Google PageRank evaluates and scores your page’s external and internal links, and is one of Google’s oldest and well-known ranking algorithms. The PageRank algorithm is a link analysis program that evaluates the links on (and backlinks to) a page as a part of Google’s search ranking factors. The goal of PageRank’s evaluations is to push not only the most relevant but the most authoritative pages on a given subject to the top of the search engine results pages (SERPs).