See what the page declares, how it resolves, and whether its canonical target is healthy. This reports observable signals—not a claim about the canonical a search engine ultimately selects.
HTTP(S) only. Private/local network destinations are blocked by the server-side fetcher.
Use Canonical URL Checker when you need a practical result, not a complicated workflow. It keeps the main controls close to the input area so you can review, copy, and reuse the output with less back-and-forth.
01Enter one public page URL
02Run the live canonical diagnostic
03Review declarations, redirects, indexability and target evidence
✓HTML and HTTP canonical discovery
✓Requested/final URL and redirect-chain comparison
✓Self, alternate, cross-domain, missing and multiple canonical diagnostics
✓Noindex and canonical-target health with fix guidance