U+URLClinic
Detect meaningful link changes

URL Change Detector

Track a URL fingerprint, title, status and final destination. In the zero-config Direct Upload edition, saved URLs are re-checked whenever you open the dashboard.

Zero-config watchlist: the URL is re-checked when you open the Dashboard. No background schedule or webhook is used in this edition.

Track meaningful URL changes over time

The watchlist compares the page fingerprint, final destination and health state with the baseline saved in your browser. In this Direct Upload edition, the comparison runs when you open the dashboard.

How it helps

This is intentionally lightweight: it is not a full visual webpage diff service, but it quickly tells you that a linked resource changed enough to deserve review.

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 processed on demand and are not intentionally stored in an application database in this edition. Rescue Links and shared reports use signed stateless tokens, while watchlist items are saved in your browser. See the Privacy Policy for details.