Page importance is all about links - their quantity, quality, and strength, which we will
discuss later on. This part of the algorithm includes Google PageRank (PR).
Google looks for links that point to your site from other websites. Google believes a
link from website A to website B is a “vote” for the importance of website B. In this
way, other websites add votes for your website, which in turn helps increase a pages
PageRank value on your site. Each page on your site has a PR value. Usually the
PR value is the highest for the home page as most people will link to your home
page rather than another page on your site.
The more web pages that link to your site, and the more important in turn those
pages are, the more important Google thinks your site is and hence the higher your
PageRank value. Moreover, it is the quality, as well as the quantity, of links that