The name PageRank is a trademark of Google. PageRank was developed at Stanford University by Larry Page (hence the name Page-Rank) and later Sergey Brin as part of a research project about a new kind of search engine. The project started in 1995 and led to a functional prototype, named Google, in 1998. Shortly after, Page and Brin founded Google Inc., the company behind the Google search engine. While just one of many factors which determine the ranking of Google search results, PageRank continues to provide the basis for all of Google's web search tools.

Alexa computes traffic rankings by analyzing the Web usage of millions of Alexa Toolbar users based on reach and pageviews. Check the Google Page Rank and Alexa Rank of your website.