PageRank is a numeric value that represents how important a page is on the web. Page Rank of a website is a asset for a site owner, because if a site has a larger page rank it will be more visible in search engines and can get more visitors. Google figures that when one page links to another page, it is effectively casting a vote for the other page. The more votes that are cast for a page, the more important the page must be. Also, the importance of the page that is casting the vote determines how important the vote itself is. Google calculates a page's importance from the votes cast for it. How important each vote is is taken into account when a page's PageRank is calculated.

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