Canonical Tag Checker

Verify if a URL declares its official primary address with a canonical tag.

How to Use Canonical Tag Checker

  1. 1. Enter a live URL to inspect.
  2. 2. Click "Verify Canonical" to test the server response and parse the head code.
  3. 3. Check if a canonical tag exists, retrieve its declared target URL, and verify if it matches the current page URL.

About Canonical Tag Checker

Canonical tags (`<link rel="canonical" href="...">`) protect your site from duplicate content penalties by indicating the single "authoritative" version of a page to Google. This is especially vital for pages with tracking queries or sorting parameters. This validator fetches any page to extract its canonical directive, verifying if it is present and self-referencing.

Canonical Tag Checker FAQ

What is the Canonical Tag Checker?

The Canonical Tag Checker is a free, professional SEO tool designed to help you verify if a url declares its official primary address with a canonical tag. It runs entirely in your browser for instant results and maximum privacy.

Why is validating technical SEO configurations important?

Technical issues like crawler blocks or invalid canonical targets can completely prevent search engines from indexation. The Canonical Tag Checker lets you verify robots directives and page metadata to discover and fix critical crawl errors.

Do I need to pay or sign up to use the Canonical Tag Checker?

No, the Canonical Tag Checker is 100% free with no registration, email sign-ups, or subscriptions required. You can access all our tools immediately to inspect, validate, and optimize your pages.

Is my data safe when using the Canonical Tag Checker?

Yes, your data is completely secure. The Canonical Tag Checker processes calculations directly within your local web browser, meaning your text inputs, raw URLs, and generated results are never stored on our servers.

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  • Meta Tag Extractor — Retrieve and inspect all existing meta tags on any live website URL using our server proxy.