HTTP Header Checker
Fetch any URL and inspect its response headers. We also grade the key security headers that protect visitors and help with SEO trust signals.
How to use the HTTP Header Checker
- 1Enter a URL.
- 2Press Run.
- 3Review the headers and fix missing security headers.
HTTP Header Checker FAQ
Strict-Transport-Security (HSTS), Content-Security-Policy, X-Content-Type-Options, X-Frame-Options and Referrer-Policy.
We follow up to 5 redirects and show the final response. Use the redirect checker to see each hop.