Why Google Analytics Website Visitor Stats Differ from the Default Webalizer Stats
This is a commonly asked question and there is no concrete answer. The best answer is that Google Analytics give you a part of the picture and server logs available from the PD-go! System give you another part of the picture. Look at the both of them and you're a little closer to the actual numbers. The difference is that while the server counts visitor stats based on what the server reports, Google Analytics counts stats that are reported from the javascript code that you insert on your pages. If any of your visitors have Javascript disabled (unlikely) than those visitors won't be counted via Google Analytics. However, Google Analytics is smarter than server stats as it is more discerning about whether traffic is a human or a robot.
This discussion could go on indefinitely. I'll provide a link to a blog on the topic or if you really want to muddy the waters you can Google "Webalizer vs. Google Analytics".
