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 Akamai
Technologies, Inc. (the "Company") for the period ended March 31, 2004 as filed
with the Securities and Exchange Commission on the date hereof (the "Report"),
the undersigned, George H. Conrades, Chief Executive Officer of the Company,
hereby certifies, pursuant to 18 U.S.C. Section 1350, that:

      (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 the
Company.

                                        /s/ George H. Conrades
                                        ---------------------------------------
Dated: May 10, 2004                     George H. Conrades
                                        Chief Executive Officer

A signed original of this written statement required by Section 906 has been
provided to Akamai Technologies, In. and will be retained by Akamai
Technologies, Inc. and furnished to the Securities and Exchange Commission or
its staff upon request.