A "Hit" is a term used that represents the number of files downloaded from a server to your computer. For example, if a page has ten different graphics, and someone visited it, it would count as eleven hits, one for the page load, and ten for all the different graphics. The only real use for this statistic is for server administrators, so they can determine the server load. A "Visit" is when the web site is visited by a unique individual, no matter how many pages are viewed.