When a user enters a search query, the search engine’s number one goal is to return results that are high-quality, relevant and able to best give them what they want. One of the 200+ factors Google takes into consideration to determine which webpages best fit the bill is PageRank.

So what is PageRank? PageRank (PR) is a calculation, famously invented by Google founders Larry Page and Sergey Brin, which evaluates the quality and quantity of links to a webpage to determine a relative score of that page’s importance and authority on a 0 to 10 scale.

Read about how PageRank is earned and transferred.