Canonical Tag SEO
Google SEO – Matt Cutts from Google shares tips on the new rel=”canonical” meta tag that the 3 top search engines now support.
Google, Yahoo!, and Microsoft have all agreed to work together in a “joint effort to help reduce duplicate content for larger, more complex sites, and the result is the new Canonical Tag”.
Example Canonical Tag From Google Webmaster Central blog:
<link rel="canonical" href="http://www.example.com/product.php?item=swedish-fish" />
You can put this link tag in the head section of the duplicate content urls, if you think you need it.
Written by Shaun Anderson
can any body briefly define why canonical tags are used for?