HTTP Headers Checker

Inspect status codes, redirects, response headers, cache behavior, security headers, content type, and compression for a public URL.

Enter a public URL to inspect its response headers.

Redirect chain

Status URL Time
No check has been run yet.

Security headers

Response headers

Header Value
No headers to show yet.

Redirect diagnostics

Follow 301, 302, 303, 307, and 308 redirects and review each hop status, location, and response time bucket.

Header review

Inspect cache-control, expires, ETag, content type, content encoding, server, CDN, and security header signals.

Public URL safety

The checker blocks credentials, unsafe ports, localhost, private IPs, link-local ranges, and reserved network targets.

Frequently Asked Questions

Which URLs can I check?

You can check public http and https URLs on standard web ports. Private, local, reserved, and internal network targets are blocked.

Does the checker follow redirects?

Yes. Redirects are followed manually up to a small bounded limit, and each redirect target is validated before another request is made.

Are full target URLs sent to analytics?

No. Analytics events use safe buckets such as scheme, status range, redirect count, header count, and failure reason.

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HTTP Headers Checker

Request a public HTTP or HTTPS URL and report its redirect chain, status, and response headers.

Input
One public HTTP or HTTPS URL.
Output
The bounded redirect chain and returned response headers.
Real limitations
Private networks and unsafe destinations are blocked; sites can vary by user agent, geography, cookies, or time, and bodies are not a full browser rendering.
Privacy and data handling
one public HTTP or HTTPS URL is sent to Convertr and, when required, the named upstream data service. Do not submit secrets or private URLs. The page does not claim that remote results are complete, permanent, or private to the upstream provider.

How to use this tool

  1. Enter one public HTTP or HTTPS URL and choose the available filters.
  2. Start the lookup and wait for the remote response.
  3. Review the bounded redirect chain and returned response headers; export it only when the page provides an export action.

Common failure modes

DNS failure, TLS error, timeout, redirect loop, blocked address, or too many redirects stops the check.

Useful example

Check https://example.com to review its final status, content type, cache headers, and redirects.