Ailurn

Free toolsHTTP header checker

Redirect & HTTP header checker

Trace redirect chains and review headers when you change lesson paths or course landing URLs.

Page or redirect URL
Follows redirects server-side and records status codes and headers—useful when migrating lesson or course URLs.

Frequently asked questions

What is this for?
When you move course pages or consolidate lesson URLs, you want clean redirects and predictable headers. This tool follows redirects and shows status codes and response headers at each hop.
Why might HEAD fail?
Some hosts only allow GET. We retry with GET when HEAD is not supported.
Can I test localhost?
No. Requests are limited to public hosts for safety—use your deployed staging URL instead.

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