HTTP Header Analyzer

The HTTP Header Analyzer groups response headers into security, cache, CORS, content, server, and cookie sections so you can understand what a page or API response is telling browsers and clients.

Paste headers from DevTools or enter a public URL. URL checks use the ToolsFam proxy and may still depend on the upstream server exposing useful headers. For private, staging, localhost, or intranet systems, paste the headers manually instead.

The findings are intentionally plain-language. Missing headers are marked as review items, not panic warnings, because the right header set depends on whether you are checking a static page, API route, asset, redirect, or authenticated app.