How accurate is Alexa?

By Joe Gardiner Monday, 16th August 2010

Alexa Internet is a web company owned by Amazon that provides a toolbar that offers advice to it's user on navigation, and tracks a users behaviour transmitting it to Alexa for analysis of browsing patterns.

Alexa is widely used, especially when attempting to value a website for a potential sale. Some Webmasters focus on improving their Alexa ranking over improving their content in the pursuit of valuing their site higher. This seems like a waste of effort to me, but this practice does take place, but then you already knew that! With this behaviour taking place, and discrepancies when comparing Alexa rankings with analytic services such as Google's, some concerns over Alexa's accuracy have been raised.

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