Alexa computes traffic rankings by analyzing the Web usage of millions of Alexa Toolbar users and data obtained from other, diverse traffic data sources. The information is sorted, sifted, anonymized, counted, and computed, until, finally, we get the traffic rankings shown in the Alexa service. The process is relatively complex, but if you have a need to know, please read on.
Source:
http://www.alexa.com/site/help/traffic_learn_more
Babu Reviewed by Babu on . What is Alexa ranking? What is the usefulness of alexa ranking? all webmaster trying to increase their alexa site ranking. but why? Rating: 5