Stat Counter is a super tool that is FREE. I have used it for several years and after recently redesigning my website I added more Stat Counter buttons. This software allows you to track the number of visitors to your site or to individual pages. It provides you with a report you can set to arrive at your time specifications, i.e. weekly, monthly etc.
It does not track ip addresses or who is visiting just numbers. It is customizable and can even be invisible. You can set it to show count or just to show you are counting. The reports are invaluable when you want to determine traffic changes. A great tool and did I mention.. IT’s FREE!