same page, such as https://example.com/?dress=1234 and https://example.com/dresses/1234, Google chooses one as canonical. Note that the pages do not need to be absolutely identical; minor changes in sorting or filtering of list pages do not make the page unique (for example, sorting by price or filtering by item color).

The canonical can be in a different domain than a duplicate.

Internet

With the help of canonical URLs, a search engine knows which link should be provided in a query result.

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