC 606 on January 1, 2018. Revenue is recognized when control of the promised products or services is transferred to the Company’s customers, in an amount that reflects the consideration the Company expects to be entitled to for those products and services. In general, the Company determines revenue recognition through the following steps:

• Identification of the contract, or contracts, with the customer

• Identification of the performance obligations in the contract

• Determination of the transaction price

• Allocation of the transaction price to the performance obligations in the contract

• Recognition of revenue when, or as, the Company satisfies a performance obligation.

The Company provides cloud-based subscription services, which include website hosting and related add-ons, search engine optimization (SEO) services, domain registration services and email marketing.

Website hosting gives subscribers access to an environment where the Company hosts a customer’s website. The related contract terms are generally for one year, but can range from 30 days to 3 years. Website hosting services are typically sold in bundled offerings that include website hosting, domain registration services and various add-ons. The Company recognizes revenue for website hosting and domain registration services over the term of the contract.

The main add-on services related to website hosting are domain privacy, secure sockets layer (SSL) security, site backup and restoration, and website builder tools. These services may be included in website hosting bundles, or they may be purchased on a standalone basis. Certain add-on services are provided by third parties. In cases where the Company is acting as an agent for the sale of third party add-on services, the Company recognizes revenue on a net basis at the time of sale. In cases where the Company is acting as a principal for the sale of third party add-on services (i.e., the Company has the primary responsibility to provide specific goods or services, it has discretion to establish prices and it may assume inventory risk), the Company recognizes revenue on a gross basis over the term of the contract. The revenue for Company-provided add-on services is primarily recognized over the term of the contract.

SEO services are monthly subscriptions that provide a customer with increased traffic to their website over the term of the subscription. Revenue from SEO services is recognized over the monthly term of the contract.

In the case of domain registration services, the Company is an accredited registrar and can provide registration services to the customer, or it can select an accredited third party registrar to perform these duties. Domain registration services are generally annual subscriptions, but can cover multiple years. Revenue for these services is recognized over time.

Email marketing services provide subscribers with a cloud based platform that can send broadcast emails to a customer list managed by the subscriber. Pricing is based on contract list volume from the prior monthly period, which determines the contractual billing price for the upcoming month. Revenue for this service is recognized over the monthly term of the contract.

Non-subscription based services include certain professional services, primarily website design or re-design services, marketing development fund revenue ("MDF"), premium domain names and domain parking services.

Website design and re-design services are recognized when the service is complete.

Marketing development funds consist of commissions earned by the Company when a third party sells its products or services directly to the Company’s subscribers, and advertising revenue for third party ads placed on Company websites. The Company records revenue when the service is provided and calculates it based on the contractual revenue share arrangement or over the term of the advertisement.

Domain parking allows the Company to monetize certain of its premium domain names by loaning them to specialized third parties that generate advertising revenue from these parked domains on a pay per click ("PPC") basis. Revenue is recognized when earned and calculated based on the revenue share arrangement with the third party.

Revenue from the sale of premium domains is recognized when persuasive evidence of an arrangement to sell such domains exists and delivery of an authorization key to access the domain name has occurred. Premium domain names are paid for in advance prior to the delivery of the domain name.

For most of the Company’s performance obligations, the customer simultaneously receives and consumes the service over a period of time as the Company performs the service, resulting in the recognition of revenue over the subscription period. This method provides an appropriate depiction of the timing of the transfer of services to the customer. In limited instances, the customer obtains control of the promised service at a point in time, with no future obligations on the part of the Company. In these instances, the Company recognizes revenue at the point in time control is transferred. The contracts that the Company enters into typically do not contain any variable or non-cash considerations.

The Company maintains a reserve for refunds and chargebacks related to revenue that has been recognized and is expected to be refunded, as calculated based on observed historical trends. The Company had a refund and chargeback reserve of $0.5 million and $0.3 million as of December 31, 2017 and September 30, 2018, respectively. The portion of deferred revenue that is expected to be refunded at December 31, 2017 and September 30, 2018 was $1.8 million and $1.8 million, respectively. Based on refund history, approximately 83% of all refunds happen in the same fiscal month that the contract starts or renews, and approximately 96% of all refunds happen within 45 days of the contract start or renewal date.

The Company did not apply any practical expedients during its adoption of ASC 606. The Company elected to use the portfolio method in the calculation of the deferred contract assets.

Contracts with Multiple Performance Obligations

A considerable amount of the Company’s revenue is generated from transactions that are contracts with customers that may include hosting plans, domain name registrations, and other cloud-based products and services. In these cases, the Company determines whether the products and services are distinct performance obligations that should be accounted for separately versus together. The Company allocates revenue to each performance obligation based on its relative standalone selling price, generally based on the price charged to customers. Hosting services, domain name registrations, and other cloud-based products and services have distinct performance obligations and are often sold separately. If the promise is not distinct and therefore not a performance obligation, then the total transaction amount is allocated to the identified performance obligation based on a relative selling price hierarchy. When multiple performance obligations are included in a contract, the total transaction amount for the contract is allocated to the performance obligations based on a relative selling price hierarchy. The Company determines the relative selling price for a performance obligation based on standalone selling price (“SSP”). The Company determines SSP by considering its observed standalone selling prices, competitive prices in the marketplace and management judgment; these standalone selling prices may vary depending upon the particular facts and circumstances related to each deliverable. The Company analyzes the standalone selling prices used in its allocation of transaction amount, at a minimum, on a quarterly basis.

Deferred Revenue

The Company records deferred revenue when cash payments are received or are due in advance of the Company’s performance, including amounts that are refundable. The change in the deferred revenue balance for the nine months ended September 30, 2018 is primarily driven by cash payments received or due in advance of the Company satisfying its performance obligations, offset by $331.9 million of revenue recognized that were included in the deferred revenue balance at the beginning of the period.

The following table provides a reconciliation of the Company's deferred revenue as of September 30, 2018:

	Short-term			Long-term
	(in thousands)
Balance at December 31, 2017	$	361,940		$	90,972
Effect of adoption of ASC 606 to balances at December 31, 2017	20,275			2,882
Recognition of the beginning deferred revenue into revenue, as a result of performance obligations satisfied	(331,939		)	—
Cash received in advance during the period	657,821			193,119
Recognition of cash received in the period into revenue, as a result of performance obligations satisfied	(518,087		)	—
Reclassification between short-term and long-term	190,554			(190,554		)
Balance at September 30, 2018	$	380,564		$	96,419

The difference between the opening and closing balances of the Company’s deferred liabilities primarily results from the timing difference between the Company’s performance and the customer’s payment. During the nine months ended September 30, 2018, the Company recognized $331.9 million and $0.0 million, respectively, from beginning deferred revenue current and long-term balances existing at December 31, 2017. The Company did not recognize any revenue from performance obligations satisfied in prior periods.

The following table provides the remaining performance obligation amounts as of September 30, 2018. These amounts are equivalent to the ending deferred revenue balance of $477.0 million, which includes both short and long-term amounts:

	Web presence		Email marketing		Domain		Total
	(in thousands)
Remaining performance obligation, short-term	$	265,984	$	55,055	$	59,525	$	380,564
Remaining performance obligation, long-term	81,805		—		14,614		96,419
Total	$	347,789	$	55,055	$	74,139	$	476,983

This backlog of revenue related to future performance obligations is prepaid by customers and supported by executed contracts with customers. The Company has established a reserve of $0.3 million for refunds and chargebacks, 96% of which is expected to materialize in the first 45 days. The remainder of the deferred revenue is expected to be recognized in future periods.

Deferred Customer Acquisition Costs

As a result of the implementation of ASC 606, the Company now capitalizes the incremental costs directly related to obtaining and fulfilling a contract (such as sales commissions and certain direct sales and marketing success based costs), if these costs are expected to be recovered. These costs are amortized over the period the services are transferred to the customer, which is estimated based on customer churn rates for various segments of the business. The Company includes only those incremental costs that would not have been incurred if the contracts had not been entered into:

	Short-term			Long-term
	(in thousands)
Balance at December 31, 2017	$	—		$	—
Adjustments resulting from adoption of ASC 606	43,408			40,040
Deferred customer acquisition costs incurred in the period	13,391			25,307
Amounts recognized as expense in the period	(38,192		)	—
Impact of foreign exchange rates	(142		)	13
Reclassification between short-term and long-term	23,279			(23,279		)
Balance at September 30, 2018	$	41,744		$	42,081

As of September 30, 2018, the Company has a total of $71.0 million in deferred assets relating to costs incurred to obtain or fulfill contracts in its web presence segment, consisting of $0.0 million of incremental, recoverable sales and marketing costs, and $71.0 million of recoverable, specific, success-based sales commissions. As of September 30, 2018, the Company has a total of $11.4 million deferred assets relating to costs incurred to obtain or fulfill contracts in its email marketing segment, consisting of $0.0 million of incremental, recoverable sales and marketing costs, and $11.4 million of recoverable, specific, success-based sales commissions. As of September 30, 2018, the Company has a total of $1.4 million deferred assets relating to costs incurred to obtain or fulfill contracts in its domain segment, consisting of $0.0 million of incremental, recoverable sales and marketing costs, and $1.4 million of recoverable, specific, success-based sales commissions. During the nine months ended September 30, 2018, the Company recognized total amortization costs related to the above items of $34.5 million, $3.4 million, and $0.3 million in its web presence, email marketing and domain segments, respectively.

Significant Judgments

The Company sells a number of third party cloud based services to enhance a subscriber’s overall website hosting experience. The Company exercises considerable judgment to determine if it is the principal or agent in each of these arrangements, and in some instances, has concluded that it is an agent of the third party and recognizes revenue at time of subscriber purchase in an amount that is net of the revenue share payable to the third party.

The Company exercises judgment to determine the standalone selling price for each distinct performance obligation. In instances where the standalone selling price is not directly observable, such as when the Company does not sell the product or service separately, the Company determines the standalone selling price using information that may include a competitive market assessment approach and other observable inputs. The Company typically has more than one standalone selling price for individual products and services.

Judgment is required to determine whether particular types of sales and marketing costs incurred, including commissions, are incremental and recoverable costs incurred to obtain and fulfill the customer contract. In addition, judgment is required to determine the life of the customer over which deferred customer acquisition costs are amortized.

Income Taxes

Income Taxes

Income taxes are accounted for in accordance with ASC 740, Accounting for Income Taxes, or ASC 740. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry-forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

ASC 740 clarifies the accounting for income taxes by prescribing a minimum recognition threshold that a tax position is required to meet before being recognized in the financial statements. The Company recognizes the effect of income tax positions only if those positions are more likely than not to be sustained. Recognized income tax positions are measured at the largest amount that is more likely than not to be realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company had unrecognized tax benefits at December 31, 2017 and September 30, 2018 of $1.1 million and $2.9 million, respectively.

The Company records interest related to unrecognized tax benefits in interest expense and penalties in operating expenses.

Stock-Based Compensation

Stock-Based Compensation

The Company may issue restricted stock units, restricted stock awards and stock options which vest upon the satisfaction of a performance condition and/or a service condition. The Company follows the provisions of ASC 718, Compensation—Stock Compensation, or ASC 718, which requires employee stock-based payments to be accounted for under the fair value method. Under this method, the Company is required to record compensation cost based on the estimated fair value for stock-based awards granted over the requisite service periods for the individual awards, which generally equals the vesting periods, net of estimated forfeitures. The Company uses the straight-line amortization method for recognizing stock-based compensation expense. In addition, for stock-based awards where vesting is dependent upon achieving certain performance goals, the Company estimates the likelihood of achieving the performance goals against established performance targets.

The Company estimates the fair value of employee stock options on the date of grant using the Black-Scholes option-pricing model, which requires the use of highly subjective estimates and assumptions. For restricted stock awards and restricted stock units granted, the Company estimates the fair value of each restricted stock award or restricted stock unit based on the closing trading price of its common stock on the date of grant.

Net Loss per Share

Net Loss per Share

The Company considered ASC 260-10, Earnings per Share, or ASC 260-10, which requires the presentation of both basic and diluted earnings per share in the consolidated statements of operations and comprehensive loss. The Company’s basic net loss per share is computed by dividing net loss by the weighted average number of shares of common stock outstanding for the period, and, if there are dilutive securities, diluted income per share is computed by including common stock equivalents which includes shares issuable upon the exercise of stock options, net of shares assumed to have been purchased with the proceeds, using the treasury stock method.

Recent Accounting Pronouncements

Recent Accounting Pronouncements - Recently Adopted

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), or ASU 2014-09, which supersedes nearly all existing revenue recognition guidance under U.S. GAAP. Since then, the FASB has also issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606), Principals versus Agent Considerations, ASU 2016-10, Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing, and ASU 2017-13, Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Amendments to SEC Paragraphs Pursuant to the Staff Announcement at the July 20, 2017 EITF Meeting and Rescission of Prior SEC Staff Announcements and Observer Comments, which further elaborate on the original ASU No. 2014-09. The core principle of these updates is to recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the entity expects to be entitled for those goods or services. ASU 2014-09 defines a five step process to achieve this core principle and, in doing so, more judgments and estimates may be required within the revenue recognition process than are required under previous U.S. GAAP. In July 2015, the FASB approved a one-year deferral of the effective date to January 1, 2018, with early adoption to be permitted as of the original effective date of January 1, 2017. Once this standard became effective, companies may use either of the following transition methods: (i) a full retrospective approach reflecting the application of the standard in each reporting period with the option to elect certain practical expedients, or (ii) a retrospective approach with the cumulative effect of initially adopting ASU 2014-09 recognized at the date of adoption (which includes additional footnote disclosures) (the "modified retrospective approach"). The Company adopted this guidance on January 1, 2018 using the modified retrospective approach. The new standard impacted the timing of when certain sales incentive payments, primarily to external parties, are charged to expense as these costs must now be deferred over the life of the related customer relationship, whereas previously these amounts were expensed as incurred. In addition, a small portion of the Company's revenue recognition was impacted by this new guidance. The impact to opening retained earnings as a result of the adoption of the new guidance was $59.4 million, which consists of an $83.4 million deferred asset relating to customer acquisition costs and a $6.1 million deferred asset for domain registration costs, partially offset by a $23.1 million liability for deferred revenue, net of a deferred tax liability of $7.0 million. The Company applied the new guidance to all revenue contracts and did not use any practical expedients. The adoption of Topic 606 impacted the results of operations and certain balance sheet accounts. The impact of applying Topic 606 on the results for reporting periods and balance sheet beginning after January 1, 2018 is presented under Topic 606, while prior amounts are not adjusted and continue to be reported in accordance with the Company’s historic accounting under Topic 605. The impact of applying Topic 606 as of September 30, 2018 is as follows:

	For the three months ended September 30, 2018 under topic 606			For the three months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of operations and comprehensive loss data	(in thousands)
Revenue	$	283,770		$	284,343		$	(573	)
Cost of revenue	128,945			128,583			362
Sales and marketing	63,831			63,816			15
	As of September, 2018 under topic 606			As of September 30, 2018 under topic 605			Increase (decrease)
Consolidated balance sheet data	(in thousands)
Prepaid commissions, current portion	$	41,744		$	—		$	41,744
Prepaid commissions, long-term	42,081			—			42,081
Deferred revenue, current	380,564			379,343			1,221
Deferred revenue, long-term	96,419			96,419			—
	For the three months ended September 30, 2018 under topic 606			For the three months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of cash flow data	(in thousands)
Net (loss) income	$	(6,335	)	$	(6,139	)	$	(196	)
Change in prepaid expenses and other assets	5,527			5,904			(377		)
Change in deferred revenue	(4,691		)	(4,118		)	573
Cash flows from operations	51,341			51,341			—
	For the nine months ended September 30, 2018 under topic 606			For the nine months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of operations and comprehensive loss data	(in thousands)
Revenue	$	862,896		$	864,117		$	(1,221	)
Cost of revenue	393,597			393,345			252
Sales and marketing	197,733			198,240			(507		)
	As of September, 2018 under topic 606			As of September 30, 2018 under topic 605			Increase (decrease)
Consolidated balance sheet data	(in thousands)
Prepaid commissions, current portion	$	41,744		$	—		$	41,744
Prepaid commissions, long-term	42,081			—			42,081
Deferred revenue, current	380,564			379,343			1,221
Deferred revenue, long-term	96,419			96,419			—
	For the nine months ended September 30, 2018 under topic 606			For the nine months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of cash flow data	(in thousands)
Net (loss) income	$	(8,236	)	$	(7,270	)	$	(966	)
Change in prepaid expenses and other assets	(3,033		)	(2,778		)	(255		)
Change in deferred revenue	3,502			4,723			1,221
Cash flows from operations	133,593			133,593			—

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities. This new standard enhances the reporting model for financial instruments to provide users of financial statements with more decision-useful information. This amendment is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. The adoption of this standard did not have a material impact on the Company's consolidated financial statements.

In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows: Restricted Cash. This new standard requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and restricted cash. This amendment is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. The adoption of this standard did not have a material impact on the Company's statement of cash flows.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows: Classification ofCertain Cash Receipts and Cash Payments. This new standard clarifies certain statement of cash flow presentation issues. This amendment is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. The adoption of this standard did not have a material impact on the Company's statement of cash flows.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other: Simplifying the Test for Goodwill Impairment. This new standard eliminates step two of the prior goodwill test, and instead requires that an entity perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. This amendment is effective for annual or interim goodwill impairment tests in fiscal years beginning after December 31, 2019, and should be applied on a prospective basis. The Company elected to early adopt the provisions of ASU 2017-04 effective in the fourth quarter of fiscal year 2017, which simplified the process of calculating the $12.1 million impairment to goodwill during the fourth quarter of fiscal year 2017.

In May 2017, the FASB issued ASU No. 2017-09, Compensation - Stock Compensation (Topic 718). This new standard provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. This amendment is effective for annual or interim periods in fiscal years beginning after December 15, 2017, and should be applied prospectively to an award modified on or after the adoption date. The Company adopted this guidance as of January 1, 2018 and will apply this guidance to any modifications, based on the new definition of a modification, for all periods beginning on or after January 1, 2018. During the three and nine months ended September 30, 2018, there were no modifications that would impact the Company's consolidated financial statements.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. This new guidance better aligns an entity's risk management activities and financial reporting for hedging relationships through changes to the designation and measurement guidance for qualifying hedging relationships and to the method of presenting hedge results. The amendments in this guidance require an entity to present the earnings effect of the hedging instrument in the same income statement line item in which the earnings effect of the hedged item is reported, to allow users to better understand the results and costs of an entity's hedging program. This new guidance is effective for fiscal years beginning after December 15, 2019 and early adoption is allowed. The amended presentation and disclosure guidance is required only prospectively, while the measurement guidance should be applied to hedges existing at the time of adoption through a one-time cumulative-effect adjustment to accumulated other comprehensive income with respect to the elimination of the separate measurement of ineffectiveness with a corresponding adjustment to the opening balance of the retained earnings. The Company adopted this guidance on June 1, 2018 using the modified retrospective approach. The adoption of the new guidance did not have a material impact on the Company's consolidated financial statements.

Recent Accounting Pronouncements - Recently Issued

In February 2016, the FASB issued ASU No. 2016-02, Leases. Since then, the FASB has also issued ASU No. 2018-10, Codification Improvements to Topic 842, Leases, which further clarifies ASU No. 2016-02 and corrects unintended application of guidance. The new standard establishes a right-of-use ("ROU") model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The new standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. A modified retrospective transition approach is required for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. The Company is currently evaluating the impact of its pending adoption of the new standard on its consolidated financial statements, but expects that the adoption will materially increase its assets and liabilities.

In October 2016, the FASB issued ASU No. 2016-16, Income Taxes: Intra-Entity Transfers ofAssets Other Than Inventory. This new standard improves the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. This amendment is effective for annual periods beginning after December 15, 2018, and early adoption is permitted. The Company does not believe the adoption of this ASU will have a material impact on its consolidated financial statements.

In July 2018, the FASB issued ASU No. 2018-07, Compensation - Stock Compensation (Topic 718). The new guidance expands the scope of Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees. The amendments in ASU No. 2018-07 specify that Topic 718 applies to all share-based payment transactions in which a grantor acquires goods or services to be used or consumed in a grantor's own operations by issuing share-based payment awards to a non-employee. The amendments also clarify that Topic 718 does not apply to share-based payments used to effectively provide (1) financing to the issuer or (2) awards granted in conjunction with selling goods or services to customers as part of a contract accounted for under Topic 606, Revenue from Contract with Customers. The new guidance is effective for public companies for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years and early adoption is permitted, provided the company has already adopted the guidance in Topic 606. A company should only remeasure liability-classified awards that have not been settled by the date of adoption and equity-classified awards for which a measurement date has not been established through a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. Upon transition, the company is required to measure these nonemployee awards at fair value as of the adoption date. The Company does not believe the adoption of this ASU will have a material impact on its consolidated financial statements.

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Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Summary of Estimated Useful Lives

Depreciation is computed using the straight-line method over the estimated useful lives of the related assets as follows: 

Building	Thirty-five years
Software	Two to three years
Computers and office equipment	Three years
Furniture and fixtures	Five years
Leasehold improvements	Shorter of useful life or remaining term of the lease

Contract with Customer, Asset and Liability

The Company includes only those incremental costs that would not have been incurred if the contracts had not been entered into:

	Short-term			Long-term
	(in thousands)
Balance at December 31, 2017	$	—		$	—
Adjustments resulting from adoption of ASC 606	43,408			40,040
Deferred customer acquisition costs incurred in the period	13,391			25,307
Amounts recognized as expense in the period	(38,192		)	—
Impact of foreign exchange rates	(142		)	13
Reclassification between short-term and long-term	23,279			(23,279		)
Balance at September 30, 2018	$	41,744		$	42,081

The following table provides a reconciliation of the Company's deferred revenue as of September 30, 2018:

	Short-term			Long-term
	(in thousands)
Balance at December 31, 2017	$	361,940		$	90,972
Effect of adoption of ASC 606 to balances at December 31, 2017	20,275			2,882
Recognition of the beginning deferred revenue into revenue, as a result of performance obligations satisfied	(331,939		)	—
Cash received in advance during the period	657,821			193,119
Recognition of cash received in the period into revenue, as a result of performance obligations satisfied	(518,087		)	—
Reclassification between short-term and long-term	190,554			(190,554		)
Balance at September 30, 2018	$	380,564		$	96,419

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction

These amounts are equivalent to the ending deferred revenue balance of $477.0 million, which includes both short and long-term amounts:

	Web presence		Email marketing		Domain		Total
	(in thousands)
Remaining performance obligation, short-term	$	265,984	$	55,055	$	59,525	$	380,564
Remaining performance obligation, long-term	81,805		—		14,614		96,419
Total	$	347,789	$	55,055	$	74,139	$	476,983

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

The impact of applying Topic 606 as of September 30, 2018 is as follows:

	For the three months ended September 30, 2018 under topic 606			For the three months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of operations and comprehensive loss data	(in thousands)
Revenue	$	283,770		$	284,343		$	(573	)
Cost of revenue	128,945			128,583			362
Sales and marketing	63,831			63,816			15
	As of September, 2018 under topic 606			As of September 30, 2018 under topic 605			Increase (decrease)
Consolidated balance sheet data	(in thousands)
Prepaid commissions, current portion	$	41,744		$	—		$	41,744
Prepaid commissions, long-term	42,081			—			42,081
Deferred revenue, current	380,564			379,343			1,221
Deferred revenue, long-term	96,419			96,419			—
	For the three months ended September 30, 2018 under topic 606			For the three months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of cash flow data	(in thousands)
Net (loss) income	$	(6,335	)	$	(6,139	)	$	(196	)
Change in prepaid expenses and other assets	5,527			5,904			(377		)
Change in deferred revenue	(4,691		)	(4,118		)	573
Cash flows from operations	51,341			51,341			—
	For the nine months ended September 30, 2018 under topic 606			For the nine months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of operations and comprehensive loss data	(in thousands)
Revenue	$	862,896		$	864,117		$	(1,221	)
Cost of revenue	393,597			393,345			252
Sales and marketing	197,733			198,240			(507		)
	As of September, 2018 under topic 606			As of September 30, 2018 under topic 605			Increase (decrease)
Consolidated balance sheet data	(in thousands)
Prepaid commissions, current portion	$	41,744		$	—		$	41,744
Prepaid commissions, long-term	42,081			—			42,081
Deferred revenue, current	380,564			379,343			1,221
Deferred revenue, long-term	96,419			96,419			—
	For the nine months ended September 30, 2018 under topic 606			For the nine months ended September 30, 2018 under topic 605			Increase (decrease)
Consolidated statement of cash flow data	(in thousands)
Net (loss) income	$	(8,236	)	$	(7,270	)	$	(966	)
Change in prepaid expenses and other assets	(3,033		)	(2,778		)	(255		)
Change in deferred revenue	3,502			4,723			1,221
Cash flows from operations	133,593			133,593			—

Summary of Calculation of Basic and Diluted Net Loss Per Share

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2018			2017			2018
	(unaudited) (in thousands, except share amounts and per share data)
Net loss attributable to Endurance International Group Holdings, Inc.	$	(40,264	)	$	(6,335	)	$	(114,781	)	$	(8,236	)
Net loss per share attributable to Endurance International Group Holdings, Inc.:
Basic net loss per share attributable to Endurance International Group Holdings, Inc.	$	(0.29	)	$	(0.04	)	$	(0.84	)	$	(0.06	)
Diluted net loss per share attributable to Endurance International Group Holdings, Inc.	$	(0.29	)	$	(0.04	)	$	(0.84	)	$	(0.06	)
Weighted-average common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:
Basic	137,793,609			143,107,122			136,688,115			141,946,574
Diluted	137,793,609			143,107,122			136,688,115			141,946,574

Summary of Weighted Average Potentially Dilutive Shares Excluded From Calculation of Diluted Loss Per Share

The following number of weighted average potentially dilutive shares were excluded from the calculation of diluted loss per share because the effect of including such potentially dilutive shares would have been anti-dilutive:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2018	2017	2018
	(unaudited)
Restricted stock awards and units	7,782,806	6,915,158	6,974,708	6,470,097
Options	10,593,596	8,362,719	10,947,661	8,644,464
Total	18,376,402	15,277,877	17,922,369	15,114,561

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Correction of Income Tax Expense - Fiscal Year 2018 (Tables)

9 Months Ended

Sep. 30, 2018

Accounting Changes and Error Corrections [Abstract]

Schedule of Error Corrections

The following table represents the impact of the revised deferred income tax provision on the impacted lines of the statement of cash flows for the periods shown (in thousands):

	Three Months Ended March 31, 2018									Six Months Ended June 30, 2018
	Originally Filed			Adjustment			Revised			Originally Filed			Adjustment			Revised
Net income (loss)	$	(7,088	)	$	4,560		$	(2,528	)	$	(9,057	)	$	7,156		$	(1,901	)
Deferred tax expense	492			(4,560		)	(4,068		)	2,672			(7,156		)	(4,484		)
Net cash provided by operating activities	52,360			—			52,360			82,252			—			82,252

The following table represents the impact of the income statement revision to the first and second quarters of 2018 due to the revised deferred income tax provision (in thousands, except per share data):

	Three Months Ended March 31, 2018									Three Months Ended June 30, 2018
	Originally Filed			Adjustment			Revised			Originally Filed			Adjustment			Revised
Loss before income taxes and equity earnings of unconsolidated subsidiaries	$	(4,444	)	$	—		$	(4,444	)	$	(344	)	$	—		$	(344	)
Income tax expense (benefit)	2,617			(4,560		)	(1,943		)	1,650			(2,596		)	(946		)
Loss before equity earnings of unconsolidated subsidiaries	(7,061		)	$	4,560		$	(2,501	)	(1,994		)	$	2,596		$	602
Equity (income) loss of unconsolidated subsidiaries	27			—			27			$	(25	)				(25		)
Net income (loss)	$	(7,088	)	$	4,560		$	(2,528	)	$	(1,969	)	$	2,596		$	627
Comprehensive income (loss)
Foreign currency translation	580			—			580			(2,425		)	—			(2,425		)
Unrealized (gain) loss on cash flow hedge, net of tax	1,041			—			1,041			144			—			144
Total comprehensive loss	$	(5,467	)	$	4,560		$	(907	)	$	(4,250	)	$	2,596		$	(1,654	)
Basic net income (loss) per share	$	(0.05	)	$	0.03		$	(0.02	)	$	(0.01	)	$	0.01		$0.00
Diluted net income (loss) per share	$	(0.05	)	$	0.03		$	(0.02	)	$	(0.01	)	$	0.01		$0.00
Weighted-average common shares used in computing net income (loss) per share
Basic	140,361,982			—			140,361,982			142,340,561			—			142,340,561
Diluted	140,361,982			—			140,361,982			142,340,561			2,361,441			144,702,002

	Six Months Ended June 30, 2018
	Originally Filed			Adjustment			Revised
Loss before income taxes and equity earnings of unconsolidated subsidiaries	$	(4,788	)	$	—		$	(4,788	)
Income tax expense (benefit)	4,267			(7,156		)	(2,889		)
Loss before equity earnings of unconsolidated subsidiaries	(9,055		)	7,156			(1,899		)
Equity (income) loss of unconsolidated subsidiaries	2			—			2
Net income (loss)	(9,057		)	7,156			$	(1,901	)
Comprehensive income (loss)
Foreign currency translation	(1,845		)	—			(1,845		)
Unrealized gain on cash flow hedge, net of tax	1,184			—			1,184
Total comprehensive loss	(9,718		)	7,156			$	(2,562	)
Basic net income (loss) per share	$	(0.06	)	$	0.05		$	(0.01	)
Diluted net income (loss) per share	$	(0.06	)	$	0.05		$	(0.01	)
Weighted-average common shares used in computing net income (loss) per share
Basic	141,356,567			—			141,356,567
Diluted	141,356,567			—			141,356,567

The following table represents the impact of the revised deferred income tax provision on the impacted balance sheet accounts as of the dates shown (in thousands):

	March 31, 2018									June 30, 2018
	Originally Filed			Adjustment			Revised			Originally Filed			Adjustment			Revised
Deferred tax liability	$	27,679		$	(4,560	)	$	23,119		$	29,897		$	(7,156	)	$	22,741
Total liabilities	2,533,619			(4,560		)	2,529,059			2,490,106			(7,156		)	2,482,950
Accumulated deficit	(795,206		)	4,560			(790,646		)	(797,175		)	7,156			(790,019		)
Total stockholders' equity	144,189			4,560			148,749			147,759			7,156			154,915
Total liabilities and stockholders' equity	2,677,808			—			2,677,808			2,637,865			—			2,637,865

The following table reflects the differences between the amounts as reported and the amounts as revised for gross profit, net loss and adjusted EBITDA for the web presence and domain segments for the three and nine months ended September 30, 2017:

	Three Months Ended September 30, 2017
	Web presence						Domain
	(in thousands)
	(as reported)			(as revised)			(as reported)			(as revised)
Gross profit	$	75,097		$	77,032		$	(4,026	)	$	(5,961	)
Net loss	$	(22,416	)	$	(20,403	)	$	(20,050	)	$	(22,063	)
Adjusted EBITDA	$	41,297		$	43,232		$	1,325		$	(610	)
	Nine Months Ended September 30, 2017
	Web presence						Domain
	(in thousands)
	(as reported)			(as revised)			(as reported)			(as revised)
Gross profit	$	224,300		$	229,186		$	15,939		$	11,053
Net loss	$	(73,346	)	$	(67,226	)	$	(25,885	)	$	(32,005	)
Adjusted EBITDA	$	115,060		$	119,946		$	5,999		$	1,113

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Property and Equipment and Capital Lease Obligations (Tables)

9 Months Ended

Sep. 30, 2018

Property, Plant and Equipment [Abstract]

Components of Property and Equipment

Components of property and equipment consisted of the following:

	December 31, 2017			September 30, 2018
	(in thousands)
Land	$	790		$	790
Building	5,037			7,294
Software	82,618			88,376
Computers and office equipment	153,273			158,188
Furniture and fixtures	18,825			19,259
Leasehold improvements	22,260			19,672
Construction in process	3,800			2,215
Property and equipment—at cost	286,603			295,794
Less accumulated depreciation	(191,151		)	(216,479		)
Property and equipment—net	$	95,452		$	79,315

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Basis of Fair Value Measurements

Basis of Fair Value Measurements

	Balance		Quoted Prices in Active Markets for Identical Items (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Balance at December 31, 2017
Financial assets:
Interest rate cap (included in other assets)	$	452	—		$	452	$	—
Total financial assets	$	452	$	—	$	452	$	—
Balance at September 30, 2018
Financial assets:
Interest rate caps (included in other assets)	$	6,863	—		$	6,863	$	—
Total financial assets	$	6,863	$	—	$	6,863	$	—

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Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Goodwill Balances

The following table summarizes the changes in the Company’s goodwill balances from December 31, 2017 to September 30, 2018:

	Web Presence			Email Marketing		Domain		Total
	(in thousands)
Goodwill balance at December 31, 2017	$	1,216,419		$	604,305	$	29,858	$	1,850,582
Foreign translation impact	(1,318		)	—		—		(1,318		)
Goodwill balance at September 30, 2018	$	1,215,101		$	604,305	$	29,858	$	1,849,264

Summary of Other Intangible Assets

At December 31, 2017, other intangible assets consisted of the following:

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted Average Useful Life
	(dollars in thousands)
Developed technology	$	285,911	$	149,514	$	136,397	7 years
Subscriber relationships	659,732		431,938		227,794		7 years
Trade-names	134,054		73,019		61,035		8 years
Intellectual property	34,313		27,336		6,977		5 years
Domain names available for sale	30,458		7,221		23,237		Indefinite
Total December 31, 2017	$	1,144,468	$	689,028	$	455,440

At September 30, 2018, other intangible assets consisted of the following:

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted Average Useful Life
	(dollars in thousands)
Developed technology	$	284,312	$	173,203	$	111,109	7 years
Subscriber relationships	659,376		472,625		186,751		7 years
Trade-names	134,046		81,740		52,306		8 years
Intellectual property	34,306		28,566		5,740		5 years
Domain names available for sale	30,855		9,091		21,764		Indefinite
Total September 30, 2018	$	1,142,895	$	765,225	$	377,670

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Notes Payable (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

At December 31, 2017 and September 30, 2018, notes payable, net of original issuance discounts (sometimes referred to as "OID") and deferred financing costs, consisted of the following:

	At December 31, 2017		At September 30, 2018
	(in thousands)
2018 First Lien Term Loan	$	—	$	1,493,131
2017 First Lien Term Loan	1,563,197		—
Notes	329,048		330,911
Revolving credit facilities	—		—
Total notes payable	1,892,245		1,824,042
Current portion of notes payable	33,945		31,606
Notes payable - long term	$	1,858,300	$	1,792,436

As of December 31, 2017 and September 30, 2018, the Senior Notes had an outstanding balance of:

	At December 31, 2017			At September 30, 2018
	(in thousands)
Senior Notes	$	350,000		$	350,000
Unamortized deferred financing costs	(15,280		)	(13,921		)
Unamortized original issuance discount	(5,672		)	(5,168		)
Net Senior Notes	329,048			330,911
Current portion of Senior Notes	—			—
Senior Notes - long term	$	329,048		$	330,911

As of September 30, 2018, the 2018 Term Loan had an outstanding balance of:

		At September 30, 2018
	(in thousands)
2018 First Lien Term Loan		$	1,530,002
Unamortized deferred financing costs		(19,594		)
Unamortized original issue discount		(17,277		)
Net 2018 First Lien Term Loan		1,493,131
Current portion of 2018 First Lien Term Loan		31,606
2018 First Lien Term Loan - long term		$	1,461,525

As of December 31, 2017 and September 30, 2018, the 2017 Term Loan had an outstanding balance of:

	At December 31, 2017			At September 30, 2018
	(in thousands)
2017 First Lien Term Loan	$	1,605,792		$	—
Unamortized deferred financing costs	(22,456		)	—
Unamortized original issue discount	(20,139		)	—
Net 2017 First Lien Term Loan	1,563,197			—
Current portion of 2017 First Lien Term Loan	33,945			—
2017 First Lien Term Loan - long term	$	1,529,252		$	—

Summary of Future Debt Maturities

The maturity of the notes payable at September 30, 2018 is as follows:

Amounts maturing in:	(in thousands)
(Remainder of) 2018	$	7,902
2019	31,606
2020	31,606
2021	31,606
2022	31,606
Thereafter	1,745,676
Total	$	1,880,002

Summary of Interest Rates and Interest Expense

The following table provides a summary of interest rates and interest expense for the three and nine months ended September 30, 2017 and 2018:

	Three Months Ended September 30, 2017			Three Months Ended September 30, 2018			Nine Months Ended September 30, 2017			Nine Months Ended September 30, 2018
	(percentage per annum)
Interest rate—LIBOR	5.14%-5.32%			5.81%-6.07%			5.14%-6.68%			5.46%-6.32%
Interest rate—reference	*			*			*			*
Interest rate—Senior Notes	10.875		%	10.875		%	10.875		%	10.875		%
Non-refundable fee—unused facility	0.50		%	0.50		%	0.50		%	0.50		%
	(dollars in thousands)
Interest expense and service fees	$	32,551		$	34,469		$	105,371		$	101,575
Loss on extinguishment of debt	—			—			992			331
Deferred financing fees immediately expensed	—			—			5,487			1,228
Amortization of deferred financing fees	1,873			1,722			5,403			4,708
Amortization of original issue discounts	1,059			1,083			2,791			3,209
Amortization of net present value of deferred consideration	127			60			504			311
Other interest expense	238			193			474			561
Total interest expense	$	35,848		$	37,527		$	121,022		$	111,923

* The Company did not have debt bearing interest based on the alternate base rate for the three and nine months ended September 30, 2017 and 2018.

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Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Summary of Changes in Stockholders' Equity

The following table presents the changes in total stockholders’ equity during the nine months ended September 30, 2018:

	Total Stockholders’ Equity
	(in thousands)
Balance at December 31, 2017	$	83,005
Stock-based compensation	21,932
Reclassification of stock-compensation liability award	250
Stock option exercises	756
Foreign currency translation adjustment	(2,489		)
Unrealized gain on derivative	1,996
Adjustment to beginning retained earnings resulting from adoption of ASC 606, net of tax impact of $7.0 million	59,384
Net loss attributable to Endurance International Group Holdings, Inc.	(8,236		)
Balance at September 30, 2018	$	156,598

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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Total Stock-Based Compensation Expense

The following table presents total stock-based compensation expense recorded in the consolidated statement of operations and comprehensive loss for all awards granted under the Company’s 2013 Plan and 2011 Plan:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2018		2017		2018
	(in thousands)
Cost of revenue	$	1,553	$	828	$	4,720	$	3,223
Sales and marketing	2,263		1,478		7,027		4,009
Engineering and development	1,807		1,237		4,707		3,519
General and administrative	13,956		4,007		32,295		11,181
Total stock-based compensation expense	$	19,579	$	7,550	$	48,749	$	21,932

Summary of Stock Options

The following table provides a summary of the Company’s stock options as of September 30, 2018 and the stock option activity for all stock options granted under the 2013 Plan during the nine months ended September 30, 2018:

	Stock Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value(3) (in thousands)
Outstanding at December 31, 2017	8,575,150		$	12.30
Granted	611,010		$	7.50
Exercised	(19,049	)	$	8.09
Forfeited	(304,382	)	$	12.79
Expired	(1,516,912	)	$	13.56
Outstanding at September 30, 2018	7,345,817		$	11.63	5.1	$	1,600
Exercisable at September 30, 2018	5,475,357		$	12.39	3.9	$	283
Expected to vest after September 30, 2018 (1)	1,870,460		$	9.39	8.4	$	1,317
Exercisable as of September 30, 2018 and expected to vest (2)	7,345,817		$	11.63	5.1	$	1,600

⁽¹⁾  This represents the number of unvested options outstanding as of September 30, 2018 that are expected to vest in the future.

⁽²⁾  This represents the number of vested options as of September 30, 2018 plus the number of unvested options outstanding as of September 30, 2018 that are expected to vest in the future.

⁽³⁾  The aggregate intrinsic value was calculated based on the positive difference, if any, between the estimated fair value of the Company’s common stock on September 30, 2018 of $8.80 per share, or the date of exercise, as appropriate, and the exercise price of the underlying options.

The following table provides a summary of the Company’s stock options as of September 30, 2018 and the stock option activity for all stock options granted under the 2011 Plan during the nine months ended September 30, 2018:

	Stock Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (In Years)	Aggregate Intrinsic Value(3) (in thousands)
Outstanding at December 31, 2017	888,260		$	8.75
Granted	—		$	—
Exercised	(92,229	)	$	6.53
Forfeited	(10,256	)	$	10.47
Expired	(38,652	)	$	9.21
Outstanding at September 30, 2018	747,123		$	8.98	3.7	$	546
Exercisable at September 30, 2018	563,823		$	8.76	3.5	$	499
Expected to vest after September 30, 2018 (1)	183,300		$	9.65	4.2	$	47
Exercisable as of September 30, 2018 and expected to vest (2)	747,123		$	8.98	3.7	$	546

⁽¹⁾  This represents the number of unvested options outstanding as of September 30, 2018 that are expected to vest in the future.

⁽²⁾  This represents the number of vested options as of September 30, 2018 plus the number of unvested options outstanding as of September 30, 2018 that are expected to vest in the future.

⁽³⁾  The aggregate intrinsic value was calculated based on the positive difference, if any, between the estimated fair value of the Company’s common stock on September 30, 2018 of $8.80 per share, or the date of exercise, as appropriate, and the exercise price of the underlying options.

Summary of Restricted Stock Awards and Restricted Stock Units

The following table provides a summary of the Company’s restricted stock unit activity for the 2011 Plan during the nine months ended September 30, 2018:

	Restricted Stock Units		Weighted Average Grant Date Fair Value
Non-vested at December 31, 2017	1,541,141		$	8.30
Granted	41,379		$	7.25
Vested	(516,600	)	$	8.38
Canceled	(92,030	)	$	8.53
Non-vested at September 30, 2018	973,890		$	8.20

The following table provides a summary of the Company’s restricted stock unit activity for the 2013 Plan during the nine months ended September 30, 2018:

	Restricted Stock Units		Weighted Average Grant Date Fair Value
Non-vested at December 31, 2017	3,004,137		$	7.93
Granted	3,846,567		$	7.55
Vested	(1,185,704	)	$	9.08
Canceled	(394,763	)	$	7.78
Non-vested at September 30, 2018	5,270,237		$	7.67

The following table provides a summary of the Company’s restricted stock award activity for the 2013 Plan during the nine months ended September 30, 2018:

	Restricted Stock Awards		Weighted Average Grant Date Fair Value
Non-vested at December 31, 2017	3,432,946		$	13.79
Granted	—		$	—
Vested	(819,886	)	$	12.29
Canceled	(2,134,075	)	$	14.85
Non-vested at September 30, 2018	478,985		$	11.62

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Accumulated Other Comprehensive Income (Tables)

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income

The following table presents the components of accumulated other comprehensive income (loss):

	Foreign Currency Translation Adjustments			Unrealized Gains (Losses) on Cash Flow Hedges			Total
	(in thousands)
Balance at December 31, 2017	$	696		$	(1,237	)	$	(541	)
Other comprehensive income (loss)	(2,489		)	1,996			(493		)
Balance at September 30, 2018	$	(1,793	)	$	759		$	(1,034	)

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Revenue (Tables)

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table presents disaggregated revenues by category for the three and nine months ended September 30, 2018:

	Three Months Ended September 30, 2018
	Web presence		Email marketing		Domain		Total
	(in thousands)
Subscriber revenue
Direct revenue from subscribers	$	138,869	$	100,816	$	12,911	$	252,596
Professional services	3,387		299		103		3,789
Reseller revenue	5,241		855		12,585		18,681
Total subscriber revenue	$	147,497	$	101,970	$	25,599	$	275,066
Non-subscriber revenue
MDF	$	2,199	$	141	$	252	$	2,592
Premium domains	3		—		5,067		5,070
Domain parking	172		—		870		1,042
Total non-subscriber revenue	$	2,374	$	141	$	6,189	$	8,704
Total revenue:	$	149,871	$	102,111	$	31,788	$	283,770
	Nine Months Ended September 30, 2018
	Web presence		Email marketing		Domain		Total
	(in thousands)
Subscriber revenue
Direct revenue from subscribers	$	424,321	$	302,583	$	39,185	$	766,089
Professional services	10,091		1,045		300		11,436
Reseller revenue	16,487		2,620		39,136		58,243
Total subscriber revenue	$	450,899	$	306,248	$	78,621	$	835,768
Non-subscriber revenue
MDF	$	6,012	$	464	$	473	$	6,949
Premium domains	70		—		15,823		15,893
Domain parking	622		—		3,664		4,286
Total non-subscriber revenue	$	6,704	$	464	$	19,960	$	27,128
Total revenue:	$	457,603	$	306,712	$	98,581	$	862,896

Revenue, classified by the major geographic areas in which the Company’s customers are located, was as follows for the three and nine months ended September 30, 2018:

	Three Months Ended September 30, 2018
	Web presence		Email marketing		Domain		Total
	(in thousands)
Domestic	$	100,065	$	93,992	$	12,509	$	206,566
International	49,806		8,119		19,279		77,204
Total	$	149,871	$	102,111	$	31,788	$	283,770
	Nine Months Ended September 30, 2018
	Web presence		Email marketing		Domain		Total
	(in thousands)
Domestic	$	306,724	$	281,717	$	38,525	$	626,966
International	150,879		24,995		60,056		235,930
Total	$	457,603	$	306,712	$	98,581	$	862,896

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Severance and Other Exit Costs (Tables)

9 Months Ended

Sep. 30, 2018

Restructuring and Related Activities [Abstract]

Summary of Aggregate Activity Related to Company's Facilities Exit Costs Accrual and Severance Accrual

The following table provides a summary of the aggregate activity for the nine months ended September 30, 2018 related to the Company’s combined restructuring plans' facilities exit accrual:

	Facilities
	(in thousands)
	Total
Balance at December 31, 2017	$	6,005
Facility adjustments	43
Sublease income received	322
Cash paid	(2,080		)
Balance at September 30, 2018	$	4,290

The following table provides a summary of the aggregate activity for the nine months ended September 30, 2018 related to the Company’s combined restructuring plans' severance accrual:

	Employee  Severance
	(in thousands)
	Total
Balance at December 31, 2017	$	3,668
Severance charges	2,978
Cash paid	(5,646		)
Balance at September 30, 2018	$	1,000

Summary of Total Restructuring Charges Recorded in the Consolidated Statements of Operations and Comprehensive Loss

The following table presents restructuring charges recorded in the consolidated statements of operations and comprehensive loss for the periods presented:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2017		2018		2017		2018
	(in thousands)
Cost of revenue	$	449	$	37	$	3,892	$	1,443
Sales and marketing	1,011		17		3,260		133
Engineering and development	271		33		1,349		389
General and administrative	2,758		110		6,083		1,056
Total restructuring charges	$	4,489	$	197	$	14,584	$	3,021

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Related Party Transactions (Tables)

9 Months Ended

Sep. 30, 2018

Related Party Transactions [Abstract]

Summary of Related Party Transactions

The following table presents the amounts of related party transactions recorded in the consolidated statements of operations and comprehensive loss for the periods presented relating to services provided by Tregaron and its affiliates under these agreements:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2018		2017		2018
	(in thousands)
Cost of revenue	$	3,100	$	3,330	$	9,100	$	10,555
Sales and marketing	500		160		1,000		605
Engineering and development	200		290		850		960
General and administrative	50		20		150		65
Total related party transaction expense, net	$	3,850	$	3,800	$	11,100	$	12,185

The following table presents the amounts of related party transactions recorded in the consolidated statements of operations and comprehensive loss for the periods presented relating to services provided by IBS and its affiliates under these agreements:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2018			2017			2018
	(in thousands)
Revenue	$	(1,050	)	$	(1,430	)	$	(2,150	)	$	(4,075	)
Revenue (contra)	1,850			1,800			4,050			6,140
Total related party transaction impact to revenue	$	800		$	370		$	1,900		$	2,065
Cost of revenue	150			170			350			490
Total related party transaction expense, net	$	950		$	540		$	2,250		$	2,555

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Segment Information (Tables)

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

The following tables contain financial information for each reportable segment for the three and nine months ended September 30, 2017 and 2018:

	Three Months Ended September 30, 2017
	Web presence			Email marketing		Domain			Total
	(in thousands)
	(as revised)
Revenue(1)	$	159,530		$	101,526	$	34,166		$	295,222
Gross profit	$	77,032		$	65,286	$	(5,961	)	$	136,357
Net (loss) income	$	(20,403	)	$	2,202	$	(22,063	)	$	(40,264	)
Interest expense, net(2)	14,686			20,514		445			35,645
Income tax expense (benefit)	798			1,323		861			2,982
Depreciation	9,399			3,233		939			13,571
Amortization of other intangible assets	14,884			18,770		1,693			35,347
Stock-based compensation	15,510			1,668		2,402			19,580
Restructuring expenses	3,468			682		339			4,489
(Gain) loss of unconsolidated entities	(33		)	—		—			(33		)
Impairment of other long-lived assets	600			—		13,848			14,448
SEC investigations reserve	4,323			2,751		926			8,000
Adjusted EBITDA	$	43,232		$	51,143	$	(610	)	$	93,765
	Three Months Ended September 30, 2018
	Web presence			Email marketing		Domain			Total
	(in thousands)
Revenue(1)	$	149,871		$	102,111	$	31,788		$	283,770
Gross profit	$	75,074		$	71,356	$	8,395		$	154,825
Net (loss) income	$	(7,565	)	$	6,596	$	(5,366	)	$	(6,335	)
Interest expense, net(2)	18,132			17,128		1,978			37,238
Income tax expense (benefit)	6,136			4,179		1,400			11,715
Depreciation	8,401			2,538		950			11,889
Amortization of other intangible assets	11,941			13,384		852			26,177
Stock-based compensation	1,569			4,472		1,509			7,550

Restructuring expenses	54			141			2			197
Shareholder litigation reserve	(768		)	—			(167		)	(935		)
Adjusted EBITDA	$	37,900		$	48,438		$	1,158		$	87,496
	Nine Months Ended September 30, 2017
	Web presence			Email marketing			Domain			Total
	(in thousands)
	(as revised)
Revenue(1)	$	483,661		$	298,401		$	100,555		$	882,617
Gross profit	$	229,186		$	188,181		$	11,053		$	428,420
Net (loss) income	$	(67,226	)	$	(8,026	)	$	(32,005	)	$	(107,257	)
Interest expense, net(2)	50,877			68,212			1,427			120,516
Income tax expense (benefit)	12,645			(4,821		)	3,560			11,384
Depreciation	27,401			10,632			2,700			40,733
Amortization of other intangible assets	44,431			55,697			4,426			104,554
Stock-based compensation	38,023			5,392			5,334			48,749
Restructuring expenses	8,944			4,743			897			14,584
Transaction expenses and charges	—			773			—			773
(Gain) loss of unconsolidated entities	(72		)	—			—			(72		)
Impairment of other long-lived assets	600			—			13,848			14,448
SEC investigations reserve	4,323			2,751			926			8,000
Shareholder litigation reserve	—			—			—			—
Adjusted EBITDA	$	119,946		$	135,353		$	1,113		$	256,412
	Nine Months Ended September 30, 2018
	Web presence			Email marketing			Domain			Total
	(in thousands)
Revenue(1)	$	457,603		$	306,712		$	98,581		$	862,896
Gross profit	$	225,149		$	214,909		$	29,241		$	469,299
Net (loss) income	$	(20,549	)	$	22,350		$	(10,037	)	$	(8,236	)
Interest expense, net(2)	53,503			50,866			6,834			111,203
Income tax expense (benefit)	960			8,009			(143		)	8,826
Depreciation	24,769			9,090			2,894			36,753
Amortization of other intangible assets	35,812			39,716			2,362			77,890
Stock-based compensation	12,066			7,168			2,698			21,932
Restructuring expenses	1,654			723			644			3,021
(Gain) loss of unconsolidated entities	2			—			—			2
Shareholder litigation reserve	4,780			1,500			1,045			7,325
Adjusted EBITDA	$	112,997		$	139,422		$	6,297		$	258,716

⁽¹⁾  Revenue excludes intercompany transactions relating to domain sales and domain services from the domain segment to the web presence segment of $2.5 million and $8.1 million, respectively, for the three and nine months ended September 30, 2017, and $2.5 million and $7.6 million, respectively, for the three and nine months ended September 30, 2018.

⁽²⁾  Interest expense includes impact of amortization of deferred financing costs, original issuance discounts and interest income.

Schedule of Error Corrections

The following table represents the impact of the revised deferred income tax provision on the impacted lines of the statement of cash flows for the periods shown (in thousands):

	Three Months Ended March 31, 2018									Six Months Ended June 30, 2018
	Originally Filed			Adjustment			Revised			Originally Filed			Adjustment			Revised
Net income (loss)	$	(7,088	)	$	4,560		$	(2,528	)	$	(9,057	)	$	7,156		$	(1,901	)
Deferred tax expense	492			(4,560		)	(4,068		)	2,672			(7,156		)	(4,484		)
Net cash provided by operating activities	52,360			—			52,360			82,252			—			82,252

The following table represents the impact of the income statement revision to the first and second quarters of 2018 due to the revised deferred income tax provision (in thousands, except per share data):

	Three Months Ended March 31, 2018									Three Months Ended June 30, 2018
	Originally Filed			Adjustment			Revised			Originally Filed			Adjustment			Revised
Loss before income taxes and equity earnings of unconsolidated subsidiaries	$	(4,444	)	$	—		$	(4,444	)	$	(344	)	$	—		$	(344	)
Income tax expense (benefit)	2,617			(4,560		)	(1,943		)	1,650			(2,596		)	(946		)
Loss before equity earnings of unconsolidated subsidiaries	(7,061		)	$	4,560		$	(2,501	)	(1,994		)	$	2,596		$	602
Equity (income) loss of unconsolidated subsidiaries	27			—			27			$	(25	)				(25		)
Net income (loss)	$	(7,088	)	$	4,560		$	(2,528	)	$	(1,969	)	$	2,596		$	627
Comprehensive income (loss)
Foreign currency translation	580			—			580			(2,425		)	—			(2,425		)
Unrealized (gain) loss on cash flow hedge, net of tax	1,041			—			1,041			144			—			144
Total comprehensive loss	$	(5,467	)	$	4,560		$	(907	)	$	(4,250	)	$	2,596		$	(1,654	)
Basic net income (loss) per share	$	(0.05	)	$	0.03		$	(0.02	)	$	(0.01	)	$	0.01		$0.00
Diluted net income (loss) per share	$	(0.05	)	$	0.03		$	(0.02	)	$	(0.01	)	$	0.01		$0.00
Weighted-average common shares used in computing net income (loss) per share
Basic	140,361,982			—			140,361,982			142,340,561			—			142,340,561
Diluted	140,361,982			—			140,361,982			142,340,561			2,361,441			144,702,002

	Six Months Ended June 30, 2018
	Originally Filed			Adjustment			Revised
Loss before income taxes and equity earnings of unconsolidated subsidiaries	$	(4,788	)	$	—		$	(4,788	)
Income tax expense (benefit)	4,267			(7,156		)	(2,889		)
Loss before equity earnings of unconsolidated subsidiaries	(9,055		)	7,156			(1,899		)
Equity (income) loss of unconsolidated subsidiaries	2			—			2
Net income (loss)	(9,057		)	7,156			$	(1,901	)
Comprehensive income (loss)
Foreign currency translation	(1,845		)	—			(1,845		)
Unrealized gain on cash flow hedge, net of tax	1,184			—			1,184
Total comprehensive loss	(9,718		)	7,156			$	(2,562	)
Basic net income (loss) per share	$	(0.06	)	$	0.05		$	(0.01	)
Diluted net income (loss) per share	$	(0.06	)	$	0.05		$	(0.01	)
Weighted-average common shares used in computing net income (loss) per share
Basic	141,356,567			—			141,356,567
Diluted	141,356,567			—			141,356,567

The following table represents the impact of the revised deferred income tax provision on the impacted balance sheet accounts as of the dates shown (in thousands):

	March 31, 2018									June 30, 2018
	Originally Filed			Adjustment			Revised			Originally Filed			Adjustment			Revised
Deferred tax liability	$	27,679		$	(4,560	)	$	23,119		$	29,897		$	(7,156	)	$	22,741
Total liabilities	2,533,619			(4,560		)	2,529,059			2,490,106			(7,156		)	2,482,950
Accumulated deficit	(795,206		)	4,560			(790,646		)	(797,175		)	7,156			(790,019		)
Total stockholders' equity	144,189			4,560			148,749			147,759			7,156			154,915
Total liabilities and stockholders' equity	2,677,808			—			2,677,808			2,637,865			—			2,637,865

The following table reflects the differences between the amounts as reported and the amounts as revised for gross profit, net loss and adjusted EBITDA for the web presence and domain segments for the three and nine months ended September 30, 2017:

	Three Months Ended September 30, 2017
	Web presence						Domain
	(in thousands)
	(as reported)			(as revised)			(as reported)			(as revised)
Gross profit	$	75,097		$	77,032		$	(4,026	)	$	(5,961	)
Net loss	$	(22,416	)	$	(20,403	)	$	(20,050	)	$	(22,063	)
Adjusted EBITDA	$	41,297		$	43,232		$	1,325		$	(610	)
	Nine Months Ended September 30, 2017
	Web presence						Domain
	(in thousands)
	(as reported)			(as revised)			(as reported)			(as revised)
Gross profit	$	224,300		$	229,186		$	15,939		$	11,053
Net loss	$	(73,346	)	$	(67,226	)	$	(25,885	)	$	(32,005	)
Adjusted EBITDA	$	115,060		$	119,946		$	5,999		$	1,113

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Supplemental Guarantor Financial Information (Tables)

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Condensed Financial Statements

The following tables present supplemental condensed consolidating balance sheet information of the Company (“Parent”), the Issuer, the Subsidiary Guarantors and the Non-Guarantor Subsidiaries as of December 31, 2017 and September 30, 2018, supplemental condensed consolidating results of operations for the three and nine months ended September 30, 2017 and 2018, and cash flow information for the nine months ended September 30, 2017 and 2018:

Condensed Consolidating Balance Sheets

December 31, 2017

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Assets:
Current assets:
Cash and cash equivalents	$	92		$	2		$	54,473		$	11,926		$	—		$	66,493
Restricted cash	—			—			2,472			153			—			2,625
Accounts receivable	—			—			12,386			3,559			—			15,945
Prepaid domain name registry fees	—			—			28,291			25,514			—			53,805
Prepaid expenses & other current assets	(12		)	86			20,062			9,191			—			29,327
Total current assets	80			88			117,684			50,343			—			168,195
Intercompany receivables, net	33,637			606,834			(498,213		)	(142,258		)	—			—
Property and equipment, net	—			—			81,693			13,759			—			95,452
Goodwill	—			—			1,673,851			176,731			—			1,850,582
Other intangible assets, net	—			—			450,778			4,662			—			455,440
Investment in subsidiaries	49,288			1,355,013			37,200			—			(1,441,501		)	—
Other assets	—			3,639			21,373			6,405			—			31,417
Total assets	$	83,005		$	1,965,574		$	1,884,366		$	109,642		$	(1,441,501	)	$	2,601,086
Liabilities and stockholders' equity:
Current liabilities:
Accounts payable	$	—		$	—		$	9,532		$	1,526		$	—		$	11,058
Accrued expenses and other current liabilities	—			24,509			75,819			8,151			—			108,479
Deferred revenue	—			—			309,395			52,545			—			361,940
Current portion of notes payable	—			33,945			—			—			—			33,945
Current portion of capital lease obligations	—			—			7,630			—			—			7,630
Deferred consideration, short-term	—			—			4,365			—			—			4,365
Total current liabilities	—			58,454			406,741			62,222			—			527,417
Deferred revenue, long-term	—			—			81,199			9,773			—			90,972
Notes payable	—			1,858,300			—			—			—			1,858,300
Capital lease obligations	—			—			7,719			—			—			7,719
Deferred consideration	—			—			3,551			—			—			3,551
Other long-term liabilities	—			(468		)	30,143			447			—			30,122
Total liabilities	—			1,916,286			529,353			72,442			—			2,518,081
Equity	83,005			49,288			1,355,013			37,200			(1,441,501		)	83,005
Total liabilities and stockholders' equity	$	83,005		$	1,965,574		$	1,884,366		$	109,642		$	(1,441,501	)	$	2,601,086

Condensed Consolidating Balance Sheets

September 30, 2018

(in thousands)

	Parent		Issuer		Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Assets:
Current assets:
Cash and cash equivalents	$	207	$	2	$	59,890		$	29,575		$	—		$	89,674
Restricted cash	—		—		1,731			101			—			1,832
Accounts receivable	—		—		11,906			2,199			—			14,105
Prepaid domain name registry fees	—		—		32,729			24,385			—			57,114
Prepaid commissions	—		—		41,085			659			—			41,744
Prepaid expenses & other current assets	—		174		18,361			8,566			—			27,101
Total current assets	207		176		165,702			65,485			—			231,570
Intercompany receivables, net	34,278		441,001		(354,298		)	(120,981		)	—			—
Property and equipment, net	—		—		66,772			12,543			—			79,315
Goodwill	—		—		1,673,851			175,413			—			1,849,264
Other intangible assets, net	—		—		376,441			1,229			—			377,670
Investment in subsidiaries	122,114		1,510,592		74,478			—			(1,707,184		)	—
Prepaid commissions, net of current portion	—		—		41,346			735			—			42,081
Other assets	—		9,742		22,351			6,410			—			38,503
Total assets	$	156,599	$	1,961,511	$	2,066,643		$	140,834		$	(1,707,184	)	$	2,618,403
Liabilities and stockholders' equity:
Current liabilities:
Accounts payable	$	—	$	—	$	10,239		$	573		$	—		$	10,812
Accrued expenses and other current liabilities	—		15,197		69,493			4,376			—			89,066
Deferred revenue	—		—		330,178			50,386			—			380,564
Current portion of notes payable	—		31,606		—			—			—			31,606
Current portion of capital lease obligations	—		—		7,595			—			—			7,595
Deferred consideration, short-term	—		—		2,386			—			—			2,386
Total current liabilities	—		46,803		419,891			55,335			—			522,029
Deferred revenue, long-term	—		—		86,133			10,286			—			96,419
Notes payable	—		1,792,436		—			—			—			1,792,436
Capital lease obligations	—		—		2,067			—			—			2,067
Deferred consideration	—		—		1,342			—			—			1,342
Other long-term liabilities	—		158		46,618			736			—			47,512
Total liabilities	—		1,839,397		556,051			66,357			—			2,461,805
Equity	156,599		122,114		1,510,592			74,477			(1,707,184		)	156,598
Total liabilities and stockholders' equity	$	156,599	$	1,961,511	$	2,066,643		$	140,834		$	(1,707,184	)	$	2,618,403

Condensed Consolidating Statements of Operations and Comprehensive Income (Loss)

Three Months Ended September 30, 2017

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenue	$	—		$	—		$	266,985		$	30,019		$	(1,782	)	$	295,222
Cost of revenue	—			—			139,044			21,155			(1,334		)	158,865
Gross profit	—			—			127,941			8,864			(448		)	136,357
Operating expense:
Sales and marketing	—			—			61,376			4,900			—			66,276
Engineering and development	—			—			17,412			2,470			—			19,882
General and administrative	—			56			50,353			1,465			(605		)	51,269
Total operating expense	—			56			129,141			8,835			(605		)	137,427
(Loss) income from operations	—			(56		)	(1,200		)	29			157			(1,070		)
Interest expense and other income, net	—			35,661			756			(172		)	—			36,245
(Loss) income before income taxes and equity earnings of unconsolidated entities	—			(35,717		)	(1,956		)	201			157			(37,315		)
Income tax (benefit) expense	—			(13,201		)	15,494			689			—			2,982
(Loss) income before equity earnings of unconsolidated entities	—			(22,516		)	(17,450		)	(488		)	157			(40,297		)
Equity loss (income) of unconsolidated entities, net of tax	40,422			17,906			456			—			(58,817		)	(33		)
Net (loss) income	$	(40,422	)	$	(40,422	)	$	(17,906	)	$	(488	)	$	58,974		$	(40,264	)
Net (loss) income attributable to Endurance International Group Holdings, Inc.	$	(40,422	)	$	(40,422	)	$	(17,906	)	$	(488	)	$	58,974		$	(40,264	)
Comprehensive income (loss):
Foreign currency translation adjustments	—			—			—			1,070			—			1,070
Unrealized gain on cash flow hedge, net of taxes	—			83			—			—			—			83
Total comprehensive (loss) income	$	(40,422	)	$	(40,339	)	$	(17,906	)	$	582		$	58,974		$	(39,111	)

Condensed Consolidating Statements of Operations and Comprehensive Income (Loss)

Nine Months Ended September 30, 2017

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenue	$	—		$	—		$	788,806		$	98,321		$	(4,510	)	$	882,617
Cost of revenue	—			—			392,447			65,392			(3,642		)	454,197
Gross profit	—			—			396,359			32,929			(868		)	428,420
Operating expense:
Sales and marketing	—			—			195,392			15,765			(3		)	211,154
Engineering and development	—			—			51,053			9,340			—			60,393
General and administrative	—			166			123,736			7,632			(605		)	130,929
Transaction costs	—			—			773			—			—			773
Total operating expense	—			166			370,954			32,737			(608		)	403,249
(Loss) income from operations	—			(166		)	25,405			192			(260		)	25,171
Interest expense and other income, net	—			120,313			1,150			(347		)	—			121,116
(Loss) income before income taxes and equity earnings of unconsolidated entities	—			(120,479		)	24,255			539			(260		)	(95,945		)
Income tax (benefit) expense	—			(44,512		)	54,744			1,152			—			11,384
(Loss) income before equity earnings of unconsolidated entities	—			(75,967		)	(30,489		)	(613		)	(260		)	(107,329		)
Equity loss (income) of unconsolidated entities, net of tax	106,999			31,033			543			—			(138,647		)	(72		)
Net (loss) income	$	(106,999	)	$	(107,000	)	$	(31,032	)	$	(613	)	$	138,387		$	(107,257	)
Net loss attributable to non-controlling interest	—			—			7,524			—			—			7,524
Net (loss) income attributable to Endurance International Group Holdings, Inc.	$	(106,999	)	$	(107,000	)	$	(38,556	)	$	(613	)	$	138,387		$	(114,781	)
Comprehensive income (loss):
Foreign currency translation adjustments	—			—			—			2,984			—			2,984
Unrealized gain on cash flow hedge, net of taxes	—			(309		)	—			—			—			(309		)
Total comprehensive (loss) income	$	(106,999	)	$	(107,309	)	$	(38,556	)	$	2,371		$	138,387		$	(112,106	)

Condensed Consolidating Statements of Operations and Comprehensive Income (Loss)

Three Months Ended September 30, 2018

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenue	$	—		$	—		$	258,388		$	26,730		$	(1,348	)	$	283,770
Cost of revenue	—			—			110,808			19,485			(1,348		)	128,945
Gross profit	—			—			147,580			7,245			—			154,825
Operating expense:
Sales and marketing	—			—			60,341			3,490			—			63,831
Engineering and development	—			—			20,524			2,159			—			22,683
General and administrative	(11		)	52			24,187			1,465			—			25,693
Total operating expense	(11		)	52			105,052			7,114			—			112,207
(Loss) income from operations	11			(52		)	42,528			131			—			42,618
Interest expense and other income, net	—			37,305			74			(141		)	—			37,238
(Loss) income before income taxes and equity earnings of unconsolidated entities	11			(37,357		)	42,454			272			—			5,380
Income tax (benefit) expense	—			(8,891		)	22,020			(1,414		)	—			11,715
(Loss) income before equity earnings of unconsolidated entities	11			(28,466		)	20,434			1,686			—			(6,335		)
Equity loss (income) of unconsolidated entities, net of tax	6,346			(22,120		)	(1,686		)	—			17,460			—
Net (loss) income	$	(6,335	)	$	(6,346	)	$	22,120		$	1,686		$	(17,460	)	$	(6,335	)
Net (loss) income attributable to Endurance International Group Holdings, Inc.	$	(6,335	)	$	(6,346	)	$	22,120		$	1,686		$	(17,460	)	$	(6,335	)
Comprehensive income (loss):
Foreign currency translation adjustments	—			—			—			(644		)	—			(644		)
Unrealized gain on cash flow hedge, net of taxes	—			812			—			—			—			812
Total comprehensive (loss) income	$	(6,335	)	$	(5,534	)	$	22,120		$	1,042		$	(17,460	)	$	(6,167	)

Condensed Consolidating Statements of Operations and Comprehensive Income (Loss)

Nine Months Ended September 30, 2018

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenue	$	—		$	—		$	783,611		$	83,995		$	(4,710	)	$	862,896
Cost of revenue	—			—			338,885			59,422			(4,710		)	393,597
Gross profit	—			—			444,726			24,573			—			469,299
Operating expense:
Sales and marketing	—			—			187,175			10,558			—			197,733
Engineering and development	—			—			58,850			5,709			—			64,559
General and administrative	(11		)	169			124,317			(29,263		)	—			95,212
Total operating expense	(11		)	169			370,342			(12,996		)	—			357,504
(Loss) income from operations	11			(169		)	74,384			37,569			—			111,795
Interest expense and other income, net	—			111,051			539			(387		)	—			111,203
(Loss) income before income taxes and equity earnings of unconsolidated entities	11			(111,220		)	73,845			37,956			—			592
Income tax (benefit) expense	—			(26,470		)	35,897			(601		)	—			8,826
(Loss) income before equity earnings of unconsolidated entities	11			(84,750		)	37,948			38,557			—			(8,234		)
Equity loss (income) of unconsolidated entities, net of tax	8,247			(76,503		)	(38,554		)	18			106,794			2
Net (loss) income	$	(8,236	)	$	(8,247	)	$	76,502		$	38,539		$	(106,794	)	$	(8,236	)
Net (loss) income attributable to Endurance International Group Holdings, Inc.	$	(8,236	)	$	(8,247	)	$	76,502		$	38,539		$	(106,794	)	$	(8,236	)
Comprehensive income (loss):
Foreign currency translation adjustments	—			—			—			(2,489		)	—			(2,489		)
Unrealized gain on cash flow hedge, net of taxes	—			1,996			—			—			—			1,996
Total comprehensive (loss) income	$	(8,236	)	$	(6,251	)	$	76,502		$	36,050		$	(106,794	)	$	(8,729	)

Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2017

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations		Consolidated
Net cash (used in) provided by operating activities	$	(32	)	$	(72,687	)	$	204,768		$	(3,183	)	$	—	$	128,866
Cash flows from investing activities:
Purchases of property and equipment	—			—			(28,140		)	(3,955		)	—		(32,095		)
Proceeds from sale of property and equipment	—			—			292			—			—		292
Proceeds from note receivable	—			—			—			—			—		—
Purchases of intangible assets	—			—			(1,932		)	(34		)	—		(1,966		)
Net cash used in investing activities	—			—			(29,780		)	(3,989		)	—		(33,769		)
Cash flows from financing activities:
Proceeds from issuance of notes payable and draws on revolver	—			1,693,007			—			—			—		1,693,007
Repayment of notes payable and revolver	—			(1,733,147		)	—			—			—		(1,733,147		)
Payment of financing costs	—			(6,304		)	—			—			—		(6,304		)
Payment of deferred consideration	—			—			(4,550		)	(858		)	—		(5,408		)
Payment of redeemable non-controlling interest liability	—			—			(25,000		)	—			—		(25,000		)
Principal payments on capital lease obligations	—			—			(5,679		)	—			—		(5,679		)
Proceeds from exercise of stock options	1,548			—			—			—			—		1,548
Intercompany loans and investments	(1,058		)	119,128			(124,060		)	5,990			—		—
Net cash (used in) provided by financing activities	490			72,684			(159,289		)	5,132			—		(80,983		)
Net effect of exchange rate on cash and cash equivalents and restricted cash	—			—			—			2,156			—		2,156
Net (decrease) increase in cash and cash equivalents and restricted cash	458			(3		)	15,699			116			—		16,270
Cash and cash equivalents and restricted cash:
Beginning of period	3			4			41,654			15,237			—		56,898
End of period	$	461		$	1		$	57,353		$	15,353		$	—	$	73,168

Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2018

(in thousands)

	Parent			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations		Consolidated
Net cash (used in) provided by operating activities	$	—		$	(88,464	)	$	180,852		$	41,205		$	—	$	133,593
Cash flows from investing activities:
Purchases of property and equipment	—			—			(22,159		)	(184		)	—		(22,343		)
Proceeds from sale of property and equipment	—			—			6			—			—		6
Net cash used in investing activities	—			—			(22,153		)	(184		)	—		(22,337		)
Cash flows from financing activities:
Proceeds from issuance of term loan and notes, net of original issue discounts	—			1,580,305			—			—			—		1,580,305
Repayment of term loans	—			(1,656,094		)	—			—			—		(1,656,094		)
Payment of financing costs	—			(1,580		)	—			—			—		(1,580		)
Payment of deferred consideration	—			—			(4,500		)	—			—		(4,500		)
Principal payments on capital lease obligations	—			—			(5,609		)	—			—		(5,609		)
Proceeds from exercise of stock options	756			—			—			—			—		756
Intercompany loans and investments	(641		)	165,833			(143,914		)	(21,278		)	—		—
Net cash provided by (used in) financing activities	115			88,464			(154,023		)	(21,278		)	—		(86,722		)
Net effect of exchange rate on cash and cash equivalents and restricted cash	—			—			—			(2,146		)	—		(2,146		)
Net increase (decrease) in cash and cash equivalents and restricted cash	115			—			4,676			17,597			—		22,388
Cash and cash equivalents and restricted cash:
Beginning of period	92			2			56,945			12,079			—		69,118
End of period	$	207		$	2		$	61,621		$	29,676		$	—	$	91,506

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Summary of Significant Accounting Policies - Additional Information (Detail)		3 Months Ended				9 Months Ended		12 Months Ended
	Oct. 31, 2017 USD ($)	Sep. 30, 2018 USD ($)	Mar. 31, 2018 USD ($) reporting_unit	Dec. 31, 2017 USD ($) Segment	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) Segment	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) Segment reporting_unit	Sep. 30, 2017 Segment	Dec. 31, 2016 USD ($)	Jun. 30, 2018 USD ($)	Jan. 01, 2018 USD ($)
Accounting Policies [Line Items]
Number of reportable segments | Segment						3			2
Number of reporting units | reporting_unit			10					10
Goodwill impairment		$ 0				$ 0
Goodwill		1,849,264,000		$ 1,850,582,000		1,849,264,000		$ 1,850,582,000
Goodwill to be reallocated between reporting units			$ 48,000,000
Impairment of long lived assets		0			$ 13,800,000	0	$ 13,848,000
Impairment of other intangible assets						0	0
Software development cost capitalized		2,800,000			2,200,000	7,100,000	8,400,000
Accumulated deficit		(796,353,000)	$ (790,646,000)	(847,501,000)		(796,353,000)		(847,501,000)			$ (790,019,000)
Deferred revenue		477,000,000				477,000,000
Reserves for refunds and chargebacks		300,000		500,000		300,000		500,000
Deferred revenue expected to be refunded		1,800,000		1,800,000		$ 1,800,000		1,800,000
Percentage of deferred revenue refunded within same fiscal month						83.00%
Percentage of deferred revenue refunded within 45 days						96.00%
Recognition of the beginning deferred revenue into revenue, as a result of performance obligations satisfied						$ 331,939,000
Recognition of the beginning deferred revenue into revenue, as a result of performance obligations satisfied						0
Unrecognized tax benefits		2,900,000		$ 1,100,000		2,900,000		$ 1,100,000
Unrecognized tax benefits, income tax penalties and interest expense		100,000			$ 0	300,000	0
Webzai Limited | Engineering and Development
Accounting Policies [Line Items]
Impairment of other intangible assets						0	$ 0
Web Presence
Accounting Policies [Line Items]
Number of reportable segments | Segment				2				2
Goodwill		1,215,101,000		$ 1,216,419,000		1,215,101,000		$ 1,216,419,000
Contract with customer, asset		71,000,000				71,000,000
Capitalized contract cost amortization		34,500,000
Domain
Accounting Policies [Line Items]
Goodwill		29,858,000		29,858,000		29,858,000		29,858,000
Contract with customer, asset		1,400,000				1,400,000
Capitalized contract cost amortization		300,000
Email Marketing
Accounting Policies [Line Items]
Goodwill		604,305,000		604,305,000		604,305,000		$ 604,305,000
Contract with customer, asset		11,400,000				$ 11,400,000
Capitalized contract cost amortization		3,400,000
Reporting Units With Goodwill Allocated
Accounting Policies [Line Items]
Number of reporting units | reporting_unit								7
Reporting Units With No Goodwill Allocated
Accounting Policies [Line Items]
Number of reporting units | reporting_unit								3
Domain monetization | Domain
Accounting Policies [Line Items]
Goodwill impairment	$ 12,100,000			12,100,000
Reporting Units With Goodwill And No Impairment
Accounting Policies [Line Items]
Number of reporting units | reporting_unit								6
Reporting Units Whose Fair Value Exceeds Carrying Value By 20%
Accounting Policies [Line Items]
Goodwill				1,820,700,000				$ 1,820,700,000
Fair value In excess of carrying value								20.00%
domain.com | Domain
Accounting Policies [Line Items]
Goodwill				29,900,000				$ 29,900,000
Fair value In excess of carrying value								6.00%
Backup Reporting Unit | Web Presence
Accounting Policies [Line Items]
Goodwill				$ 2,300,000				$ 2,300,000
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
Accounting Policies [Line Items]
Accumulated deficit												$ 59,400,000
Deferred asset, customer acquisition costs												83,400,000
Deferred asset, domain registration costs												6,100,000
Deferred revenue												23,100,000
Deferred tax liabilities												$ 7,000,000
Web Hosting | Weighted Average
Accounting Policies [Line Items]
Contract term						1 year
Web Hosting | Minimum
Accounting Policies [Line Items]
Contract term						30 days
Web Hosting | Maximum
Accounting Policies [Line Items]
Contract term						3 years
EBITDA | Reclassification of Expenses Between Segments | Web Presence
Accounting Policies [Line Items]
Reclassification between segments								(6,900,000)		$ (3,000,000)
EBITDA | Reclassification of Expenses Between Segments | Domain
Accounting Policies [Line Items]
Reclassification between segments								6,900,000		3,000,000
Gross Profit | Reclassification of Expenses Between Segments | Web Presence
Accounting Policies [Line Items]
Reclassification between segments								(6,900,000)		(3,000,000)
Gross Profit | Reclassification of Expenses Between Segments | Domain
Accounting Policies [Line Items]
Reclassification between segments								$ 6,900,000		$ 3,000,000
Sales And Marketing Costs | Web Presence
Accounting Policies [Line Items]
Contract with customer, asset		0				$ 0
Sales And Marketing Costs | Domain
Accounting Policies [Line Items]
Contract with customer, asset		0				0
Sales And Marketing Costs | Email Marketing
Accounting Policies [Line Items]
Contract with customer, asset		0				0
Recoverable Sales Commissions | Web Presence
Accounting Policies [Line Items]
Contract with customer, asset		71,000,000				71,000,000
Recoverable Sales Commissions | Domain
Accounting Policies [Line Items]
Contract with customer, asset		1,400,000				1,400,000
Recoverable Sales Commissions | Email Marketing
Accounting Policies [Line Items]
Contract with customer, asset		$ 11,400,000				$ 11,400,000
Discount Rate
Accounting Policies [Line Items]
Discount rate				0.100				0.100

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Summary of Significant Accounting Policies - Summary of Estimated Useful Lives (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Property, Plant and Equipment [Line Items]
Goodwill impairment	$ 0		$ 0
Impairment of long lived assets	$ 0	$ 13,800,000	$ 0	$ 13,848,000
Building
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life			35 years
Software | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life			2 years
Software | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life			3 years
Computers and office equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life			3 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life			5 years

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Summary of Significant Accounting Policies - Summary of Changes in Deferred Income (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($)
Short-term
Balance at December 31, 2017	$ 361,940
Deferred revenue	361,940
Recognition of the beginning deferred revenue into revenue, as a result of performance obligations satisfied	(331,939)
Cash received in advance during the period	657,821
Recognition of cash received in the period into revenue, as a result of performance obligations satisfied	(518,087)
Reclassification between short-term and long-term	190,554
Balance at September 30, 2018	380,564
Long-term
Balance at December 31, 2017	90,972
Effect of adoption of ASC 606 to balances at December 31, 2017	90,972
Recognition of the beginning deferred revenue into revenue, as a result of performance obligations satisfied	0
Cash received in advance during the period	193,119
Recognition of cash received in the period into revenue, as a result of performance obligations satisfied	0
Reclassification between short-term and long-term	(190,554)
Balance at September 30, 2018	96,419
Effect of adoption of ASC 606 to balances at December 31, 2017 | Accounting Standards Update 2014-09
Short-term
Balance at December 31, 2017	20,275
Deferred revenue	20,275
Balance at September 30, 2018	1,221
Long-term
Balance at December 31, 2017	2,882
Effect of adoption of ASC 606 to balances at December 31, 2017	2,882
Balance at September 30, 2018	$ 0

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Summary of Significant Accounting Policies - Remaining Performance Obligation (Details) $ in Thousands	Sep. 30, 2018 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 380,564
Expected timing of performance obligation satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 96,419
Expected timing of performance obligation satisfaction
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 476,983
Web Presence | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 265,984
Expected timing of performance obligation satisfaction	1 year
Web Presence | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 81,805
Expected timing of performance obligation satisfaction
Web Presence | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 347,789
Email Marketing | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 55,055
Expected timing of performance obligation satisfaction	1 year
Email Marketing | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 0
Expected timing of performance obligation satisfaction
Email Marketing | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 55,055
Domain | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 59,525
Expected timing of performance obligation satisfaction	1 year
Domain | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 14,614
Expected timing of performance obligation satisfaction
Domain | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 74,139

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Summary of Significant Accounting Policies - Deferred Customer Acquisition Costs (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($)
Short-term
Balance at December 31, 2017	$ 0
Prepaid commissions	0
Deferred customer acquisition costs incurred in the period	13,391
Amounts recognized as expense in the period	(38,192)
Impact of foreign exchange rates	(142)
Reclassification between short-term and long-term	23,279
Balance at September 30, 2018	41,744
Long-term
Balance at December 31, 2017	0
Prepaid commissions, net of current portion	0
Deferred customer acquisition costs incurred in the period	25,307
Amounts recognized as expense in the period	0
Impact of foreign exchange rates	13
Reclassification between short-term and long-term	(23,279)
Balance at September 30, 2018	42,081
Accounting Standards Update 2014-09 | Effect of adoption of ASC 606 to balances at December 31, 2017
Short-term
Balance at December 31, 2017	43,408
Prepaid commissions	43,408
Balance at September 30, 2018	41,744
Long-term
Balance at December 31, 2017	40,040
Prepaid commissions, net of current portion	40,040
Balance at September 30, 2018	$ 42,081

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Summary of Significant Accounting Policies - Summary of Calculation of Basic and Diluted Net Loss Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended	9 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017
Accounting Policies [Abstract]
Net loss attributable to Endurance International Group Holdings, Inc.	$ (6,335)			$ (40,264)		$ (8,236)	$ (114,781)
Net loss per share attributable to Endurance International Group Holdings, Inc.:
Basic net income (loss) per share (in usd per share)	$ (0.04)	$ 0.00	$ (0.02)	$ (0.29)	$ (0.01)	$ (0.06)	$ (0.84)
Diluted net income (loss) per share (in usd per share)	$ (0.04)	$ 0.00	$ (0.02)	$ (0.29)	$ (0.01)	$ (0.06)	$ (0.84)
Weighted-average common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:
Weighted average number of basic shares outstanding (in shares)	143,107,122	142,340,561	140,361,982	137,793,609	141,356,567	141,946,574	136,688,115
Weighted average number of diluted shares outstanding (in shares)	143,107,122	144,702,002	140,361,982	137,793,609	141,356,567	141,946,574	136,688,115

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Summary of Significant Accounting Policies - Summary Of Weighted Average Potentially Dilutive Shares Excluded From Calculation Of Diluted Loss Per Share (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	15,277,877	18,376,402	15,114,561	17,922,369
Restricted Stock Awards and Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	6,915,158	7,782,806	6,470,097	6,974,708
Stock Option Awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	8,362,719	10,593,596	8,644,464	10,947,661

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Summary of Significant Accounting Policies - Schedule of Effects of Topic 606 (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended	9 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	$ 283,770			$ 295,222		$ 862,896	$ 882,617
Cost of revenue	128,945			158,865		393,597	454,197
Sales and marketing	63,831			66,276		197,733	211,154
Prepaid commissions	41,744					41,744		$ 0
Prepaid commissions, net of current portion	42,081					42,081		0
Deferred revenue	380,564					380,564		361,940
Long-term deferred revenue	96,419					96,419		90,972
Net loss	(6,335)	$ 627	$ (2,528)	$ (40,264)	$ (1,901)	(8,236)	(107,257)
Change in prepaid expenses and other assets	5,527					(3,033)	(510)
Deferred revenue	(4,691)					3,502	15,000
Net cash (used in) provided by operating activities	51,341		$ 52,360		$ 82,252	133,593	$ 128,866
Calculated under Revenue Guidance in Effect before Topic 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	284,343					864,117
Cost of revenue	128,583					393,345
Sales and marketing	63,816					198,240
Prepaid commissions	0					0
Prepaid commissions, net of current portion	0					0
Deferred revenue	379,343					379,343
Long-term deferred revenue	96,419					96,419
Net loss	(6,139)					(7,270)
Change in prepaid expenses and other assets	5,904					(2,778)
Deferred revenue	(4,118)					4,723
Net cash (used in) provided by operating activities	51,341					133,593
Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	(573)					(1,221)
Cost of revenue	362					252
Sales and marketing	15					(507)
Prepaid commissions	41,744					41,744		43,408
Prepaid commissions, net of current portion	42,081					42,081		40,040
Deferred revenue	1,221					1,221		20,275
Long-term deferred revenue	0					0		$ 2,882
Net loss	(196)					(966)
Change in prepaid expenses and other assets	(377)					(255)
Deferred revenue	573					1,221
Net cash (used in) provided by operating activities	$ 0					$ 0

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Correction of Income Tax Expense - Fiscal Year 2018 - Narrative (Details) $ in Millions	Dec. 31, 2017 USD ($)
Domestic Tax Authority
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating loss carryforwards	$ 236.3
Domestic Tax Authority | Originally Filed
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating loss carryforwards	157.6
State and Local Jurisdiction
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating loss carryforwards	168.3
State and Local Jurisdiction | Originally Filed
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating loss carryforwards	$ 128.6

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Correction of Income Tax Expense - Fiscal Year 2018 - Effects on Income Statement (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended	9 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
(Loss) income before income taxes and equity earnings of unconsolidated entities	$ 5,380	$ (344)	$ (4,444)	$ (37,315)	$ (4,788)	$ 592	$ (95,945)
Income tax expense	11,715	(946)	(1,943)	2,982	(2,889)	8,826	11,384
Loss before equity earnings of unconsolidated entities	(6,335)	602	(2,501)	(40,297)	(1,899)	(8,234)	(107,329)
Equity (income) loss of unconsolidated entities, net of tax	0	(25)	27	(33)	2	2	(72)
Net loss	(6,335)	627	(2,528)	(40,264)	(1,901)	(8,236)	(107,257)
Comprehensive income (loss):
Foreign currency translation adjustments	(644)	(2,425)	580	1,070	(1,845)	(2,489)	2,984
Unrealized gain on derivative	812	144	1,041	83	1,184	1,996	(309)
Total comprehensive (loss) income	$ (6,167)	$ (1,654)	$ (907)	$ (39,111)	$ (2,562)	$ (8,729)	$ (112,106)
Basic net income (loss) per share (in usd per share)	$ (0.04)	$ 0.00	$ (0.02)	$ (0.29)	$ (0.01)	$ (0.06)	$ (0.84)
Diluted net income (loss) per share (in usd per share)	$ (0.04)	$ 0.00	$ (0.02)	$ (0.29)	$ (0.01)	$ (0.06)	$ (0.84)
Weighted-average common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:
Weighted average number of basic shares outstanding (in shares)	143,107,122	142,340,561	140,361,982	137,793,609	141,356,567	141,946,574	136,688,115
Weighted average number of diluted shares outstanding (in shares)	143,107,122	144,702,002	140,361,982	137,793,609	141,356,567	141,946,574	136,688,115
Originally Filed
Error Corrections and Prior Period Adjustments Restatement [Line Items]
(Loss) income before income taxes and equity earnings of unconsolidated entities		$ (344)	$ (4,444)		$ (4,788)
Income tax expense		1,650	2,617		4,267
Loss before equity earnings of unconsolidated entities		(1,994)	(7,061)		(9,055)
Equity (income) loss of unconsolidated entities, net of tax		(25)	27		2
Net loss		(1,969)	(7,088)		(9,057)
Comprehensive income (loss):
Foreign currency translation adjustments		(2,425)	580		(1,845)
Unrealized gain on derivative		144	1,041		1,184
Total comprehensive (loss) income		$ (4,250)	$ (5,467)		$ (9,718)
Basic net income (loss) per share (in usd per share)		$ (0.01)	$ (0.05)		$ (0.06)
Diluted net income (loss) per share (in usd per share)		$ (0.01)	$ (0.05)		$ (0.06)
Weighted-average common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:
Weighted average number of basic shares outstanding (in shares)		142,340,561	140,361,982		141,356,567
Weighted average number of diluted shares outstanding (in shares)		142,340,561	140,361,982		141,356,567
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
(Loss) income before income taxes and equity earnings of unconsolidated entities		$ 0	$ 0		$ 0
Income tax expense		(2,596)	(4,560)		(7,156)
Loss before equity earnings of unconsolidated entities		2,596	4,560		7,156
Equity (income) loss of unconsolidated entities, net of tax			0		0
Net loss		2,596	4,560		7,156
Comprehensive income (loss):
Foreign currency translation adjustments		0	0		0
Unrealized gain on derivative		0	0		0
Total comprehensive (loss) income		$ 2,596	$ 4,560		$ 7,156
Basic net income (loss) per share (in usd per share)		$ 0.01	$ 0.03		$ 0.05
Diluted net income (loss) per share (in usd per share)		$ 0.01	$ 0.03		$ 0.05
Weighted-average common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:
Weighted average number of basic shares outstanding (in shares)		0	0		0
Weighted average number of diluted shares outstanding (in shares)		2,361,441	0		0

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Correction of Income Tax Expense - Fiscal Year 2018 - Effects on Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Deferred tax liability	$ 36,498	$ 22,741	$ 23,119	$ 19,696
Total liabilities	2,461,805	2,482,950	2,529,059	2,518,081
Accumulated deficit	(796,353)	(790,019)	(790,646)	(847,501)
Total stockholders’ equity	156,598	154,915	148,749	83,005
Total liabilities and stockholders’ equity	$ 2,618,403	2,637,865	2,677,808	$ 2,601,086
Originally Filed
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Deferred tax liability		29,897	27,679
Total liabilities		2,490,106	2,533,619
Accumulated deficit		(797,175)	(795,206)
Total stockholders’ equity		147,759	144,189
Total liabilities and stockholders’ equity		2,637,865	2,677,808
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Deferred tax liability		(7,156)	(4,560)
Total liabilities		(7,156)	(4,560)
Accumulated deficit		7,156	4,560
Total stockholders’ equity		7,156	4,560
Total liabilities and stockholders’ equity		$ 0	$ 0

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Correction of Income Tax Expense - Fiscal Year 2018 - Effects on Cash Flow Statement (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended	9 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss	$ (6,335)	$ 627	$ (2,528)	$ (40,264)	$ (1,901)	$ (8,236)	$ (107,257)
Deferred tax expense (benefit)			(4,068)		(4,484)	8,839	6,442
Net cash (used in) provided by operating activities	$ 51,341		52,360		82,252	$ 133,593	$ 128,866
Originally Filed
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss		(1,969)	(7,088)		(9,057)
Deferred tax expense (benefit)			492		2,672
Net cash (used in) provided by operating activities			52,360		82,252
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss		$ 2,596	4,560		7,156
Deferred tax expense (benefit)			(4,560)		(7,156)
Net cash (used in) provided by operating activities			$ 0		$ 0

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Acquisitions - Summary of Deferred Consideration Related to Acquisition (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Deferred consideration, short-term	$ 2,386	$ 4,365
AppMachine
Business Acquisition [Line Items]
Deferred consideration	3,700	7,900
Deferred consideration, short-term	$ 2,400	$ 4,400

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Property and Equipment and Capital Lease Obligations - Components of Property and Equipment (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property and equipment—at cost	$ 295,794	$ 286,603
Less accumulated depreciation	(216,479)	(191,151)
Property and equipment—net	79,315	95,452
Land
Property, Plant and Equipment [Line Items]
Property and equipment—at cost	790	790
Building
Property, Plant and Equipment [Line Items]
Property and equipment—at cost	7,294	5,037
Software
Property, Plant and Equipment [Line Items]
Property and equipment—at cost	88,376	82,618
Computers and office equipment
Property, Plant and Equipment [Line Items]
Property and equipment—at cost	158,188	153,273
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment—at cost	19,259	18,825
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment—at cost	19,672	22,260
Construction in process
Property, Plant and Equipment [Line Items]
Property and equipment—at cost	$ 2,215	$ 3,800

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Property and Equipment and Capital Lease Obligations - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Property, Plant and Equipment [Abstract]
Depreciation	$ 11,889	$ 13,571	$ 36,753	$ 40,733
Capital lease included in software	15,500		15,500
Capital leases	$ 10,600		$ 10,600

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Fair Value Measurements - Basis of Fair Value Measurements (Detail) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Financial assets:
Interest rate cap (included in other assets)	$ 6,863	$ 452
Total financial assets	6,863	452
Significant Other Observable Inputs (Level 2)
Financial assets:
Interest rate cap (included in other assets)	6,863	452
Total financial assets	$ 6,863	$ 452

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Derivatives And Hedging Activities - Additional Information (Detail)	1 Months Ended	3 Months Ended				6 Months Ended	9 Months Ended
	Jun. 30, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Sep. 30, 2018 USD ($) agreement	Sep. 30, 2017 USD ($)	Dec. 31, 2015 USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense		$ 37,527,000			$ 35,848,000		$ 111,923,000	$ 121,022,000
Unrealized gain (loss) on cash flow hedge, net of taxes of $48 and $256, and $(182) and $626 for the three and nine months ended September 30, 2017 and 2018, respectively		812,000	$ 144,000	$ 1,041,000	83,000	$ 1,184,000	1,996,000	(309,000)
Unrealized gain (loss) arising during period, tax		256,000			$ 48,000		$ 626,000	$ (182,000)
Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Number of interest rate cap agreements | agreement							2
Interest rate cap period							3 years
Interest Rate Cap Entered Into December 2015
Derivative Instruments, Gain (Loss) [Line Items]
Fair value of the interest rate contracts		1,000,000					$ 1,000,000
Interest Rate Cap Entered Into December 2015 | Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative loss to be reclassified as increase to interest expense in the next twelve months		100,000					100,000
Interest Rate Cap Entered Into December 2015 | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount outstanding									$ 500,000,000
Interest Rate Cap Entered Into December 2015 | Cash Flow Hedging | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on cash flow hedge, net of taxes of $48 and $256, and $(182) and $626 for the three and nine months ended September 30, 2017 and 2018, respectively							1,900,000
Unrealized gain (loss) arising during period, tax							100,000
Interest Rate Cap Entered Into December 2015 | Cash Flow Hedging | Reclassification out of Accumulated Other Comprehensive Income | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense		600,000					1,200,000
Interest Rate Cap Entered Into June 2018
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate cap period	3 years
Fair value of the interest rate contracts		5,900,000					5,900,000
Interest Rate Cap Entered Into June 2018 | Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative loss to be reclassified as increase to interest expense in the next twelve months		1,700,000					1,700,000
Interest Rate Cap Entered Into June 2018 | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount outstanding	$ 800,000,000.0		$ 800,000,000.0			$ 800,000,000.0
Interest Rate Cap Entered Into June 2018 | Cash Flow Hedging | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on cash flow hedge, net of taxes of $48 and $256, and $(182) and $626 for the three and nine months ended September 30, 2017 and 2018, respectively							700,000
Unrealized gain (loss) arising during period, tax							200,000
Interest Rate Cap Entered Into June 2018 | Cash Flow Hedging | Reclassification out of Accumulated Other Comprehensive Income | Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense		$ 400,000					$ 500,000

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Goodwill and Other Intangible Assets - Changes in Goodwill Balances (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 1,850,582
Foreign translation impact	(1,318)
Goodwill, ending balance	1,849,264
Web Presence
Goodwill [Roll Forward]
Goodwill, beginning balance	1,216,419
Foreign translation impact	(1,318)
Goodwill, ending balance	1,215,101
Email Marketing
Goodwill [Roll Forward]
Goodwill, beginning balance	604,305
Foreign translation impact	0
Goodwill, ending balance	604,305
Domain
Goodwill [Roll Forward]
Goodwill, beginning balance	29,858
Foreign translation impact	0
Goodwill, ending balance	$ 29,858

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Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,142,895	$ 1,144,468
Accumulated Amortization	765,225	689,028
Net Carrying Amount	377,670	455,440
Domain names available for sale
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	30,855	30,458
Accumulated Amortization	9,091	7,221
Net Carrying Amount	$ 21,764	$ 23,237
Weighted average useful life	Indefinite	Indefinite
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 284,312	$ 285,911
Accumulated Amortization	173,203	149,514
Net Carrying Amount	$ 111,109	$ 136,397
Weighted average useful life	7 years	7 years
Subscriber relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 659,376	$ 659,732
Accumulated Amortization	472,625	431,938
Net Carrying Amount	$ 186,751	$ 227,794
Weighted average useful life	7 years	7 years
Trade-names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 134,046	$ 134,054
Accumulated Amortization	81,740	73,019
Net Carrying Amount	$ 52,306	$ 61,035
Weighted average useful life	8 years	8 years
Intellectual property
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 34,306	$ 34,313
Accumulated Amortization	28,566	27,336
Net Carrying Amount	$ 5,740	$ 6,977
Weighted average useful life	5 years	5 years

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Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment of other intangible assets			$ 0	$ 0
Amortization of other intangible assets	$ 26,177,000	$ 35,347,000	$ 77,890,000	$ 104,554,000

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Investments - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	May 31, 2014	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Jan. 31, 2012
Schedule of Equity Method Investments [Line Items]
Investments		$ 15,266		$ 15,266		$ 15,267
Accounts payable		$ 10,812		$ 10,812		11,058
Proportionate share exceed of the company's consolidated assets or income		10.00%		10.00%
Bluezone Labs, LLC
Schedule of Equity Method Investments [Line Items]
Amount of investment for acquisition							$ 300
Ownership interest							25.00%
Purchase of products and services		$ 200	$ 400	$ 900	$ 1,300
Accounts payable		0		0		100
Prepaid expense		$ 100		$ 100		$ 700
Automattic
Schedule of Equity Method Investments [Line Items]
Investment made on asset	$ 15,000
Percentage of outstanding shares invested	5.00%
Minimum
Schedule of Equity Method Investments [Line Items]
Voting interest		20.00%		20.00%
Maximum
Schedule of Equity Method Investments [Line Items]
Voting interest		50.00%		50.00%

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Notes Payable - Schedule of Long Term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Long-Term Debt [Line Items]
Total	$ 1,824,042	$ 1,892,245
Current maturities	31,606	33,945
Excluding current maturities	1,792,436	1,858,300
2018 First Lien Term Loan
Long-Term Debt [Line Items]
Total	1,493,131	0
Current maturities	31,606
Excluding current maturities	1,461,525
2017 First Lien Term Loan
Long-Term Debt [Line Items]
Total	0	1,563,197
Current maturities	0	33,945
Excluding current maturities	0	1,529,252
Notes
Long-Term Debt [Line Items]
Total	330,911	329,048
Current maturities	0	0
Excluding current maturities	330,911	329,048
Revolving credit facilities
Long-Term Debt [Line Items]
Total	$ 0	$ 0

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Notes Payable - Additional Information (Detail)				3 Months Ended				9 Months Ended
	Jun. 20, 2018 USD ($)	Jun. 14, 2017 USD ($)	Feb. 09, 2016 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) repayment prepayment	Sep. 30, 2017 USD ($)	Jan. 30, 2017 USD ($)
Long-Term Debt [Line Items]
Repayments of long-term debt								$ 1,656,094,000	$ 1,733,147,000
Line of credit facility, unused capacity, commitment fee percentage				0.50%		0.50%		0.50%	0.50%
Interest expense				$ 37,527,000		$ 35,848,000		$ 111,923,000	$ 121,022,000
Interest expense and service fees				34,469,000		32,551,000		101,575,000	105,371,000
Financing costs expensed				0		$ 0	$ 5,500,000	1,228,000	$ 5,487,000
Revolving Credit Facility
Long-Term Debt [Line Items]
Revolving credit facility maximum borrowing amount			$ 165,000,000.0	$ 165,000,000.0				$ 165,000,000.0
Commitment fee percentage			0.50%
2018 First Lien Term Loan
Long-Term Debt [Line Items]
Original note balance	$ 1,580,300,000.0
Debt instrument revised LIBOR rate	3.75%
Reference rate	2.75%
Basis revised spread on LIBOR rate	1.00%
Basis spread on reference rate	2.00%
Number of mandatory repayments | repayment								2
Repayments of long-term debt								$ 7,900,000
Unamortized debt issuance expense					$ 400,000
Interest expense and service fees					300,000
Financing costs expensed					1,200,000
2018 First Lien Term Loan | London Interbank Offered Rate (LIBOR)
Long-Term Debt [Line Items]
Basis spread on variable rate	1.00%
2018 First Lien Term Loan | Federal Funds Effective Rate
Long-Term Debt [Line Items]
Basis spread on variable rate	0.50%
2017 First Lien Term Loan
Long-Term Debt [Line Items]
Original note balance		$ 1,697,300,000.0
Debt issue price		99.75%
Debt instrument revised LIBOR rate		4.00%
Reference rate		3.00%
Basis revised spread on LIBOR rate		1.00%
Basis spread on reference rate		2.00%
Number of mandatory repayments | repayment								1
Repayments of long-term debt	$ 1,580,300,000							$ 8,500,000
Number of voluntary prepayments | prepayment								1
Voluntary prepayments								$ 17,000,000
Debt issuance costs, gross							4,200,000
Unamortized debt issuance expense							900,000
2017 First Lien Term Loan | London Interbank Offered Rate (LIBOR)
Long-Term Debt [Line Items]
Basis spread on variable rate		1.00%
2017 First Lien Term Loan | Federal Funds Effective Rate
Long-Term Debt [Line Items]
Basis spread on variable rate		0.50%
2016 Revolver Commitments Maturing June 2023 | Revolving Credit Facility
Long-Term Debt [Line Items]
Revolving credit facility maximum borrowing amount					106,200,000.0
2016 Revolver Commitments Maturing February 2021 | Revolving Credit Facility
Long-Term Debt [Line Items]
Revolving credit facility maximum borrowing amount					$ 58,750,000.000
2013 First Lien Term Loan
Long-Term Debt [Line Items]
Interest expense and service fees							$ 1,000,000
Alternate Base Rate Loans | Revolving Credit Facility | Federal Funds Effective Rate
Long-Term Debt [Line Items]
Basis spread on variable rate			0.50%
Alternate Base Rate Loans | Non-extended Revolving Loan
Long-Term Debt [Line Items]
Basis revised spread on LIBOR rate			3.00%
Alternate Base Rate Loans | Extended Revolving Loan
Long-Term Debt [Line Items]
Basis revised spread on LIBOR rate			2.25%
LIBOR Based Interest Rate Loan | Revolving Credit Facility | London Interbank Offered Rate (LIBOR)
Long-Term Debt [Line Items]
Basis revised spread on LIBOR rate			1.00%
LIBOR Based Interest Rate Loan | Non-extended Revolving Loan
Long-Term Debt [Line Items]
Reference rate			4.00%
LIBOR Based Interest Rate Loan | Extended Revolving Loan
Long-Term Debt [Line Items]
Reference rate			3.25%
Notes
Long-Term Debt [Line Items]
Original note balance			$ 350,000,000.0
Redemption price, percentage								101.00%
Par value percentage			98.065%
Interest rate, stated percentage			10.875%	10.875%		10.875%		10.875%	10.875%
Senior notes										$ 350,000,000
Voluntary Prepayment Number One | 2018 First Lien Term Loan
Long-Term Debt [Line Items]
Number of voluntary prepayments | prepayment								1
Voluntary prepayments								$ 17,000,000
Voluntary Prepayment Number Two | 2018 First Lien Term Loan
Long-Term Debt [Line Items]
Number of voluntary prepayments | prepayment								1
Voluntary prepayments								$ 17,500,000

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Notes Payable - Schedule of 2018 First Lien Term Loan (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Long-Term Debt [Line Items]
Long-term debt, gross	$ 1,880,002
Deferred financing costs	(33,515)	$ (37,736)
Total	1,824,042	1,892,245
Current maturities	31,606	33,945
Excluding current maturities	1,792,436	1,858,300
2018 First Lien Term Loan
Long-Term Debt [Line Items]
Long-term debt, gross	1,530,002
Unamortized deferred financing costs	(19,594)
Deferred financing costs	(17,277)
Total	1,493,131	$ 0
Current maturities	31,606
Excluding current maturities	$ 1,461,525

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Notes Payable-Schedule of 2017 First Lien Term Loan (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Long-Term Debt [Line Items]
Long-term debt, gross	$ 1,880,002
Deferred financing costs	(33,515)	$ (37,736)
Total	1,824,042	1,892,245
Current maturities	31,606	33,945
Excluding current maturities	1,792,436	1,858,300
2017 First Lien Term Loan
Long-Term Debt [Line Items]
Long-term debt, gross	0	1,605,792
Unamortized deferred financing costs	0	(22,456)
Deferred financing costs	0	(20,139)
Total	0	1,563,197
Current maturities	0	33,945
Excluding current maturities	$ 0	$ 1,529,252

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Notes Payable - Schedule of Senior Notes (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Long-Term Debt [Line Items]
Long-term debt, gross	$ 1,880,002
Deferred financing costs	(33,515)	$ (37,736)
Total	1,824,042	1,892,245
Current maturities	31,606	33,945
Long-term debt, excluding current maturities	1,792,436	1,858,300
Notes
Long-Term Debt [Line Items]
Long-term debt, gross	350,000	350,000
Unamortized deferred financing costs	(13,921)	(15,280)
Deferred financing costs	(5,168)	(5,672)
Total	330,911	329,048
Current maturities	0	0
Long-term debt, excluding current maturities	$ 330,911	$ 329,048

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Notes Payable - Summary of Future Debt Maturities (Detail) $ in Thousands	Sep. 30, 2018 USD ($)
Debt Disclosure [Abstract]
(Remainder of) 2018	$ 7,902
2019	31,606
2020	31,606
2021	31,606
2022	31,606
Thereafter	1,745,676
Total	$ 1,880,002

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Notes Payable - Schedule of Interest Rates and Interest Expense (Detail) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Feb. 09, 2016
Long-Term Debt [Line Items]
Line of credit facility, unused capacity, commitment fee percentage	0.50%	0.50%		0.50%	0.50%
Interest expense and service fees	$ 34,469	$ 32,551		$ 101,575	$ 105,371
Loss on early extinguishment of debt	0	0		331	992
Financing costs expensed	0	0	$ 5,500	1,228	5,487
Amortization of deferred financing fees	1,722	1,873		4,708	5,403
Amortization of original issue discounts	1,083	1,059		3,209	2,791
Amortization of net present value of deferred consideration	60	127		311	504
Other interest expense	193	238		561	474
Interest expense	$ 37,527	$ 35,848		$ 111,923	$ 121,022
Notes
Long-Term Debt [Line Items]
Interest rate, stated percentage	10.875%	10.875%		10.875%	10.875%	10.875%
Minimum
Long-Term Debt [Line Items]
Debt instrument LIBOR rate	5.81%	5.14%		5.46%	5.14%
Maximum
Long-Term Debt [Line Items]
Debt instrument LIBOR rate	6.07%	5.32%		6.32%	6.68%

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Stockholders' Equity - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2018 vote
Equity [Abstract]
Number of votes per share	1

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Stockholders' Equity - Summary of Changes in Stockholders' Equity (Detail) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended	9 Months Ended
	Jan. 01, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Increase (Decrease) in Stockholder's Equity [Roll Forward]
Stockholders' equity attributable to parent, beginning balance	$ 83,005			$ 83,005		$ 83,005	$ 83,005
Stock-based compensation							21,932
Reclassification of stock-compensation liability award							250
Stock option exercises							756
Foreign currency translation adjustment		$ (644)	$ (2,425)	580	$ 1,070	(1,845)	(2,489)	$ 2,984
Unrealized gain on derivative		812	$ 144	$ 1,041	83	$ 1,184	1,996	(309)
Net loss attributable to Endurance International Group Holdings, Inc.		(6,335)			$ (40,264)		(8,236)	$ (114,781)
Stockholders' equity attributable to parent, ending balance		$ 156,598					$ 156,598
Accounting Standards Update 2014-09
Increase (Decrease) in Stockholder's Equity [Roll Forward]
Adjustment to beginning retained earnings resulting from adoption of ASC 606, net of tax impact of $7.0 million									$ 59,384
Tax Impact of ASC 606	$ 7,000

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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended			9 Months Ended		12 Months Ended
	Aug. 11, 2017	Feb. 09, 2016	Sep. 30, 2018	Sep. 30, 2017	Mar. 31, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, par value (in usd per share)			$ 0.0001			$ 0.0001		$ 0.0001
Stock-based compensation expense			$ 7,550	$ 19,580		$ 21,932	$ 48,749
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost not yet recognized			43,700			43,700
Stock Option Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost not yet recognized			$ 8,900			$ 8,900
2016 Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense					$ 1,200
Chief Executive Officer | 2015 Performance Based Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award shares granted for vesting (in shares)									3,693,754
Vested period of award shares									3 years
Number of RSUs expected to vest (in shares)								1,661,439
Performance award shares forfeited (in shares)								2,032,315
Chief Financial Officer | 2016 Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award shares granted for vesting (in shares)					223,214
Chief Operating Officer | 2016 Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award shares granted for vesting (in shares)					260,416
Chief Administrative Officer | 2016 Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award shares granted for vesting (in shares)					148,810
2013 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future awards (in shares)			38,000,000			38,000,000
Shares available for grant (in shares)			16,722,969			16,722,969
Stock options, granted (in shares)						611,010
2013 Stock Incentive Plan | Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award shares granted for vesting (in shares)						0
Vested (in shares)						819,886
Vesting period						4 years
Compensation cost not yet recognized, period for recognition						2 years 1 month 6 days
Performance award shares forfeited (in shares)						2,134,075
2013 Stock Incentive Plan | Stock Option Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost not yet recognized, period for recognition						1 year 7 months 9 days
2013 Stock Incentive Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award shares granted for vesting (in shares)						3,846,567
Vested (in shares)						1,185,704
Performance award shares forfeited (in shares)						394,763
2017 CEO Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 10,375						$ 2,200
2017 CEO Award | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs expected to vest (in shares)			750,000			750,000
2017 CEO Award | Chief Executive Officer | Stock Option Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award shares granted for vesting (in shares)	612,419
Vested period of award shares	3 years
2017 CEO Award | Chief Executive Officer | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award shares granted for vesting (in shares)	1,032,500
Vested (in shares)	282,500
Vested period of award shares	3 years
2011 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future awards (in shares)		10,000,000
Shares available for grant (in shares)			8,390,174			8,390,174
Common stock, par value (in usd per share)		$ 0.01
Stock options, granted (in shares)						0
2011 Stock Incentive Plan | Stock Option Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, granted (in shares)		2,143,987
2011 Stock Incentive Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award shares granted for vesting (in shares)		2,202,846				41,379
Vested (in shares)						516,600
Performance award shares forfeited (in shares)						92,030
Share-based Compensation Award, Tranche One | 2017 CEO Award | Stock Option Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards expected to vest outstanding (percent)			33.30%			33.30%
Share-based Compensation Award, Tranche One | 2017 CEO Award | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs expected to vest (in shares)			250,000			250,000
Share-based Compensation Award, Tranche Two | 2017 CEO Award | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs expected to vest (in shares)			250,000,000			250,000,000
Share-based Compensation Award, Tranche Three | 2017 CEO Award | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs expected to vest (in shares)			250,000,000			250,000,000
Minimum | 2013 Stock Incentive Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period						3 years
Maximum | 2011 Stock Incentive Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period						4 years

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Stock-Based Compensation - Summary of Total Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Stock-based compensation expense	$ 7,550	$ 19,580	$ 21,932	$ 48,749
2011 And 2013 Stock Incentive Plan
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Stock-based compensation expense	7,550	19,579	21,932	48,749
Cost of revenue | 2011 And 2013 Stock Incentive Plan
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Stock-based compensation expense	828	1,553	3,223	4,720
Sales and marketing | 2011 And 2013 Stock Incentive Plan
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Stock-based compensation expense	1,478	2,263	4,009	7,027
Engineering and development | 2011 And 2013 Stock Incentive Plan
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Stock-based compensation expense	1,237	1,807	3,519	4,707
General and administrative | 2011 And 2013 Stock Incentive Plan
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Stock-based compensation expense	$ 4,007	$ 13,956	$ 11,181	$ 32,295

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Stock-Based Compensation - Summary of Stock Options (Detail) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($) $ / shares shares
2013 Stock Incentive Plan
Stock Options
Beginning balance stock options, outstanding (in shares) | shares	8,575,150
Stock options, granted (in shares) | shares	611,010
Stock options, exercised (in shares) | shares	(19,049)
Stock options, forfeited (in shares) | shares	(304,382)
Stock options, expired (in shares) | shares	(1,516,912)
Ending balance stock options, outstanding (in shares) | shares	7,345,817
Stock options, exercisable (in shares) | shares	5,475,357
Stock options, expected to vest after September 30, 2017 (in shares) | shares	1,870,460
Stock options, exercisable as of March 31, 2017 and expected to vest thereafter (in shares) | shares	7,345,817
Weighted- Average Exercise Price
Weighted - average exercise price, outstanding (in usd per share)	$ 12.30
Weighted - average exercise price, granted (in usd per share)	7.50
Weighted - average exercise price, exercised (in usd per share)	8.09
Weighted - average exercise price, forfeited (in usd per share)	12.79
Weighted - average exercise price, expired (in usd per share)	13.56
Weighted - average exercise price, outstanding (in usd per share)	11.63
Weighted - average exercise price exercisable at March 31, 2017 (in usd per share)	12.39
Weighted - average exercise price, expected to vest after March 31, 2017 (in usd per share)	9.39
Weighted - average exercise price, exercisable as of March 31, 2017 and expected to vest thereafter (in usd per share)	$ 11.63
Weighted - average remaining contractual term, outstanding	5 years 36 days
Weighted - average remaining contractual term, exercisable at March 31, 2017	3 years 10 months 28 days
Weighted - average remaining contractual term, expected to vest after March 31, 2017	8 years 4 months 26 days
Weighted - average remaining contractual term, exercisable as of March 31, 2017 and expected to vest thereafter	5 years 36 days
Aggregate intrinsic value, outstanding | $	$ 1,600
Aggregate intrinsic value, exercisable at March 31, 2017 | $	283
Aggregate intrinsic value, expected to vest after March 31, 2017 | $	1,317
Aggregate intrinsic value, exercisable as of March 31, 2017 and expected to vest thereafter | $	$ 1,600
Estimated fair value of the Company's common stock (in usd per share)	$ 8.80
2011 Stock Incentive Plan
Stock Options
Beginning balance stock options, outstanding (in shares) | shares	888,260
Stock options, granted (in shares) | shares	0
Stock options, exercised (in shares) | shares	(92,229)
Stock options, forfeited (in shares) | shares	(10,256)
Stock options, expired (in shares) | shares	(38,652)
Ending balance stock options, outstanding (in shares) | shares	747,123
Stock options, exercisable (in shares) | shares	563,823
Stock options, expected to vest after September 30, 2017 (in shares) | shares	183,300
Stock options, exercisable as of March 31, 2017 and expected to vest thereafter (in shares) | shares	747,123
Weighted- Average Exercise Price
Weighted - average exercise price, outstanding (in usd per share)	$ 8.75
Weighted - average exercise price, granted (in usd per share)	0.00
Weighted - average exercise price, exercised (in usd per share)	6.53
Weighted - average exercise price, forfeited (in usd per share)	10.47
Weighted - average exercise price, expired (in usd per share)	9.21
Weighted - average exercise price, outstanding (in usd per share)	8.98
Weighted - average exercise price exercisable at March 31, 2017 (in usd per share)	8.76
Weighted - average exercise price, expected to vest after March 31, 2017 (in usd per share)	9.65
Weighted - average exercise price, exercisable as of March 31, 2017 and expected to vest thereafter (in usd per share)	$ 8.98
Weighted - average remaining contractual term, outstanding	3 years 8 months 15 days
Weighted - average remaining contractual term, exercisable at March 31, 2017	3 years 6 months 2 days
Weighted - average remaining contractual term, expected to vest after March 31, 2017	4 years 2 months
Weighted - average remaining contractual term, exercisable as of March 31, 2017 and expected to vest thereafter	3 years 8 months 15 days
Aggregate intrinsic value, outstanding | $	$ 546
Aggregate intrinsic value, exercisable at March 31, 2017 | $	499
Aggregate intrinsic value, expected to vest after March 31, 2017 | $	47
Aggregate intrinsic value, exercisable as of March 31, 2017 and expected to vest thereafter | $	$ 546
Estimated fair value of the Company's common stock (in usd per share)	$ 8.80

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Stock-Based Compensation - Summary of Restricted Stock Awards and Restricted Stock Units (Detail) - $ / shares		9 Months Ended
	Feb. 09, 2016	Sep. 30, 2018
Restricted Stock Awards | 2013 Stock Incentive Plan
Restricted Stock Units
Non-vested, beginning balance (in shares)		3,432,946
Granted (in shares)		0
Vested (in shares)		(819,886)
Canceled (in shares)		(2,134,075)
Non-vested, ending balance (in shares)		478,985
Weighted Average Grant Date Fair Value
Weighted average grant date fair value, non-vested, beginning balance (in usd per share)		$ 13.79
Weighted average grant date fair value, granted (in usd per share)		0.00
Weighted average grant date fair value, vested (in usd per share)		12.29
Weighted average grant date fair value, canceled (in usd per share)		14.85
Weighted average grant date fair value, non-vested, ending balance (in usd per share)		$ 11.62
Restricted Stock Units | 2011 Stock Incentive Plan
Restricted Stock Units
Non-vested, beginning balance (in shares)		1,541,141
Granted (in shares)	2,202,846	41,379
Vested (in shares)		(516,600)
Canceled (in shares)		(92,030)
Non-vested, ending balance (in shares)		973,890
Weighted Average Grant Date Fair Value
Weighted average grant date fair value, non-vested, beginning balance (in usd per share)		$ 8.30
Weighted average grant date fair value, granted (in usd per share)		7.25
Weighted average grant date fair value, vested (in usd per share)		8.38
Weighted average grant date fair value, canceled (in usd per share)		8.53
Weighted average grant date fair value, non-vested, ending balance (in usd per share)		$ 8.20
Restricted Stock Units | 2013 Stock Incentive Plan
Restricted Stock Units
Non-vested, beginning balance (in shares)		3,004,137
Granted (in shares)		3,846,567
Vested (in shares)		(1,185,704)
Canceled (in shares)		(394,763)
Non-vested, ending balance (in shares)		5,270,237
Weighted Average Grant Date Fair Value
Weighted average grant date fair value, non-vested, beginning balance (in usd per share)		$ 7.93
Weighted average grant date fair value, granted (in usd per share)		7.55
Weighted average grant date fair value, vested (in usd per share)		9.08
Weighted average grant date fair value, canceled (in usd per share)		7.78
Weighted average grant date fair value, non-vested, ending balance (in usd per share)		$ 7.67

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Accumulated Other Comprehensive Income (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity attributable to parent, beginning balance	$ 83,005
Other comprehensive income (loss)	(493)
Stockholders' equity attributable to parent, ending balance	156,598
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity attributable to parent, beginning balance	696
Other comprehensive income (loss)	(2,489)
Stockholders' equity attributable to parent, ending balance	(1,793)
Unrealized Gains (Losses) on Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity attributable to parent, beginning balance	(1,237)
Other comprehensive income (loss)	1,996
Stockholders' equity attributable to parent, ending balance	759
AOCI Attributable to Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity attributable to parent, beginning balance	(541)
Stockholders' equity attributable to parent, ending balance	$ (1,034)

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Revenue - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	$ 283,770,000	$ 295,222,000	$ 862,896,000	$ 882,617,000
Contract impairment loss	0		0
Credit loss expense	0		0
Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Adjustment to beginning retained earnings resulting from adoption of ASC 606, net of tax impact of $7.0 million					$ 59,384,000
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	(573,000)		(1,221,000)
Customer acquisition costs	$ 0		$ 500,000

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Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 283,770	$ 862,896
Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	275,066	835,768
Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	8,704	27,128
Domestic
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	206,566	626,966
International
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	77,204	235,930
Direct revenue from subscribers | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	252,596	766,089
Professional services | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	3,789	11,436
Reseller revenue | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	18,681	58,243
MDF | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	2,592	6,949
Premium domains | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	5,070	15,893
Domain parking | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	1,042	4,286
Web Presence
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	149,871	457,603
Web Presence | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	147,497	450,899
Web Presence | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	2,374	6,704
Web Presence | Domestic
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	100,065	306,724
Web Presence | International
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	49,806	150,879
Web Presence | Direct revenue from subscribers | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	138,869	424,321
Web Presence | Professional services | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	3,387	10,091
Web Presence | Reseller revenue | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	5,241	16,487
Web Presence | MDF | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	2,199	6,012
Web Presence | Premium domains | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	3	70
Web Presence | Domain parking | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	172	622
Email Marketing
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	102,111	306,712
Email Marketing | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	101,970	306,248
Email Marketing | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	141	464
Email Marketing | Domestic
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	93,992	281,717
Email Marketing | International
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	8,119	24,995
Email Marketing | Direct revenue from subscribers | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	100,816	302,583
Email Marketing | Professional services | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	299	1,045
Email Marketing | Reseller revenue | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	855	2,620
Email Marketing | MDF | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	141	464
Email Marketing | Premium domains | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Email Marketing | Domain parking | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Domain Name Business
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	31,788	98,581
Domain Name Business | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	25,599	78,621
Domain Name Business | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	6,189	19,960
Domain Name Business | Domestic
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	12,509	38,525
Domain Name Business | International
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	19,279	60,056
Domain Name Business | Direct revenue from subscribers | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	12,911	39,185
Domain Name Business | Professional services | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	103	300
Domain Name Business | Reseller revenue | Subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	12,585	39,136
Domain Name Business | MDF | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	252	473
Domain Name Business | Premium domains | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	5,067	15,823
Domain Name Business | Domain parking | Non-subscriber revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 870	$ 3,664

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Redeemable Non-Controlling Interest - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jul. 07, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Jul. 01, 2017	Jul. 14, 2016	May 16, 2016	Jan. 06, 2016	Aug. 31, 2014
Redeemable Noncontrolling Interest [Line Items]
Reduced accretion value						$ 14,200
Accretion in excess of fair value		$ 0	$ 0	$ 0	$ 7,247
WZ (UK) Ltd.
Redeemable Noncontrolling Interest [Line Items]
Ownership interest							86.40%	77.50%	57.50%	49.00%
Payments to acquire business	$ 25,000

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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Operating Loss Carryforwards [Line Items]
Provisional income tax expense (benefit) due to change in tax rate								$ 16,900
Income tax expense	$ 11,715	$ (946)	$ (1,943)	$ 2,982	$ (2,889)	$ 8,826	$ 11,384
Valuation allowance increase (decrease)						7,900
Unrecognized tax benefits that would impact effective tax rate								1,100
Unrecognized tax benefits	2,900					2,900		1,100
Deferred federal and state deferred tax expense (benefit)	12,900			1,900		8,900	7,300
Federal and state current income taxes	100			200		500	2,600
Provision for foreign tax	(1,600)			700		(800)	2,300
Foreign deferred tax expense (benefit)	$ (300)			$ (200)		$ (200)	$ 800
Amount of net operating loss carry-forwards available to offset future U.S. federal taxable income								236,300
Amount of net operating loss carry-forwards available to offset future state taxable income								168,300
Loss carry-forwards available to future foreign taxable income								26,700
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Deferred tax assets, capital loss carryforwards								3,400
Tax credit carryforward								17,600
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Deferred tax assets, capital loss carryforwards								1,400
Tax credit carryforward								12,300
CHINA
Operating Loss Carryforwards [Line Items]
Loss carry-forwards available to future foreign taxable income								700
NETHERLANDS
Operating Loss Carryforwards [Line Items]
Loss carry-forwards available to future foreign taxable income								12,600
United Kingdom
Operating Loss Carryforwards [Line Items]
Loss carry-forwards available to future foreign taxable income								13,200
SINGAPORE
Operating Loss Carryforwards [Line Items]
Loss carry-forwards available to future foreign taxable income								200
Adjustment
Operating Loss Carryforwards [Line Items]
Worthless stock loss								$ 78,000
Income tax expense		(2,596)	(4,560)		(7,156)
Originally Filed
Operating Loss Carryforwards [Line Items]
Income tax expense		$ 1,650	$ 2,617		$ 4,267

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Severance and Other Exit Costs - Additional Information (Detail)		1 Months Ended		3 Months Ended	8 Months Ended	9 Months Ended
	Feb. 09, 2016 position	Jan. 31, 2018 position	Jan. 31, 2017 position	Sep. 30, 2018 USD ($)	Sep. 30, 2018 USD ($) position	Sep. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
Employee Severance
Restructuring Cost and Reserve [Line Items]
Severance costs incurred						$ 2,978,000
Accrued reserve				$ 1,000,000	$ 1,000,000	1,000,000	$ 3,668,000
Payments for restructuring						5,646,000
Facilities Closing
Restructuring Cost and Reserve [Line Items]
Facilities charge						43,000
Accrued reserve				4,290,000	$ 4,290,000	4,290,000	$ 6,005,000
Payments for restructuring						2,080,000
Sublease income received						322,000
2018 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | position		71			95
Severance costs incurred				100,000		3,000,000
2018 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Accrued reserve				600,000	$ 600,000	600,000
Payments for restructuring				600,000		2,400,000
2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | position			660
Severance costs incurred				0		0
2017 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Accrued reserve				400,000	400,000	400,000
Payments for restructuring				500,000		3,300,000
2017 Restructuring Plan | Facilities Closing
Restructuring Cost and Reserve [Line Items]
Facilities charge				0		200,000
Accrued reserve				0	0	0
Payments for restructuring				0		100,000
2016 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | position	265
2016 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Accrued reserve				0	0	0
Constant Contact, Inc. | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | position			50
Email Marketing | Facilities Closing
Restructuring Cost and Reserve [Line Items]
Facilities charge				100,000		200,000
Accrued reserve				4,300,000	$ 4,300,000	4,300,000
Payments for restructuring				$ 500,000		$ 1,500,000

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Severance and Other Exit Costs - Summary of Aggregate Activity Related to Company's Facilities Exit Costs Accrual and Severance Accrual (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($)
Employee Severance
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 3,668
Severance charges	2,978
Cash paid	(5,646)
Ending Balance	1,000
Facilities Closing
Restructuring Reserve [Roll Forward]
Beginning Balance	6,005
Facility adjustments	43
Sublease income received	322
Cash paid	(2,080)
Ending Balance	$ 4,290

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Severance and Other Exit Costs - Summary of Total Restructuring Charges Recorded in the Consolidated Statements of Operations and Comprehensive Loss (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 197	$ 4,489	$ 3,021	$ 14,584
Cost of revenue
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	37	449	1,443	3,892
Sales and marketing
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	17	1,011	133	3,260
Engineering and development
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	33	271	389	1,349
General and administrative
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 110	$ 2,758	$ 1,056	$ 6,083

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Commitments and Contingencies - Additional Information (Detail)			3 Months Ended		9 Months Ended
	Jun. 30, 2017 USD ($)	Aug. 07, 2015 defendant	Sep. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)
Loss Contingencies [Line Items]
Minimum revenue requirement from single customer per year	$ 500
Legal settlement reserve			$ (935,000)		$ 7,325,000	$ 0
Machado vs Endurance and McGee vs Constant Contact
Loss Contingencies [Line Items]
Legal settlement reserve				$ 8,500,000
Loss contingency accrual			$ 7,300,000		$ 7,300,000		$ 8,300,000
Constant Contact, Inc. | McGee vs Constant Contact
Loss Contingencies [Line Items]
Number of defendants | defendant		2

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Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 09, 2015	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Prepaid expenses and other current assets		$ 27,101		$ 27,101		$ 29,327
Amount included in accounts receivable		$ 14,105		$ 14,105		15,945
Former Chief Executive Officer
Related Party Transaction [Line Items]
Common stock outstanding ownership percentage		5.00%		5.00%
Immediate Family Member of Management or Principal Owner
Related Party Transaction [Line Items]
Amount included in accounts payable and accrued expense		$ 2,200		$ 2,200		1,500
Related party transaction expense		3,800	$ 3,850	12,185	$ 11,100
Chief Executive Officer and a Director
Related Party Transaction [Line Items]
Amount included in accounts payable and accrued expense		1,200		1,200		1,300
Prepaid expenses and other current assets		100		100		200
Amount included in accounts receivable		1,000		1,000		700
Related party transaction expense		$ 540	$ 950	2,555	$ 2,250
Goldman, Sachs & Co.
Related Party Transaction [Line Items]
Related party transaction expense				$ 300		$ 500
Interest rate cap period	3 years
Interest Rate Cap Premium | Goldman, Sachs & Co.
Related Party Transaction [Line Items]
Amounts of related party transaction							$ 3,000

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Related Party Transactions - Summary of Related Party Transactions (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Related Party Transaction [Line Items]
Revenue	$ (283,770)	$ (295,222)	$ (862,896)	$ (882,617)
Sales and marketing	63,831	66,276	197,733	211,154
Engineering and development	22,683	19,882	64,559	60,393
General and administrative	25,693	51,269	95,212	130,929
Immediate Family Member of Management or Principal Owner
Related Party Transaction [Line Items]
Cost of revenue	3,330	3,100	10,555	9,100
Sales and marketing	160	500	605	1,000
Engineering and development	290	200	960	850
General and administrative	20	50	65	150
Total related party transaction expense, net	3,800	3,850	12,185	11,100
Chief Executive Officer and a Director
Related Party Transaction [Line Items]
Revenue	(1,430)	(1,050)	(4,075)	(2,150)
Revenue (contra)	1,800	1,850	6,140	4,050
Total related party transaction impact to revenue	370	800	2,065	1,900
Cost of revenue	170	150	490	350
Total related party transaction expense, net	$ 540	$ 950	$ 2,555	$ 2,250

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Segment Information - Additional Information (Details) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2017 Segment	Sep. 30, 2018 Segment	Dec. 31, 2017 USD ($) Segment	Sep. 30, 2017 Segment	Dec. 31, 2016 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment		3		2
Web Presence
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	2		2
Gross Profit | Reclassification of Expenses Between Segments | Web Presence
Segment Reporting Information [Line Items]
Reclassification between segments			$ (6.9)		$ (3.0)
Gross Profit | Reclassification of Expenses Between Segments | Domain
Segment Reporting Information [Line Items]
Reclassification between segments			6.9		3.0
EBITDA | Reclassification of Expenses Between Segments | Web Presence
Segment Reporting Information [Line Items]
Reclassification between segments			(6.9)		(3.0)
EBITDA | Reclassification of Expenses Between Segments | Domain
Segment Reporting Information [Line Items]
Reclassification between segments			$ 6.9		$ 3.0

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Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended	9 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Revenue	$ 283,770			$ 295,222		$ 862,896	$ 882,617
Gross profit	154,825			136,357		469,299	428,420
Net loss	(6,335)	$ 627	$ (2,528)	(40,264)	$ (1,901)	(8,236)	(107,257)
Interest expense, net	37,238			35,645		111,203	120,516
Income tax expense	11,715	$ (946)	$ (1,943)	2,982	$ (2,889)	8,826	11,384
Depreciation	11,889			13,571		36,753	40,733
Amortization of other intangible assets	26,177			35,347		77,890	104,554
Stock-based compensation	7,550			19,580		21,932	48,749
Restructuring expenses	197			4,489		3,021	14,584
Transaction expenses and charges	0			0		0	773
(Gain) loss of unconsolidated entities				(33)		2	(72)
Impairment of other long-lived assets				14,448			14,448
SEC investigations reserve				8,000			8,000
Shareholder litigation reserve	(935)					7,325	0
Adjusted EBITDA	87,496			93,765		258,716	256,412
Intercompany revenue	2,500			2,500		7,600	8,100
Web Presence
Segment Reporting Information [Line Items]
Revenue	149,871			159,530		457,603	483,661
Gross profit	75,074			77,032		225,149	229,186
Net loss	(7,565)			(20,403)		(20,549)	(67,226)
Interest expense, net	18,132			14,686		53,503	50,877
Income tax expense	6,136			798		960	12,645
Depreciation	8,401			9,399		24,769	27,401
Amortization of other intangible assets	11,941			14,884		35,812	44,431
Stock-based compensation	1,569			15,510		12,066	38,023
Restructuring expenses	54			3,468		1,654	8,944
Transaction expenses and charges							0
(Gain) loss of unconsolidated entities				(33)		2	(72)
Impairment of other long-lived assets				600			600
SEC investigations reserve				4,323			4,323
Shareholder litigation reserve	(768)					4,780	0
Adjusted EBITDA	37,900			43,232		112,997	119,946
Email Marketing
Segment Reporting Information [Line Items]
Revenue	102,111			101,526		306,712	298,401
Gross profit	71,356			65,286		214,909	188,181
Net loss	6,596			2,202		22,350	(8,026)
Interest expense, net	17,128			20,514		50,866	68,212
Income tax expense	4,179			1,323		8,009	(4,821)
Depreciation	2,538			3,233		9,090	10,632
Amortization of other intangible assets	13,384			18,770		39,716	55,697
Stock-based compensation	4,472			1,668		7,168	5,392
Restructuring expenses	141			682		723	4,743
Transaction expenses and charges							773
(Gain) loss of unconsolidated entities				0		0	0
Impairment of other long-lived assets				0			0
SEC investigations reserve				2,751			2,751
Shareholder litigation reserve	0					1,500	0
Adjusted EBITDA	48,438			51,143		139,422	135,353
Domain
Segment Reporting Information [Line Items]
Revenue	31,788			34,166		98,581	100,555
Gross profit	8,395			(5,961)		29,241	11,053
Net loss	(5,366)			(22,063)		(10,037)	(32,005)
Interest expense, net	1,978			445		6,834	1,427
Income tax expense	1,400			861		(143)	3,560
Depreciation	950			939		2,894	2,700
Amortization of other intangible assets	852			1,693		2,362	4,426
Stock-based compensation	1,509			2,402		2,698	5,334
Restructuring expenses	2			339		644	897
Transaction expenses and charges							0
(Gain) loss of unconsolidated entities				0		0	0
Impairment of other long-lived assets				13,848			13,848
SEC investigations reserve				926			926
Shareholder litigation reserve	(167)					1,045	0
Adjusted EBITDA	$ 1,158			$ (610)		$ 6,297	$ 1,113

XML

Segment Information - Schedule of Error Correction (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended	9 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Gross profit	$ 154,825			$ 136,357		$ 469,299	$ 428,420
Net loss	(6,335)	$ 627	$ (2,528)	(40,264)	$ (1,901)	(8,236)	(107,257)
Adjusted EBITDA	87,496			93,765		258,716	256,412
Web Presence
Segment Reporting Information [Line Items]
Gross profit	75,074			77,032		225,149	229,186
Net loss	(7,565)			(20,403)		(20,549)	(67,226)
Adjusted EBITDA	37,900			43,232		112,997	119,946
Domain
Segment Reporting Information [Line Items]
Gross profit	8,395			(5,961)		29,241	11,053
Net loss	(5,366)			(22,063)		(10,037)	(32,005)
Adjusted EBITDA	$ 1,158			(610)		$ 6,297	1,113
(as reported)
Segment Reporting Information [Line Items]
Net loss		$ (1,969)	$ (7,088)		$ (9,057)
(as reported) | Web Presence
Segment Reporting Information [Line Items]
Gross profit				75,097			224,300
Net loss				(22,416)			(73,346)
Adjusted EBITDA				41,297			115,060
(as reported) | Domain
Segment Reporting Information [Line Items]
Gross profit				(4,026)			15,939
Net loss				(20,050)			(25,885)
Adjusted EBITDA				$ 1,325			$ 5,999

XML

Supplemental Guarantor Financial Information - Additional Information (Details)	3 Months Ended
	Dec. 31, 2016 USD ($) guarantor	Feb. 29, 2016 USD ($)
Guarantor Obligations [Line Items]
Number of guarantors sold | guarantor	2
Notes
Guarantor Obligations [Line Items]
Senior notes		$ 350,000,000.0
Interest rate, stated percentage		10.875%
CardStar | Guarantor Subsidiaries
Guarantor Obligations [Line Items]
Proceeds from sale of assets	$ 100,000

XML

Supplemental Guarantor Financial Information - Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 89,674			$ 66,493
Restricted cash	1,832			2,625
Accounts receivable	14,105			15,945
Prepaid domain name registry fees	57,114			53,805
Prepaid commissions	41,744			0
Prepaid expenses and other current assets	27,101			29,327
Total current assets	231,570			168,195
Intercompany receivables, net	0			0
Property and equipment—net	79,315			95,452
Goodwill	1,849,264			1,850,582
Other intangible assets—net	377,670			455,440
Investment in subsidiaries	0			0
Prepaid commissions, net of current portion	42,081			0
Other assets	38,503			31,417
Total assets	2,618,403			2,601,086
Current liabilities:
Accounts payable	10,812			11,058
Accrued expenses and other current liabilities	89,066			108,479
Deferred revenue	380,564			361,940
Current portion of notes payable	31,606			33,945
Current portion of capital lease obligations	7,595			7,630
Deferred consideration, short-term	2,386			4,365
Total current liabilities	522,029			527,417
Long-term deferred revenue	96,419			90,972
Notes payable	1,792,436			1,858,300
Capital lease obligations—long term	2,067			7,719
Deferred consideration	1,342			3,551
Other long-term liabilities	47,512			30,122
Total liabilities	2,461,805	$ 2,482,950	$ 2,529,059	2,518,081
Equity	156,598	154,915	148,749	83,005
Total liabilities and stockholders’ equity	2,618,403	$ 2,637,865	$ 2,677,808	2,601,086
Reportable Legal Entities | Parent
Current assets:
Cash and cash equivalents	207			92
Restricted cash	0			0
Accounts receivable	0			0
Prepaid domain name registry fees	0			0
Prepaid commissions	0
Prepaid expenses and other current assets	0			(12)
Total current assets	207			80
Intercompany receivables, net	34,278			33,637
Property and equipment—net	0			0
Goodwill	0			0
Other intangible assets—net	0			0
Investment in subsidiaries	122,114			49,288
Prepaid commissions, net of current portion	0
Other assets	0			0
Total assets	156,599			83,005
Current liabilities:
Accounts payable	0			0
Accrued expenses and other current liabilities	0			0
Deferred revenue	0			0
Current portion of notes payable	0			0
Current portion of capital lease obligations	0			0
Deferred consideration, short-term	0			0
Total current liabilities	0			0
Long-term deferred revenue	0			0
Notes payable	0			0
Capital lease obligations—long term	0			0
Deferred consideration	0			0
Other long-term liabilities	0			0
Total liabilities	0			0
Equity	156,599			83,005
Total liabilities and stockholders’ equity	156,599			83,005
Reportable Legal Entities | Issuer
Current assets:
Cash and cash equivalents	2			2
Restricted cash	0			0
Accounts receivable	0			0
Prepaid domain name registry fees	0			0
Prepaid commissions	0
Prepaid expenses and other current assets	174			86
Total current assets	176			88
Intercompany receivables, net	441,001			606,834
Property and equipment—net	0			0
Goodwill	0			0
Other intangible assets—net	0			0
Investment in subsidiaries	1,510,592			1,355,013
Prepaid commissions, net of current portion	0
Other assets	9,742			3,639
Total assets	1,961,511			1,965,574
Current liabilities:
Accounts payable	0			0
Accrued expenses and other current liabilities	15,197			24,509
Deferred revenue	0			0
Current portion of notes payable	31,606			33,945
Current portion of capital lease obligations	0			0
Deferred consideration, short-term	0			0
Total current liabilities	46,803			58,454
Long-term deferred revenue	0			0
Notes payable	1,792,436			1,858,300
Capital lease obligations—long term	0			0
Deferred consideration	0			0
Other long-term liabilities	158			(468)
Total liabilities	1,839,397			1,916,286
Equity	122,114			49,288
Total liabilities and stockholders’ equity	1,961,511			1,965,574
Reportable Legal Entities | Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	59,890			54,473
Restricted cash	1,731			2,472
Accounts receivable	11,906			12,386
Prepaid domain name registry fees	32,729			28,291
Prepaid commissions	41,085
Prepaid expenses and other current assets	18,361			20,062
Total current assets	165,702			117,684
Intercompany receivables, net	(354,298)			(498,213)
Property and equipment—net	66,772			81,693
Goodwill	1,673,851			1,673,851
Other intangible assets—net	376,441			450,778
Investment in subsidiaries	74,478			37,200
Prepaid commissions, net of current portion	41,346
Other assets	22,351			21,373
Total assets	2,066,643			1,884,366
Current liabilities:
Accounts payable	10,239			9,532
Accrued expenses and other current liabilities	69,493			75,819
Deferred revenue	330,178			309,395
Current portion of notes payable	0			0
Current portion of capital lease obligations	7,595			7,630
Deferred consideration, short-term	2,386			4,365
Total current liabilities	419,891			406,741
Long-term deferred revenue	86,133			81,199
Notes payable	0			0
Capital lease obligations—long term	2,067			7,719
Deferred consideration	1,342			3,551
Other long-term liabilities	46,618			30,143
Total liabilities	556,051			529,353
Equity	1,510,592			1,355,013
Total liabilities and stockholders’ equity	2,066,643			1,884,366
Reportable Legal Entities | Non-Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	29,575			11,926
Restricted cash	101			153
Accounts receivable	2,199			3,559
Prepaid domain name registry fees	24,385			25,514
Prepaid commissions	659
Prepaid expenses and other current assets	8,566			9,191
Total current assets	65,485			50,343
Intercompany receivables, net	(120,981)			(142,258)
Property and equipment—net	12,543			13,759
Goodwill	175,413			176,731
Other intangible assets—net	1,229			4,662
Investment in subsidiaries	0			0
Prepaid commissions, net of current portion	735
Other assets	6,410			6,405
Total assets	140,834			109,642
Current liabilities:
Accounts payable	573			1,526
Accrued expenses and other current liabilities	4,376			8,151
Deferred revenue	50,386			52,545
Current portion of notes payable	0			0
Current portion of capital lease obligations	0			0
Deferred consideration, short-term	0			0
Total current liabilities	55,335			62,222
Long-term deferred revenue	10,286			9,773
Notes payable	0			0
Capital lease obligations—long term	0			0
Deferred consideration	0			0
Other long-term liabilities	736			447
Total liabilities	66,357			72,442
Equity	74,477			37,200
Total liabilities and stockholders’ equity	140,834			109,642
Eliminations
Current assets:
Cash and cash equivalents	0			0
Restricted cash	0			0
Accounts receivable	0			0
Prepaid domain name registry fees	0			0
Prepaid commissions	0
Prepaid expenses and other current assets	0			0
Total current assets	0			0
Intercompany receivables, net	0			0
Property and equipment—net	0			0
Goodwill	0			0
Other intangible assets—net	0			0
Investment in subsidiaries	(1,707,184)			(1,441,501)
Prepaid commissions, net of current portion	0
Other assets	0			0
Total assets	(1,707,184)			(1,441,501)
Current liabilities:
Accounts payable	0			0
Accrued expenses and other current liabilities	0			0
Deferred revenue	0			0
Current portion of notes payable	0			0
Current portion of capital lease obligations	0			0
Deferred consideration, short-term	0			0
Total current liabilities	0			0
Long-term deferred revenue	0			0
Notes payable	0			0
Capital lease obligations—long term	0			0
Deferred consideration	0			0
Other long-term liabilities	0			0
Total liabilities	0			0
Equity	(1,707,184)			(1,441,501)
Total liabilities and stockholders’ equity	$ (1,707,184)			$ (1,441,501)

XML

Supplemental Guarantor Financial Information - Consolidated Statements of Operations and Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended	9 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Revenue	$ 283,770			$ 295,222		$ 862,896	$ 882,617
Cost of revenue	128,945			158,865		393,597	454,197
Gross profit	154,825			136,357		469,299	428,420
Operating expense:
Sales and marketing	63,831			66,276		197,733	211,154
Engineering and development	22,683			19,882		64,559	60,393
General and administrative	25,693			51,269		95,212	130,929
Transaction costs							773
Total operating expense	112,207			137,427		357,504	403,249
(Loss) income from operations	42,618			(1,070)		111,795	25,171
Interest expense and other income, net	37,238			36,245		111,203	121,116
(Loss) income before income taxes and equity earnings of unconsolidated entities	5,380	$ (344)	$ (4,444)	(37,315)	$ (4,788)	592	(95,945)
Income tax expense	11,715	(946)	(1,943)	2,982	(2,889)	8,826	11,384
Loss before equity earnings of unconsolidated entities	(6,335)	602	(2,501)	(40,297)	(1,899)	(8,234)	(107,329)
Equity (income) loss of unconsolidated entities, net of tax	0	(25)	27	(33)	2	2	(72)
Net loss	(6,335)	627	(2,528)	(40,264)	(1,901)	(8,236)	(107,257)
Net loss attributable to non-controlling interest	0			0			7,524
Net loss attributable to Endurance International Group Holdings, Inc.	(6,335)			(40,264)		(8,236)	(114,781)
Comprehensive income (loss):
Foreign currency translation adjustment	(644)	(2,425)	580	1,070	(1,845)	(2,489)	2,984
Unrealized gain on derivative	812	144	1,041	83	1,184	1,996	(309)
Total comprehensive (loss) income	(6,167)	$ (1,654)	$ (907)	(39,111)	$ (2,562)	(8,729)	(112,106)
Eliminations
Income Statement [Abstract]
Revenue	(1,348)			(1,782)		(4,710)	(4,510)
Cost of revenue	(1,348)			(1,334)		(4,710)	(3,642)
Gross profit	0			(448)		0	(868)
Operating expense:
Sales and marketing	0			0		0	(3)
Engineering and development	0			0		0	0
General and administrative	0			(605)		0	(605)
Transaction costs							0
Total operating expense	0			(605)		0	(608)
(Loss) income from operations	0			157		0	(260)
Interest expense and other income, net	0			0		0	0
(Loss) income before income taxes and equity earnings of unconsolidated entities	0			157		0	(260)
Income tax expense	0			0		0	0
Loss before equity earnings of unconsolidated entities	0			157		0	(260)
Equity (income) loss of unconsolidated entities, net of tax	17,460			(58,817)		106,794	(138,647)
Net loss	(17,460)			58,974		(106,794)	138,387
Net loss attributable to non-controlling interest							0
Net loss attributable to Endurance International Group Holdings, Inc.	(17,460)			58,974		(106,794)	138,387
Comprehensive income (loss):
Foreign currency translation adjustment	0			0		0	0
Unrealized gain on derivative	0			0		0	0
Total comprehensive (loss) income	(17,460)			58,974		(106,794)	138,387
Parent Company | Reportable Legal Entities
Income Statement [Abstract]
Revenue	0			0		0	0
Cost of revenue	0			0		0	0
Gross profit	0			0		0	0
Operating expense:
Sales and marketing	0			0		0	0
Engineering and development	0			0		0	0
General and administrative	(11)			0		(11)	0
Transaction costs							0
Total operating expense	(11)			0		(11)	0
(Loss) income from operations	11			0		11	0
Interest expense and other income, net	0			0		0	0
(Loss) income before income taxes and equity earnings of unconsolidated entities	11			0		11	0
Income tax expense	0			0		0	0
Loss before equity earnings of unconsolidated entities	11			0		11	0
Equity (income) loss of unconsolidated entities, net of tax	6,346			40,422		8,247	106,999
Net loss	(6,335)			(40,422)		(8,236)	(106,999)
Net loss attributable to non-controlling interest							0
Net loss attributable to Endurance International Group Holdings, Inc.	(6,335)			(40,422)		(8,236)	(106,999)
Comprehensive income (loss):
Foreign currency translation adjustment	0			0		0	0
Unrealized gain on derivative	0			0		0	0
Total comprehensive (loss) income	(6,335)			(40,422)		(8,236)	(106,999)
Issuer | Reportable Legal Entities
Income Statement [Abstract]
Revenue	0			0		0	0
Cost of revenue	0			0		0	0
Gross profit	0			0		0	0
Operating expense:
Sales and marketing	0			0		0	0
Engineering and development	0			0		0	0
General and administrative	52			56		169	166
Transaction costs							0
Total operating expense	52			56		169	166
(Loss) income from operations	(52)			(56)		(169)	(166)
Interest expense and other income, net	37,305			35,661		111,051	120,313
(Loss) income before income taxes and equity earnings of unconsolidated entities	(37,357)			(35,717)		(111,220)	(120,479)
Income tax expense	(8,891)			(13,201)		(26,470)	(44,512)
Loss before equity earnings of unconsolidated entities	(28,466)			(22,516)		(84,750)	(75,967)
Equity (income) loss of unconsolidated entities, net of tax	(22,120)			17,906		(76,503)	31,033
Net loss	(6,346)			(40,422)		(8,247)	(107,000)
Net loss attributable to non-controlling interest							0
Net loss attributable to Endurance International Group Holdings, Inc.	(6,346)			(40,422)		(8,247)	(107,000)
Comprehensive income (loss):
Foreign currency translation adjustment	0			0		0	0
Unrealized gain on derivative	812			83		1,996	(309)
Total comprehensive (loss) income	(5,534)			(40,339)		(6,251)	(107,309)
Guarantor Subsidiaries | Reportable Legal Entities
Income Statement [Abstract]
Revenue	258,388			266,985		783,611	788,806
Cost of revenue	110,808			139,044		338,885	392,447
Gross profit	147,580			127,941		444,726	396,359
Operating expense:
Sales and marketing	60,341			61,376		187,175	195,392
Engineering and development	20,524			17,412		58,850	51,053
General and administrative	24,187			50,353		124,317	123,736
Transaction costs							773
Total operating expense	105,052			129,141		370,342	370,954
(Loss) income from operations	42,528			(1,200)		74,384	25,405
Interest expense and other income, net	74			756		539	1,150
(Loss) income before income taxes and equity earnings of unconsolidated entities	42,454			(1,956)		73,845	24,255
Income tax expense	22,020			15,494		35,897	54,744
Loss before equity earnings of unconsolidated entities	20,434			(17,450)		37,948	(30,489)
Equity (income) loss of unconsolidated entities, net of tax	(1,686)			456		(38,554)	543
Net loss	22,120			(17,906)		76,502	(31,032)
Net loss attributable to non-controlling interest							7,524
Net loss attributable to Endurance International Group Holdings, Inc.	22,120			(17,906)		76,502	(38,556)
Comprehensive income (loss):
Foreign currency translation adjustment	0			0		0	0
Unrealized gain on derivative	0			0		0	0
Total comprehensive (loss) income	22,120			(17,906)		76,502	(38,556)
Non-Guarantor Subsidiaries | Reportable Legal Entities
Income Statement [Abstract]
Revenue	26,730			30,019		83,995	98,321
Cost of revenue	19,485			21,155		59,422	65,392
Gross profit	7,245			8,864		24,573	32,929
Operating expense:
Sales and marketing	3,490			4,900		10,558	15,765
Engineering and development	2,159			2,470		5,709	9,340
General and administrative	1,465			1,465		(29,263)	7,632
Transaction costs							0
Total operating expense	7,114			8,835		(12,996)	32,737
(Loss) income from operations	131			29		37,569	192
Interest expense and other income, net	(141)			(172)		(387)	(347)
(Loss) income before income taxes and equity earnings of unconsolidated entities	272			201		37,956	539
Income tax expense	(1,414)			689		(601)	1,152
Loss before equity earnings of unconsolidated entities	1,686			(488)		38,557	(613)
Equity (income) loss of unconsolidated entities, net of tax	0			0		18	0
Net loss	1,686			(488)		38,539	(613)
Net loss attributable to non-controlling interest							0
Net loss attributable to Endurance International Group Holdings, Inc.	1,686			(488)		38,539	(613)
Comprehensive income (loss):
Foreign currency translation adjustment	(644)			1,070		(2,489)	2,984
Unrealized gain on derivative	0			0		0	0
Total comprehensive (loss) income	$ 1,042			$ 582		$ 36,050	$ 2,371

XML

Supplemental Guarantor Financial Information - Condensed Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2018	Mar. 31, 2018	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	$ 51,341	$ 52,360	$ 82,252	$ 133,593	$ 128,866
Cash flows from investing activities:
Purchases of property and equipment				(22,343)	(32,095)
Proceeds from note receivable					0
Proceeds from sale of property and equipment				6	292
Purchases of intangible assets				0	(1,966)
Net cash used in investing activities				(22,337)	(33,769)
Cash flows from financing activities:
Proceeds from issuance of term loan and notes, net of original issue discounts				1,580,305	1,693,007
Repayment of notes payable and revolver				(1,656,094)	(1,733,147)
Payment of financing costs				(1,580)	(6,304)
Payment of deferred consideration				(4,500)	(5,408)
Payment of redeemable non-controlling interest liability				0	(25,000)
Principal payments on capital lease obligations				(5,609)	(5,679)
Proceeds from exercise of stock options				756	1,548
Intercompany loans and investments				0	0
Net cash used in financing activities				(86,722)	(80,983)
Net effect of exchange rate on cash and cash equivalents and restricted cash				(2,146)	2,156
Net increase in cash and cash equivalents and restricted cash				22,388	16,270
Cash and cash equivalents and restricted cash:
Beginning of period		69,118	69,118	69,118	56,898
End of period	91,506			91,506	73,168
Eliminations
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities				0	0
Cash flows from investing activities:
Purchases of property and equipment				0	0
Proceeds from note receivable					0
Proceeds from sale of property and equipment				0	0
Purchases of intangible assets					0
Net cash used in investing activities				0	0
Cash flows from financing activities:
Proceeds from issuance of term loan and notes, net of original issue discounts				0	0
Repayment of notes payable and revolver				0	0
Payment of financing costs				0	0
Payment of deferred consideration				0	0
Payment of redeemable non-controlling interest liability					0
Principal payments on capital lease obligations				0	0
Proceeds from exercise of stock options				0	0
Intercompany loans and investments				0	0
Net cash used in financing activities				0	0
Net effect of exchange rate on cash and cash equivalents and restricted cash				0	0
Net increase in cash and cash equivalents and restricted cash				0	0
Cash and cash equivalents and restricted cash:
Beginning of period		0	0	0	0
End of period	0			0	0
Parent Company | Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities				0	(32)
Cash flows from investing activities:
Purchases of property and equipment				0	0
Proceeds from note receivable					0
Proceeds from sale of property and equipment				0	0
Purchases of intangible assets					0
Net cash used in investing activities				0	0
Cash flows from financing activities:
Proceeds from issuance of term loan and notes, net of original issue discounts				0	0
Repayment of notes payable and revolver				0	0
Payment of financing costs				0	0
Payment of deferred consideration				0	0
Payment of redeemable non-controlling interest liability					0
Principal payments on capital lease obligations				0	0
Proceeds from exercise of stock options				756	1,548
Intercompany loans and investments				(641)	(1,058)
Net cash used in financing activities				115	490
Net effect of exchange rate on cash and cash equivalents and restricted cash				0	0
Net increase in cash and cash equivalents and restricted cash				115	458
Cash and cash equivalents and restricted cash:
Beginning of period		92	92	92	3
End of period	207			207	461
Issuer | Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities				(88,464)	(72,687)
Cash flows from investing activities:
Purchases of property and equipment				0	0
Proceeds from note receivable					0
Proceeds from sale of property and equipment				0	0
Purchases of intangible assets					0
Net cash used in investing activities				0	0
Cash flows from financing activities:
Proceeds from issuance of term loan and notes, net of original issue discounts				1,580,305	1,693,007
Repayment of notes payable and revolver				(1,656,094)	(1,733,147)
Payment of financing costs				(1,580)	(6,304)
Payment of deferred consideration				0	0
Payment of redeemable non-controlling interest liability					0
Principal payments on capital lease obligations				0	0
Proceeds from exercise of stock options				0	0
Intercompany loans and investments				165,833	119,128
Net cash used in financing activities				88,464	72,684
Net effect of exchange rate on cash and cash equivalents and restricted cash				0	0
Net increase in cash and cash equivalents and restricted cash				0	(3)
Cash and cash equivalents and restricted cash:
Beginning of period		2	2	2	4
End of period	2			2	1
Guarantor Subsidiaries | Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities				180,852	204,768
Cash flows from investing activities:
Purchases of property and equipment				(22,159)	(28,140)
Proceeds from note receivable					0
Proceeds from sale of property and equipment				6	292
Purchases of intangible assets					(1,932)
Net cash used in investing activities				(22,153)	(29,780)
Cash flows from financing activities:
Proceeds from issuance of term loan and notes, net of original issue discounts				0	0
Repayment of notes payable and revolver				0	0
Payment of financing costs				0	0
Payment of deferred consideration				(4,500)	(4,550)
Payment of redeemable non-controlling interest liability					(25,000)
Principal payments on capital lease obligations				(5,609)	(5,679)
Proceeds from exercise of stock options				0	0
Intercompany loans and investments				(143,914)	(124,060)
Net cash used in financing activities				(154,023)	(159,289)
Net effect of exchange rate on cash and cash equivalents and restricted cash				0	0
Net increase in cash and cash equivalents and restricted cash				4,676	15,699
Cash and cash equivalents and restricted cash:
Beginning of period		56,945	56,945	56,945	41,654
End of period	61,621			61,621	57,353
Non-Guarantor Subsidiaries | Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used in) provided by operating activities				41,205	(3,183)
Cash flows from investing activities:
Purchases of property and equipment				(184)	(3,955)
Proceeds from note receivable					0
Proceeds from sale of property and equipment				0	0
Purchases of intangible assets					(34)
Net cash used in investing activities				(184)	(3,989)
Cash flows from financing activities:
Proceeds from issuance of term loan and notes, net of original issue discounts				0	0
Repayment of notes payable and revolver				0	0
Payment of financing costs				0	0
Payment of deferred consideration				0	(858)
Payment of redeemable non-controlling interest liability					0
Principal payments on capital lease obligations				0	0
Proceeds from exercise of stock options				0	0
Intercompany loans and investments				(21,278)	5,990
Net cash used in financing activities				(21,278)	5,132
Net effect of exchange rate on cash and cash equivalents and restricted cash				(2,146)	2,156
Net increase in cash and cash equivalents and restricted cash				17,597	116
Cash and cash equivalents and restricted cash:
Beginning of period		$ 12,079	$ 12,079	12,079	15,237
End of period	$ 29,676			$ 29,676	$ 15,353