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HTTP Header Checker
NEWInspect the HTTP response headers returned by any URL.
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Frequently asked questions
Does it follow redirects to show me the final destination's headers?
No — the fetch is made with redirects disabled, so if the URL redirects, you'll see that redirect response itself (a 301/302 status and its Location header) rather than the headers from wherever it points to.
If I leave off https://, does it still check the exact path I typed?
Not quite — without a protocol prefix, only the hostname is used for the actual request, so a value like "example.com/some-page" ends up checking the site's root instead of that specific page. Include the full https://example.com/some-page to check a particular path.
Why does this run as a server-side check instead of directly in my browser?
Browsers block JavaScript from reading most response headers on a cross-origin request — there's no way around that purely client-side, so the request happens on our server and the result is passed back to you.
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