Alexa is continually crawling all publicly-available websites to create a series of snapshots of the web. We use the data we collect to create features and services:Site Info: Traffic Ranks, search analytic s, demographics, and more
Related Links: Sites that are similar or relevant to the one you are currently viewing.
Alexa has been crawling the web since early 1996, and we have constantly increased the amount of information that we gather. We are currently gathering approximately 1.6 terabytes (1600 gigabytes) of web content per day. After each snapshot of the web (which take approximately two months to complete), Alexa has gathered 4.5 billion pages from over 16 million sites.To pro grammatically access Alexa's vast information about the Web, please visit Alexa Web Information Service.
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