A method and system for determining a ranking of web sites based on an aggregation of rankings of the web pages within the web sites is provided. A ranking system identifies for each web site a stationary distribution of a stochastic complement of the transition probabilities between web pages of the web site. The ranking system then calculates transition probabilities between web sites based on the web page transition probabilities weighted by the stationary distribution of the stochastic complements. The ranking system then calculates the stationary distribution of the transition probabilities of the web sites to represent a ranking of the web sites.