backlinks on external pages. PR is calculated on page basis nor domain It is also important hopw many link are placed on external page - PR is spread on all outbound links
This topic is already discussed extensively here => http://forums.digitalpoint.com/showthread.php?t=2182804
Please explain why this website which I set up about six months ago has now got a page rank of 4? It has got one back link of rank 4 which points to my homepage of my other website. Whereas I would normally agree with what you have all said, I simply cannot understand how the page rank has got this far in such a short period of time considering the lack of back links. There must be other factors that contribute to page rank http://www.wheellovedating.co.uk/