HTTP Status

http(s) URL

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How it works

The server requests the URL, follows redirects up to a fixed limit and reports each step’s status code and headers.

Safeguards & responsible use

  • Server-side input validation: only syntactically valid hostnames and IP addresses are accepted.
  • Private, loopback, link-local and reserved address ranges are blocked to protect internal infrastructure.
  • Per-client rate limiting and request timeouts.
  • Only http and https URLs; limited redirects and response size.

Frequently asked questions

What is the difference between 301 and 302?

301 is a permanent redirect that search engines transfer ranking to; 302 is temporary.

Why does my browser show a different result?

Some sites vary responses by location, cookies or user agent, and our request comes from a server.