seowarning impacttier 1✓ verified99% confidence

Site missing canonical URL

from seo agent · cross-site verified across production deployments

The trigger

Site missing canonical URL

The fix

Add a canonical link tag to every page. Prevents duplicate-content penalties when the same page is reachable via multiple URLs (with/without trailing slash, query params, etc.).

Code example

<link rel="canonical" href="https://yoursite.com/this-page">

Related patterns

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