Alexa's ranking is based on the statistics gathered from the Alexa toolbar or Alexa status bar. Meaning, if you have the Alexa toolbar or status bar in your Internet Explorer or Mozilla Firefox, you are voting sites without you even knowing.
Let's say I have the Alexa toolbar installed in my Mozilla Firefox and I visited CNN and Facebook. CNN and Facebook will get a point. Based on the number of page views and reach, it will determine what rank is your website.
Do you want to know the ranks of your favorite websites? Visit Alexa.com and download your own Alexa toolbar or status bar and be counted.
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