Whats the difference between clicks, visits, unique visits, and unique visitors?
The clicks column in your reports indicates how many times your advertisements were clicked by visitors, while visits indicates the number of unique sessions initiated by your visitors. Statistics measures both visits and visitors in your account. Visits represent the number of individual sessions initiated by all the visitors to your site. If a user is inactive on your site for 30 minutes or more, any future activity will be attributed to a new session. Users that leave your site and return within 30 minutes will be counted as part of the original session. The initial session by a user during any given date range is considered to be an additional visit and an additional visitor. Any future sessions from the same user during the selected time period are counted as additional visits, but not as additional visitors. A pageview is defined as a view of a page on your site that is being tracked by the tracking code. If a visitor hits reload after reaching the page, this will be counted as a