Have you ever wondered how popular a certain website really is? Unfortunately, most sites don’t publish their stats for public viewing so accurate numbers are hard to come by. At best, you can look for a website’s “advertising page” which may include marketing materials, demographic information, and yes, monthly traffic data. But when that’s not available, your only option is to rely on a website traffic estimator. Since these are never 100 percent accurate, we only recommend using them to compare traffic of sites in relative terms—and even then, you should only compare readings from the same tool. 1.