HTTP Headers Checker
Inspect the response headers, status, and redirects of any URL.
Inspect HTTP Response Headers
Enter a URL and this tool makes a request server-side and shows the full HTTP response: the status code, response time, every redirect along the way, and all response headers the server sends.
What you can check
- The final status code and response time
- The complete redirect chain
- Caching, security, and content headers
- Server and CDN identification headers
Headers worth watching
Look for security headers like Strict-Transport-Security and Content-Security-Policy, caching headers like Cache-Control and ETag, and the Content-Type that tells browsers how to handle the response.
Why check headers?
Response headers control caching, security, compression, and redirects. Inspecting them helps you debug why a page isn't cached, confirm HTTPS and security policies are in place, and trace unexpected redirect loops.
Server-side for accuracy
Because browsers hide many cross-origin response headers from JavaScript, the request is made server-side. That returns the complete, unfiltered header set exactly as the origin server sent it.
Frequently Asked Questions
Common questions about the HTTP Headers Checker.