Cannonical Url - No Duplicate Content worries

I noticed that Google Webmaster Central has announced that it contributes to a new tag rel=canonical, which allows the pages of your site URL in accordance with the canons. They declare, in all the good details on their blog, but in brief, if you have multiple versions of a page can use this tag to say that all these urls should now be the only one with the canon of SEOness and PageRank to that one URL.

Let's take an example of a site cars in india. Imagine that your preferred version of the URL looks like this:

http://www.cardekho.com/carmodels/Tata/Tata_Nano

However, users can access previously created Tata Nano page through other URLs also like :
http://www.cardekho.com/carmodels/Tata/Tata-Nano

<a href="http://www.site.com/page.html">

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

<link rel="canonical" href="http://www.cardekho.com/carmodels/Tata/Tata_Nano"/>

inside the <head> section of the duplicate content URLs:
http://www.cardekho.com/carmodels/Tata/Tata-Nano

And Google will understand that the duplicates all refer to the canonical URL:
http://www.cardekho.com/carmodels/Tata/Tata_Nano.
Additional URL properties, like PageRank and related signals, are transferred as well.
Posted by Charu Kishnani | Labels:
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