Page Rank is a system that is all about links and is used to rank web pages. This system was developed by Google founders Larry Page and Sergey Brin at Stanford University. The PageRank of the web page is a vote of authority. This authority can be passed to other pages or websites through internal and external links. It measures the importance of your web pages based on the quantity and the equality of the links that are pointing to them.
Page Rank is still currently used as part of Google’s algorithm, but be sure to focus on earning topically relevant links from websites that are held in high authority.