Alexa Internet product or material produced Alexa Toolbar
Toolbar
Alexa used to rank sites based primarily on tracking a sample set of Internet traffic—users of its browser toolbar for the Internet Explorer, Firefox and Google Chrome web browsers. The Alexa Toolbar included a popup blocker (which stops unwanted ads), a search box, links to Amazon.com and the Alexa homepage, and the Alexa ranking of the website that the user is visiting. It also allowed the user to rate the website and view links to external, relevant websites. In early 2005, Alexa stated that there had been 10 million downloads of the toolbar, though the company did not provide statistics about active usage. Originally, web pages were only ranked amongst users who had the Alexa Toolbar installed, and could be biased if a specific audience subgroup was reluctant to take part in the rankings. This caused some controversies over how representative Alexa's user base was of typical Internet behavior, especially for less-visited sites. In 2007, Michael Arrington provided examples of Alexa rankings known to contradict data from the comScore web analytics service, including ranking YouTube ahead of Google. In 2021 John Mueller from Google confirmed again that Google doesn't use Amazon Alexa Rank.
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