HTTP Headers Checker
Inspect status codes, redirects, response headers, cache behavior, security headers, content type, and compression for a public URL.
Redirect chain
| Status | URL | Aika |
|---|---|---|
| No check has been run yet. | ||
Security headers
Response headers
| Otsikko | Arvo |
|---|---|
| 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.