What is PageRank? under Rankings and algorithms
PageRank is a link analysis algorithm patented and used by Google. It used to be the foundation of the search engine algorithm. Nowadays, it’s one of many factors used to determine the importance of a website. It uses a number of links referring to each webpage, to decide what rank it will have on the search engine results page.
PageRank is measured on a scale of one to ten and assigned to individual pages within a website. In order to increase your ranking in search engines, you need to get new backlinks. The best way to do that, is by publishing valuable content.