Help Google Help You (Deal With Duplicate Content)
Tuesday, February 17th, 2009
If you have any dynamic sites that can display the same information through a variety of URLs (e.g. “somepage.php?category=cats&story=123″ vs. “somepage.php?story=123&category=cats”), Google has provided a way for you to avoid the duplicate content issue by providing a “preferred link.”
Basically, you add a special link tag to the head of your page:
<link rel=”canonical” href=”somepage.php?category=cats&story=123″ />
When Google finds duplicate content, it will transfer the page ranks and index data to your preferred link.
Clap your hands and say yeah. You’re done.
Head on over to the Google Webmasters Central Blog for details on this tip.
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