Google Analytics is a powerful web analytics tool that tracks and reports website traffic. The data helps us better understand user behaviour and make informed marketing decisions.
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_gac_
Contains information about the user’s marketing campaigns. This information is shared with Google Ads when the Google Ads and Google Analytics accounts are linked.
90 days
__utma
An ID used to identify users and sessions.
2 years after the last activity
__utmt
Used to monitor the number of requests to Google Analytics servers.
10 minutes
__utmb
Used to distinguish new sessions and visits. This cookie is set when the GA.js JavaScript library is loaded and no existing __utmb cookie is present. It is updated whenever data is sent to the Google Analytics server.
30 minutes after the last activity
__utmc
Used only by older Urchin versions of Google Analytics, not by GA.js. It was used to distinguish new sessions and visits at the end of a session.
Until the end of the browser session
__utmz
Contains information about the source or campaign that brought visitors to the website. This cookie is set when the GA.js JavaScript library is loaded and is updated whenever data is sent to the Google Analytics server.
6 months after the last activity
__utmv
Contains custom information set by the web developer using the _setCustomVar method in Google Analytics. This cookie is updated whenever new data is sent to the Google Analytics server.
2 years after the last activity
__utmx
Used to determine whether a person is participating in an A/B test or a multivariate test.
18 months
_ga
An ID used to identify users.
2 years
_gali
Used by Google Analytics to determine which links on a page are clicked.
30 seconds
_ga_
An ID used to identify users.
2 years
_gid
An ID used to identify users for 24 hours after their last activity.
24 hours
_gat
Used to monitor the number of requests to Google Analytics servers when Google Tag Manager is used.
1 minute
