U+URLClinic
Find the canonical URL

Canonical URL Checker

Find a page’s declared canonical URL and compare it with the requested and final destination URLs.

Public HTTP/HTTPS URLs only. Private networks and non-standard ports are blocked.

Compare requested, final and canonical URLs

A canonical tag tells search engines which version of a page the publisher prefers. URLClinic extracts the declared canonical and compares it with the URL you entered and the final redirected URL.

How it helps

The tool does not decide which canonical strategy is correct for your site, but it makes mismatches visible so they can be reviewed.

How URLClinic approaches the check

URLClinic uses a Cloudflare Worker to request only public HTTP or HTTPS destinations. Redirects are followed manually so each hop can be validated and shown. Response content is size-limited, private network targets are blocked, and the tool avoids forwarding browser cookies or authentication headers to the destination.

The result is designed for practical decisions. It combines raw technical details with plain-language findings and links to related actions such as cleaning, recovery, Rescue Links, monitoring and QR generation.

Limitations you should know

Some websites block automated requests or serve different content to automated clients. A timeout or 403 therefore does not always mean a link is broken. URLClinic also does not execute a full browser session for every analysis, so JavaScript-only content may expose less metadata than a normal browser view.

FAQ

Common questions

Does URLClinic guarantee that a URL is safe?

No. URLClinic reports technical URL and response-level signals. A low-risk result is not proof that a website is trustworthy, malware-free or controlled by the person you expect.

Can URLClinic scan private networks?

No. Local, loopback, link-local and common private IP ranges are blocked, and only standard web ports 80 and 443 are supported.

Does URLClinic store every URL I check?

Ordinary one-off analyses are not intentionally stored in the application database. In the Direct Upload edition, ordinary analyses are not stored in an application database. Signed Rescue Links and shared reports carry only the minimum data required to work, and watchlist items are saved in your browser. See the Privacy Policy for details.