
Per the official Google Analytics blog:
- More than 30 minutes have elapsed between pageviews for a single visitor.
- At the end of a day.
- When a visitor closes their browser.
- More than 30 minutes have elapsed between pageviews for a single visitor.
- At the end of a day.
- When any traffic source value for the user changes. Traffic source information includes: utm_source, utm_medium, utm_term, utm_content, utm_id, utm_campaign, and gclid.
Sources:
Update to Sessions in Google Analytics (Official Google Blog)
Update Made To Definition Of A Google Analytics Session(SearchEngineLand)
Author: Tony Berastegui









