Google Information for Webmasters

         How does Google rank pages?

1. The basics
Google's order of results is automatically determined by more than 100 factors, including our PageRank algorithm. Due to the nature of our business and our interest in protecting the integrity of our search results, this is the only information we make available to the public about our ranking system.

2. Why does my page's rank keep changing?
We update our index every four weeks. Each time we update our database¸