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HTTP Header Checker

A reference for the HTTP response headers that matter for SEO (status code, X-Robots-Tag, cache-control, content-type) plus a link to a live header inspector, since reading real response headers requires a server-side request this browser tool can't make.

How to Use HTTP Header Checker
  1. 1Copy the URL you want to inspect
  2. 2Paste it above for reference
  3. 3Check it with httpstatus.io or your browser DevTools Network tab
  4. 4Confirm status code, X-Robots-Tag, and Content-Type match what you expect
Frequently Asked Questions

No — reading real headers means making an HTTP request to the server, which a client-side tool can't do. Use httpstatus.io or your browser's Network tab (DevTools) for the actual headers.

The status code (200/301/404/etc.), X-Robots-Tag (can noindex a page even without a meta tag), Content-Type, and Cache-Control/Last-Modified for crawl efficiency.

Open Chrome DevTools → Network tab → reload the page → click the request → view Response Headers. Or run curl -I https://yoursite.com/page from a terminal.

It can be set at the server/CDN level (e.g. in Nginx/Apache config or a CDN rule) and silently blocks indexing even if the page's HTML looks fine.

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