Verifies the implementation of canonical tags to prevent duplicate content.
A canonical tag (`<link rel='canonical'>`) is a piece of HTML code that tells search engines which version of a URL is the 'master' or preferred version when multiple URLs have the same or very similar content.
It's the standard way to solve duplicate content issues. It consolidates your SEO signals (like links) into a single URL, preventing them from being split across multiple pages.
Without canonical tags, search engines might get confused, index the wrong page, or split your ranking authority among duplicate versions.
<head>
<link rel="canonical" href="https://www.yourdomain.com/preferred-page-url" />
</head>Run a free audit to see how your site performs on Canonical URL and 159 other checks.
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