The number of Internet users who have visited the web resource over a certain time period (day, week, month, etc.). It is taken into account as the number of unique sessions, and the total number of views made by visitors pages.

The magnitude of the attendance rate of a web resource can be judged by the effectiveness search promotion.

Observation of site traffic is carried out by installing special visitors' counters, as well as toolbars provided by search engines that have more accounting and analysis capabilities.