PR3 from no where

[Bobby_Davro]

I was just helping a colleague with the concepts of PR, backward links and cached pages. He pointed out a weird situation to me. He has a main site and a subdomain of that site, set up very recently (just a few weeks old).

The main site is cached and has a PR0, since it hasn't got any incoming links yet. The subdomain, which also doesn't have any incoming links already has a real PR3.

I have searched for any pages that contain the subdomain (none), checked that the page is cached properly (it is).

The only possible explanation that I can think of is that there has been a link to the page that was spidered in the main crawl, and thus used for PR calculation, and that the page has since been dropped by Freshbot. However, this seems a little unlikely.

Any other ideas about how to generate a PR3 apparently from nothing?

[Xylem]

My domain was PR3 to start with also. I think google gives you that to start with.

Anyone know for sure?

[jon80]

Xylem:

New sites start with a PR of 0.
Any value shown on the toolbar is an initial guess.
The real value will show up after the first crawl and subsequent update.
Get a few external links if you want higher PR.

[futureX]

does the main site point to the subdomain?