Canonical URLs: A Beginner’s Guide to Canonical Tags [Guide]
Canonical URLs are used to indicate the preferred version of a webpage when multiple URLs have similar or identical content. They help search engines avoid duplicate content issues, improving SEO by consolidating ranking signals to a single URL.
Semrush has published ‘Canonical URLs: A Beginner’s Guide to Canonical Tags’.
Rachel Handley says, “Canonical tags are a valuable deduplication tool. They can resolve issues with duplicate content (or near-identical pages) you need to keep.
For example:
- American English and British English versions of the same page
- Parameterized URLs (e.g., listing pages with filters or sorting options applied)
Why avoid duplicate content?
Because it can cause keyword cannibalization. This occurs when multiple pages on a site compete for the same keywords. And harm each other’s rankings in the process.”
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