Number of unique visitors for the selected period. Visitor is a unique "Cookie", which is assigned to every user. If a user disabled cookies in the browsers a visit will not be counted.
Regular visitors
Visitors who visit this site for at least 7 days during last 28 days.
Session
A sequence of a visitor page views with no more than 30 minutes between then. If more than 30 minutes passed between page views then this page views belong to different sessions.
Page views
The number of times a page was viewed.
Page depth
Total page views per visitor for the selected period.
Hosts
This is a unique pair of IP address and proxy server IP address (if applicable). Uniqueness is preserved during a day, a week or a calendar month — depending on a type of provided statistics.
Bounces
Singe visit of the site without significant actions (not a bounce when there were more than 1 page view, page view lasted more than 15 seconds or visitors reached a goal). The bounce rate for a visitor is calculated within the reporting period for the user. The bounce rate for a session is calculated within the visitor's session.