**if** you have certain software installed, and keep logs, like some chat rooms, etc....you can identify the IP numbers that come to your website, but those IPs are usually difficult to trace to an individual...they usually only suggest what ISP providers (AOL, Earthink, RCN...etc.) were used...on very rare occasions, courts will demand records from an ISP to try to trace child molesters, etc....and, as noted, there are ways to make even that almost impossible.

but, as was stated, most people never have ANY idea who looked at their web site