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Canonical tag generator
Enter the preferred URL and any alternate versions. The tool writes the canonical tag for the preferred page and alternate tags for the variants, ready to paste into the head.
head tags
What canonical tags do
A canonical tag tells search engines which URL is the one to index when several URLs show the same content. It is a strong signal, not an absolute order, and it must point at a URL that returns 200.
The rule
Every page carries one canonical: either self-referencing or pointing at the preferred version. The alternates in this tool are the canonical tags the variant pages should carry.