A hit is any file download. 1 for each image and 1 for the HTML file that describes the page.
Hits are a meaningless unit of traffic measurement.
Tracking Site Traffic is an instrumental aspect of our site marketing program. Systems for tracking traffic all require attention to set up and maintain. The 2 things to watch for when reviewing your site-traffic logs are the number of visitors coming to your front page and the ratio of visitors continuing through the site. That's a sign your home page is doing its job, but your neighborhood pages are weak. Learn how many visitors are coming to your site and when they come.