I think it logs your IP addy on the profile tracker. There is a section called “Unidentified Visitor” and it shows the IP address, location and date. No other info. Sometimes the location is wrong, for example I had my coworker test it so I can see her come up, her myspace page says Silver Spring MD, but the location was NYC. Also, if your page is private, you won’t get any visitors, but the ones on your friends list.