Some people place so much trust on Alexa rating and it seems like they’re not aware that it is not very reliable. This is because the rating is based on people using the Alexa toolbar. So if 100 people visit your site and only 30 has Alexa tool bar installed, the rating will be based on the 30 visits. Also, only some category of people has the toolbar installed because they need the information it provide. This category of people involves webmasters, bloggers, webdesigners, programmers and so on. So sites related to these categories will likely have lower Alexa rating than other sites. The rating is a good estimate of traffic, but it is not reliable and accurate. So you shouldn’t judge a site base on the Alexa rating.