HTTP Headers Checker
Response headers, redirect chain, security header grade, robots.txt, and sitemap checks.
About this tool
Request the HTTPS homepage for a public domain and review how the server responds — including redirects, security headers, and common site files.
What you get
- Redirect chain from the hostname you entered to the final URL
- Security header grade (HSTS, CSP, X-Frame-Options, and more)
- Full response headers as collapsible JSON
- robots.txt preview and sitemap reachability
How to use
Enter a domain and fetch headers. Only check hosts you are allowed to probe.
FAQ
How to check HTTP response headers?
Enter a URL to fetch the response and review status, redirect chain, and headers in a structured view with optional raw JSON.
What security headers should a website have?
The grade covers HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and related headers with pass or missing flags.
How to see redirect chain for a URL?
Each hop shows status code and location so you can debug www/non-www, HTTP→HTTPS, and trailing-slash loops.
How to check robots.txt and sitemap?
The tool fetches robots.txt and sitemap references for the host so you can confirm crawl rules and index discovery paths.
By using this tool you agree to our Terms of Use and Privacy Policy. Results are provided as-is without warranty.