PageRank extends this idea by not counting inbound links from all pages Similarly, and by normalizing by the amount of inbound links over a page. PageRank is outlined as follows: They changed it in 2006 with the algorithm that provides approximately-very similar final results but is drastically faster to compute. https://erickmooon.blogmazing.com/22487362/not-known-factual-statements-about-page-rank-in-seo