What's the difference between "Hits" and "Visits"?
HITS: Each time a Web server sends a file to a browser, it is recorded in the server log file as a "hit." Hits are generated for every element of a requested page (including graphics, text and interactive terms). If a page containing two graphics is viewed by a user, three hits will be recorded - one for the page itself and one for each graphic. Webmasters use hits to measure their server's work load. Because page designs vary greatly, hits are a poor guide for traffic measurement
VISITS: Whenever a request is made to the server from a given IP address (a computer), the amount of time since a previous request by the address is calculated (if any). If the time difference is greater than 30 minutes (or has never made a request before), it is considered a new visit, and this total is incremented. So if a user visits your site at 1:00 in the afternoon, and then returns at 3:00, two visits would be registered.
