Google Analytics is a powerful tool that tracks and analyzes website traffic for informed marketing decisions.
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__utmb
Used to determine new sessions/visits.
30 minutes
__utmc
Used to determine if the user is in a new session/visit.
Session
__utmt
Used to throttle request rate.
10 minutes
__utmv
Used to store visitor-level custom variable data.
2 years
__utmz
Stores the traffic source or campaign that explains how the user reached your site.
6 months
_ga
Used to distinguish users.
2 years
_gat
Used to throttle request rate.
1 minute
_gid
Used to distinguish users.
24 hours
__utma
Used to distinguish users.
Persistent