HTTP Header Viewer
Inspect the raw HTTP response headers of any URL.
Free online HTTP header viewer. Enter a URL to see the final status code and every response header in a clean table, with security headers highlighted and a copy-all button. The request runs server-side so CORS never gets in the way.
How to use the HTTP Header Viewer
- 01Enter the URL you want to inspect.
- 02Click Get headers to fetch the response.
- 03Scan the header table or copy them all at once.
Frequently asked questions
Which security headers does it highlight?
It flags Strict-Transport-Security, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and the Cross-Origin-* headers so you can spot what's missing.
Does it follow redirects?
Yes. It follows redirects to the final URL and shows the headers returned there, along with the final status code.