This page contains more than one link rel="canonical". Because a page can only have one preferred URL, search engines treat conflicting canonicals as unreliable and commonly ignore all of them, which leaves you with the duplicate content problem the tag was meant to solve. Two tags usually means a template and a plugin, or a CMS and a theme, each adding their own.
Two canonical tags disagree about which URL is preferred:
<link rel="canonical" href="https://example.com/guides/running-shoes">
<link rel="canonical" href="https://example.com/guides/running-shoes?ref=nav">Find which component emits each tag and leave exactly one:
<link rel="canonical" href="https://example.com/guides/running-shoes">A single unambiguous canonical is one a search engine can act on. Two conflicting ones are usually discarded, leaving the page with no canonical at all.
This issue can affect your site's search engine rankings and user experience. Addressing it promptly helps ensure optimal performance and visibility in search results.
bseoa automatically checks for this warning during site analysis, along with hundreds of other technical SEO issues.
Choose the license that fits your needs and start getting the deep, actionable insights you deserve.