Exhibit 21.1

Subsidiaries of Fastly, Inc.

Name of Subsidiary	Jurisdiction of Organization
Fastly Australia Pty Ltd	Australia
Fastly Cloud Iberica S.L.	Spain
Fastly GmbH	Germany
Fastly India Private Limited	India
Fastly International (Holdings) Limited	United Kingdom
Fastly International Technology Limited	United Kingdom
Fastly Kabushiki Kaisha	Japan
Fastly Limited	United Kingdom
Signal Sciences, LLC	Delaware, United States