HTTP Headers Checker

View the HTTP response headers of any URL: status code, caching, security headers, X-Robots-Tag and more.

How to use the HTTP Headers Checker

  1. Enter a URL (with or without https://). For a bulk check, add one URL per line.
  2. Pick a user agent (desktop, mobile or Googlebot).
  3. Click the button to follow the URL hop by hop.
  4. Read every status code, the final URL and the warnings about chains, loops and temporary redirects.

About this tool

View the HTTP response headers of any URL: status code, caching, security headers, X-Robots-Tag and more. It is part of the free SEO & Web Tools collection on Online Tools Harbor.

Frequently asked questions

What is the difference between a 301 and a 302 redirect?

A 301 (or 308) is permanent: search engines move ranking signals to the new URL. A 302 (or 307) is temporary: the old URL stays indexed. Use 301 when a page has moved for good.

Why are redirect chains bad?

Each extra hop slows the page and wastes crawl budget. Point old URLs directly at the final destination.

Is the HTTP Headers Checker free?

Yes. The HTTP Headers Checker is completely free to use, with no sign-up and no limits on normal use.

Does it work on mobile?

Yes, it works in any modern browser on phones, tablets and computers. No app to install.

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