HTTP Header Inspector
Fetch and display server response headers, plus request headers we send.
How to Inspect HTTP Headers?
- Enter a URL in the input field (must include https:// or http://).
- Select the HTTP method (GET or HEAD).
- Click Inspect to fetch and display headers.
- View response status, final URL after redirects, cache headers, and all response headers in JSON format.
HTTP Response Header Inspector
View the complete HTTP response headers returned by any URL. HTTP headers control caching, security policies, content type, redirects, and more — but browsers hide them from regular users. This tool makes them visible so you can debug, audit, and optimize your web server configuration.
Key Headers to Check
- Cache-Control / ETag / Last-Modified — Diagnose caching behavior and browser cache efficiency
- Content-Security-Policy — Verify XSS and injection protection policies
- Strict-Transport-Security (HSTS) — Confirm HTTPS enforcement
- X-Frame-Options / X-Content-Type-Options — Check clickjacking and MIME-sniffing protections
- Location — Inspect redirect targets and chains
Supports both GET and HEAD requests. Also shows the final URL after any redirects.
