Testly

A comprehensive suite of tools for testing HTTP requests and responses, with standard utilities and Fastly-specific features. Built on Fastly's edge computing platform.

Available Now

HTTP Utilities

Essential HTTP testing utilities for development and debugging

Cache control headers /utilities/cache-control-headers
Set cookies /utilities/set-cookies
Log request headers /utilities/log-request-headers
Response delay /utilities/delay?q={seconds}
Generate response headers /utilities/gen-response-headers
Upload /utilities/upload

Fastly Features

Fastly-specific capabilities and edge computing features

Pragma headers test /fastly_features/x-tb-headers
Edge Side Includes /fastly_features/esi
Dynamic compression /fastly_features/dynamic_compression

Coming Soon

NGWAF Testing

Next-Gen WAF integration testing

WAF rules Coming Soon
Rate limiting Coming Soon

Coming Soon

Fastly Features

Advanced Fastly platform capabilities

Websockets Coming Soon
Client Challenges Coming Soon
JWT Coming Soon
Waiting Room Coming Soon
And more... Coming Soon

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See the Docs

View complete documentation for all available features with usage examples, parameters, and response formats.

View Documentation