I have a AJAX call to PHP registering unique visitors(all pages) to my site based on their IP address and the date. My server shows about 2000 unique visitors a day and I get only about 100 registered with JavaScript. Are other users Robots and Bots/spiders etc, isn’t this too much, or is there something more?
Given that the average number of real users without JavaScript are in the low single-digit percent range, that indicates that the bulk of your unique visitors are not real users.