HTTP Headers Checker

Inspect what a server really returns for any URL. Enter an address and get the final HTTP status code, the complete redirect chain, and every response header — useful for debugging redirects, caching, content types and security headers. No login required.

How to use

  1. Type or paste a full URL such as https://example.com. If you omit the scheme, http:// is assumed.
  2. Press Check headers. The tool follows up to five redirects to the final destination.
  3. Read the final status code, walk the redirect chain hop by hop, and scan the response headers in the table.

Why use it

Checking raw HTTP headers is the quickest way to confirm a redirect actually lands where you expect, that a page returns 200 instead of a silent 404 or 500, that caching and content-type headers are set correctly, and that security headers such as Strict-Transport-Security and Content-Security-Policy are present. Because the tool reports the whole redirect chain, you can also catch wasteful extra hops and redirect loops that slow down both users and crawlers.

Frequently asked questions

What do HTTP status codes mean?
The status code is a three-digit number the server returns for your request. 2xx means success (200 OK), 3xx means a redirect (301 Moved Permanently, 302 Found, 308 Permanent Redirect), 4xx means a client error (404 Not Found, 403 Forbidden), and 5xx means a server error (500 Internal Server Error, 503 Service Unavailable).
How does the redirect chain work?
When a URL responds with a 3xx status it points to another location, and the browser follows it. This tool follows up to five redirects and lists every hop in order, so you can spot redirect loops, unnecessary extra hops, or a chain that ends on the wrong page.
Which security headers should I look for?
Useful response headers to verify include Strict-Transport-Security (HSTS), Content-Security-Policy, X-Content-Type-Options, X-Frame-Options and Referrer-Policy. Their presence and values tell you how well a site is hardened against common attacks.
Is this HTTP headers checker free?
Yes. The HTTP headers checker is free with no login and no credit card. For SERP and keyword data at scale, see the Kwinside API.

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