Different PR with and without www.

Hi,
I have noticed something very strange since the last PR update -
I got different PR with and without www. on many domains.
To be more specific I got PR0 without www. and got PR2 or PR3 on the same domain with www.

For example checkout this domain: LOGIROUTE d0000tC000m

It drives me crazy !!
How can I know what is the real PR ?
When it should be the same PR with and without www. ?

Thanks in advanced,
Tom

 

You should 301 redirect the non www to the www version, or vice versa.

Have a search in http://www.google.co.uk/support/forum/p/Webmasters/label?lid=41234c84d9491af8&hl=en

 

Google considers both as separate sites...get that 301 in place!

 

Thanks, I did the 301 redirection using htaccess file, it very helpful.
But how did this thing happen from the beginning ?

 

Its not just google, but

subdomian www.example.com is entirely different from naked domain example.com and the same with any subdomain like blog.example.com or wwww.example.com or wwwww.example.com or w.example.com

Its just a convention to use these 2 addresses one on another. But you can have two separate websites on these 2 websites. And hence google also gives a separate PR for both addresses.

If you have PR2 for www and PR0 for naked domain (with out www). Redirect naked domain to www, google will show both addresses with PR2. And if you redirect www to naked domain, google shows both PR0.

 

yes i also looked over that, but dmssrinivas gave nice information