Docs · Technical SEO
Canonical URLs
Page has a canonical URL
What this check looks at
Optia checks for a <link rel="canonical"> tag declaring the page's preferred URL.
Why it matters
The same content is often reachable at several URLs (with/without trailing slash, tracking parameters, http vs https). A canonical tag consolidates those variants into one indexed URL so ranking signals aren't split across duplicates.
How to fix it
- Add
<link rel="canonical" href="https://example.com/page">to every indexable page — self-referencing is correct for unique pages. - Use the absolute, preferred-protocol URL and keep it consistent with your sitemap.
- Point variant pages (filtered, paginated, UTM-tagged) at their primary version.