How to fix seo facet url not canonicalized on Adobe Commerce (Magento)
Add a canonical tag pointing filtered and sorted category URLs back to the clean (unfiltered) category page URL to prevent duplicate content and crawl waste.
Steps for Adobe Commerce (Magento)
- In the Admin, go to Stores → Configuration → Catalog → Catalog → Search Engine Optimization.
- Set 'Use Canonical Link Meta Tag for Categories' to **Yes** — this instructs Magento to output a canonical on category pages pointing to the clean category URL, overriding layered navigation filter parameters.
- Also set 'Use Canonical Link Meta Tag for Products' to **Yes** for product pages.
- Clear the Magento cache: System → Cache Management → Flush Magento Cache.
- If you use third-party layered navigation extensions (e.g., Amasty Layered Navigation, Mirasvit Layered Navigation), check the extension's configuration for its own canonical URL settings — these extensions often have independent canonical controls that must also be enabled.
- Verify in a browser by navigating to a filtered category URL (with layered nav parameters), viewing page source, and confirming `<link rel='canonical'>` points to the base category URL without filter parameters.
<link rel="canonical" href="https://www.example.com/category-page/" />What is seo facet url not canonicalized?
When shoppers filter or sort your product listings — for example, by size, color, price, or usage — your store generates new URLs with query parameters or path segments (e.g., `/apparel/?color=red&size=M`). These filtered pages show essentially the same category with a narrowed-down product set. A canonical tag is a small snippet of HTML code placed in the `<head>` of a page that tells Google: "This page is a variation — the *real*, authoritative version is over here." Without it, Google sees dozens or hundreds of near-duplicate pages and has to figure out on its own which one to rank.
Every filtered or sorted URL that lacks a canonical tag is a potential duplicate page in Google's index. This splits your ranking signals (links, authority) across many weak versions instead of concentrating them on one strong category page. Google's crawl budget — the number of pages it will crawl on your site in a given period — gets burned on hundreds of low-value filter combinations instead of your important product and category pages, meaning new products and pages may be discovered and indexed more slowly. In competitive niches, consolidated ranking signals can be the difference between page 1 and page 2. Fixing this is one of the highest-leverage technical SEO changes a store with faceted navigation can make.
See the complete Seo facet url not canonicalized guide for every platform and the full background.
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