Alexa ranks websites based on a combined measure of page views and unique site users, and creates a list of most popular websites based on this ranking time-averaged over three-month periods. Only the site’s highest-level domain is recorded, aggregating any subdomain.
Similar Web ranks websites based on a panel of millions of Internet users, International/U.S. internet service providers, direct measurement of web traffic from data from thousands of websites and web crawlers scanning public websites.
Top Alexa Rank
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