Ideally, this is the traffic that came to a site via bookmarks or by directly typing in the URL. It can also be counted when code couldn’t determine a source for that visit.
A visitor who did not have Google Analytics cookies when they hit the first page in this visit. If a visitor deletes their cookies and comes back to the site, the visitor will be counted as a new [...]
Measured by subtracting the time a visitor hit a page from the time they hit the next page. (e.g. If they hit Page 1 at 12:00 and hit Page 2 at 12:03, time on Page 1 is three minutes.)
A visit with one pageview. It doesn’t matter how long the visitor was on the page or how they left. Technically, it’s a visit with only one interaction.
A unique ID. Whenever the tracking code is executed, it looks for cookies on the browser set by the current domain. If they can’t be found, new cookies with a new ID are set.
Consists of a series of pageviews that a single visitor makes during a period of activity. A visit ends after the visitor either closes the browser, clears cookies, or is inactive for 30 minutes.
