Difference Between a Visit and a Unique Visit

To know how good your website is doing once you get it up and running you will need to know the difference between Visits, and Unique Visits. This time frame however is only measured on a 24 hour basis. For example, you have already visited my website and after about an hour you decide you want to look at the web hosting specials instead of just looking a coupon codes. So you come back to the site. The second visit is not unique the first visit is the only unique visit.