Canonical Tag Checker
Validate canonical tags and detect conflicts between HTML and HTTP headers
How It Works
Enter URL
Submit the URL you want to check for canonical tags
Scan Sources
We check both HTML meta tags and HTTP Link headers for canonical URLs
Detect Issues
Identify conflicts, invalid formats, and canonical best practice violations
Get Report
Receive detailed analysis with recommendations for fixing any issues found
Common Use Cases
Essential for proper canonical tag implementation. Need other web tools? Check out RhymeCraft
Prevent duplicate content penalties by ensuring proper canonical tags on all pages with similar content.
Verify canonical tags on paginated content point to the correct view-all or primary page.
Check product pages with filter/sort parameters have proper canonicals to the main product page.
Ensure mobile URLs correctly reference desktop versions (or vice versa) with canonical tags.
Validate canonical tags on localized content don't conflict with hreflang implementation.
Detect conflicts between HTML link tags and HTTP header canonicals across your entire site.