Canonical Checker
The Canonical Checker inspects a page's canonical tag to ensure it points to the correct URL and detects chain or loop issues.
How to Use
- Go to /utilities/canonical-checker
- Enter a URL and click Check
- The tool fetches the page and follows the canonical chain
What the Results Show
- Declared canonical - The canonical URL specified in the page's
tag - Self-referencing - Whether the canonical points back to the same URL (which is correct practice)
- Chain detection - If the canonical target itself has a different canonical, the tool follows the chain and reports all hops
- Loop detection - Identifies circular canonical references that confuse search engines
- HTTP vs HTTPS - Flags mismatches between the page protocol and canonical protocol
- Trailing slash consistency - Checks whether the canonical URL matches the page URL's trailing slash convention
Correct canonical tags prevent duplicate content issues and consolidate ranking signals to the preferred URL.