In Google, the page rank score is the used for ranking for every query. If you got a highest score, then you rank high in the query.
The Page rank of a web page is calculated by forming a citation (link) graph of the web page in the Internet. This page rank gives an objective measure of its citation importance that represents well with what people's subjective idea of pages' importance in the Internet. With this intuitive idea, page rank can be considered as a model of user behavior of the Internet community.
The page rank of the page is calculated as follows:
We assume page A has pages T1....Tn which point to it (i.e., are citations). The parameter d is a damping factor which can be set between 0 and 1. We usually set d to 0.85. Also C(A) is defined as the number of links going out of page A. The PageRank of a page A is given as follows:
PR(A) = (1-d) + d(PR(T1)/C(T1) + .... + PR(Tn)/C(Tn))
It's features
FAQ of Page Rank
