HTTP header inspector
Inspect HTTP status, caching, policies and redirects for a public URL.
Fetching headers…
How to interpret
The tool uses HEAD, which may differ from GET. Inspect Cache-Control, Content-Type and Location at each step. Extra redirects add latency. Security headers alone do not prove complete protection, and a missing header alone does not prove a vulnerability. Every destination is revalidated and up to five redirects are followed.