Google Analytics uses a set of cookies to collect information on behalf of businesses which use the Google Analytics service and report site usage statistics to them without personally identifying individual visitors. ‘_ga’, the main cookie used by Google Analytics, enables the service to distinguish one visitor from another and lasts for 2 years. Any site that implements Google Analytics, including Google services, uses the ‘_ga’ cookie. Each ‘_ga’ cookie is unique to the specific property, so it cannot be used to track a given user or browser across unrelated websites.
Service URL: policies.google.com (opens in a new window)
_gali
Used by Google Analytics to determine which links on a page are being clicked
30 seconds
__utmz
Contains information about the traffic source or campaign that directed user to the website. The cookie is set when the GA.js JavaScript is loaded and updated when data is sent to the Google Analytics server
6 months after last activity
__utmxx
Used to determine when A/B or Multivariate test in which the user participates ends
18 months
__utmx
Used to determine whether a user is included in an A/B or Multivariate test.
18 months
__utmv
Used to store visitor-level custom variable data. This cookie is created when a developer uses the _setCustomVar method with a visitor level custom variable. It is updated every time data is sent to Google Analytics.
2 years after last activity
__utmt
Used to monitor number of Google Analytics server requests
10 minutes
__utmc
Used only with old Urchin versions of Google Analytics and not with GA.js. Was used to distinguish between new sessions and visits at the end of a session.
End of session (browser)
__utmb
Used to distinguish new sessions and visits. This cookie is set when the GA.js javascript library is loaded and there is no existing __utmb cookie. It is updated every time data is sent to the Google Analytics server.
30 minutes after last activity
__utma
ID used to identify users and sessions
2 years after last activity
_gid
ID used to identify users for 24 hours after last activity
24 hours
_gat
Used to monitor number of Google Analytics server requests when using Google Tag Manager
1 minute
_gat_gtag_
Used to set and get tracking data
1 hour
_ga_
ID used to identify users
2 years
_ga
ID used to identify users
2 years
_dc_gtm_
Used to monitor number of Google Analytics server requests
1 minute
FPLC
The cross-domain linker cookie hashed from the FPID cookie. It’s not HttpOnly, which means it can be read with JavaScript. It has a relatively short lifetime, just 20 hours.
Session
FPID
Registers statistical data on users' behavior on the website. Used for internal analytics.
Session
FPAU
Assigns a specific ID to the visitor. This allows the website to determine the number of specific user-visits for analysis and statistics.
Session
