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Canonical URL Checker

Verify canonical URL tags

About Canonical URL Checker

Check canonical URL implementation for any page. Verify that canonical tags are properly set up to avoid duplicate content issues and consolidate SEO signals.

Frequently Asked Questions

What is a canonical URL?

A canonical URL (specified via rel=canonical link tag) tells search engines which version of a page is the 'master' copy when duplicate or similar content exists at multiple URLs. It consolidates ranking signals to one URL.

Can Google ignore my canonical tag?

Yes. Google treats canonical tags as hints, not directives. It may ignore them if the canonical points to a non-existent page, if the content differs significantly between URLs, or if other signals (internal links, sitemaps) contradict it.

Should every page have a self-referencing canonical?

Yes. Adding a self-referencing canonical tag (pointing to itself) on every page is a best practice. It prevents issues from URL parameters, tracking codes, or other variations that could create duplicate content.

How to Use Canonical URL Checker

  1. 1

    Enter your website URL or the resource to check

  2. 2

    Configure the Canonical URL Checker analysis parameters

  3. 3

    Run the technical analysis

  4. 4

    Review identified issues sorted by severity

  5. 5

    Implement fixes based on the prioritized recommendations

  6. 6

    Verify fixes by re-running the analysis

Why Use Canonical URL Checker?

Canonical URL Checker identifies invisible technical issues that silently suppress your search visibility. Technical SEO problems are the most common cause of unexplained ranking drops — a single misconfiguration can affect your entire site. Catch and fix issues before they impact your traffic.

Key Features

  • In-depth technical SEO diagnostics
  • Issue severity classification (critical/warning/notice)
  • Specific fix instructions for each issue
  • Before/after comparison capability
  • Export for development team handoff
  • Standards-compliant validation