There are a number of third party visitor counters available for your site. Once exceptionally good counter is StatCounter, which can be found at www.statcounter.com

Statcounter is an invisible counter which is incorporated into the code of your web page, which counts visitors, shows visitor locations,  time of visit, browser, etc…

The features in Statcounter outweigh Webalizer and Analog Stats and it’s a useful tool for monitoring visitors to your web pages.