Weird problem with google page rank

Strange google PR

[zardoz]

Hi
My site have two page rank rates, one it's 4PR when i'm typing the domain name without the www. and the other one is 1PR and it's when i'm typing the domain name with the www.
are you guy have any idea what can be the reason or what's my real PR?

[tantalus]

My guess would be that someone is linking to you without the www.

[trillianjedi]

Tanatlus' guess is correct.

Subdomain www.domain.com/index.* and root domain.com/index.* are two seperate pages as far as google is concerned.

PageRank is calculated on a per page basis - not per domain.

Your domain does not have PageRank, individual pages on your site do.

You can 301 redirect the www to the root, or vice-versa. There are loads of threads about this on here - try a search of WebmasterWorld for examples.

Personally, I'd leave it - it makes it harder for your competition to track your backlinks. Most inexperienced webmasters simply look for backlinks to www.domain.com, without realising that a site may have deeplinks and inbounds to other pages that they are not seeing (and could be targetting themselves).

TJ