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HTTP Header Checker
View the HTTP response headers of any URL.
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How to use the HTTP Header Checker
- 1Enter a full URL (including https://).
- 2Click Check headers.
- 3Read the status code and every response header the server sends.
About the HTTP Header Checker
Free HTTP header checker — see the full HTTP response headers, status code, server software and security headers returned by any URL. Great for debugging and SEO.
Part of our Web & Network collection. Browse all tools.
Frequently asked questions
- Is it free to use?
- Yes, it's 100% free with no sign-up and no limits.
- What can I use this for?
- Debugging caching and redirects, checking security headers (HSTS, CSP, X-Frame-Options), confirming content types, and seeing what web server and status code a URL returns.
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