Canonical Checker
Proxy-fetch HTML, extract link rel=canonical, normalize both sides, and report match status.
All processing on this page runs locally in your browser unless noted otherwise.
No results yet — paste input and run.
How to use
- Paste the page URL you expect.
- Probe via proxy when available.
- See match / mismatch / missing and the raw tag snippet.
FAQ
How is equality decided?
Host is lowercased, default ports removed, trailing slashes trimmed for comparison.
Can I share my input?
Yes via Copy share link. Long payloads may omit the body from the URL.