Contains a token to validate API clients..

Fastly reads this header from requests. It is proprietary to Fastly.

This header is used as part of authenticating requests to the Fastly API. It has no special meaning outside of

User contributed notes

We welcome comments that add use cases, ideas, tips, and caveats. All comments will be moderated before publication. To post support questions, visit our support center and we'll find you the help you need.