Plugins for specifying canonical URLs for SEO

| February 24, 2009 | Leave a Comment

The almighty Google has come out with guidelines for dealing with duplicate content by specifying a canonical URLs (preferred URLs) in the <head> of a webpage, like so:

Now, you can simply add this tag to specify your preferred version:

<link rel="canonical" href="http://www.example.com/product.php?item=swedish-fish" />

inside the <head> section of the duplicate content URLs:

http://www.example.com/product.php?item=swedish-fish&category=gummy-candy
http://www.example.com/product.php?item=swedish-fish&trackingid=1234&sessionid=5678

Since WordPress generates webpages dynamically, it’s best to comply with this SEO practice with plugins. WordPress Garage lists two you can try out, and I’ve added one more from the Plugin Directory:

See also Matt Cutts’s post and presentation and the Google Webmasters Help page on Canonical URLs.

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