How to Fix Missing Canonical Tag
No canonical tag, so duplicate or parameterised URLs may all compete.
Symptoms you'll see
A canonical tag declares the single preferred URL for a page. Without it, Google may index multiple near-identical URLs and split authority.
Why it happens
Missing canonicals cause duplicate content, cannibalisation, and wasted crawl budget — especially on sites with query parameters or sorting.
Step-by-step fix
Add a self-referencing canonical to every indexable page, and point duplicates to the preferred URL. Keep canonicals consistent with sitemaps and internal links.
How SEO Surgeon catches it
Our engine flags pages likely missing or mis-pointing canonicals and suggests the correct canonical for each.
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