"Google search algorithm" redirects here. For other search algorithms used by Google, see Google Penguin. For other search algorithms used by Google, see Google Panda.
Mathematical check Page Rank for a simple network, expressed as
percentages. (Google uses a logarithmic scale.) Page C has a higher
PageRank than Page E, even though there are fewer links to C; the one
link to C comes from an important page and hence is of high value. If
web surfers who start on a random page have an 85% likelihood of
choosing a random link from the page they are currently visiting, and a
15% likelihood of jumping to a page chosen at random from the entire
web, they will reach Page E 8.1% of the time. (The 15% likelihood of
jumping to an arbitrary page corresponds to a damping factor of 85%.)
Without damping, all web surfers would eventually end up on Pages A, B,
or C, and all other pages would have PageRank zero. In the presence of
damping, Page A effectively links to all pages in the web, even though
it has no outgoing links of its own.
The name "PageRank" is a trademark of Google, and the PageRank process has been patented (U.S. Patent 6,285,999). However, the patent is assigned to Stanford University and not to Google. Google has exclusive license rights on the patent from Stanford University. The university received 1.8 million shares of Google in exchange for use of the patent; the shares were sold in 2005 for $336 million.[2][3]
The value of incoming links is colloquially referred to as "Google juice"... Source: Pagerank Check Pagerank Check Page Rank Check Google Pagerank Google Pagerank