what is page rank?

[sinelogixtech]

what is page rank?
 

[brandmedia]

PageRank is an algorithm used by the Google search engine to measure the authority of a webpage. While the details of PageRank are proprietary, it is generally believed that the number and importance of inbound links to that page are a significant factor.

[Optnation]

PageRank is a link analysis algorithm applied by Google.com that assigns a number or rank to each hyperlinked web page within the World Wide Web. The basic purpose of PageRank is to list web pages from the most important to the least important, reflecting on a search engine results page when a keyword search occurs.

[Simi123]

PageRank is an algorithm used by the Google search engine to measure the authority of a webpage. While the details of PageRank are proprietary, it is generally believed that the number and importance of inbound links to that page are a significant factor.

PageRank was the original concept behind the creation of Google. It is based loosely on the system of citation, where a paper referenced by many other papers is considered to be more authoritative/important than a paper with few citations. Given this line of thinking, a link to a site is similar to a citation in that it implies authority.