How to use canonical links?

Answer

jimlynch
Vote Up (9)

This article has some useful information about canonical links.

Canonical link element
http://en.wikipedia.org/wiki/Canonical_link_element

"A canonical link element is an HTML element that helps webmasters prevent duplicate content issues by specifying the "canonical", or "preferred", version of a web page[1][2] as part of search engine optimization. It is described in RFC 6596, which went live in April 2012.
Duplicate content issues occur when the same content is accessible from multiple URLs.[3] For example, http://www.example.com/page.html would be considered by search engines to be an entirely different page to http://www.example.com/page.html?parameter=1, even though both URLs return the same content. Another example is essentially the same (tabular) content, but sorted differently."

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