Canonical Tag Checker

Verify canonical tags on any webpage to prevent duplicate content issues and ensure search engines index the correct version. Canonical tags tell Google which URL is the preferred one when multiple versions exist. Need help implementing them? Check out schema markup tools or join the community.

1

Enter your URL

Paste the webpage URL you want to check for canonical tag implementation.

2

Run the analysis

The tool fetches the page and scans for canonical link elements in the HTML head.

3

Review results

Get detailed feedback on canonical tag presence, validity, and potential SEO issues.

Check Canonical Tags

Why Canonical Tags Matter for SEO

Canonical tags solve duplicate content problems by telling search engines which version of a URL is the "master" copy. Without them, Google might split ranking signals across multiple similar pages, diluting your SEO authority.

Always use absolute URLs in canonical tags, ensure they point to indexable pages, and avoid canonicalizing to redirects. Combine canonical tags with robots.txt and meta robots tags for comprehensive crawl control.

Related Technical SEO Tools

Enhance your site's crawlability and avoid indexing issues:

Meta Tag Analyzer
Check all meta tags including robots directives and descriptions. Robots.txt Checker
Verify crawler access and ensure important URLs remain indexable. Schema Markup Validator
Validate structured data that complements canonical tags.