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Details of the cookies we use
The table below explains the cookies we use, why we use them and how long they last.
Cookie Name |
Duration |
Purpose |
__utma |
2 years from set/update |
Used to distinguish users and sessions. The cookie is created when the javascript library executes and no existing __utma cookies exists. The cookie is updated every time data is sent to Google Analytics. |
__utmt |
10 minutes |
Used to throttle request rate. |
__utmb |
30 mins from set/update |
Used to determine new sessions/visits. The cookie is created when the javascript library executes and no existing __utmb cookies exists. The cookie is updated every time data is sent to Google Analytics. |
__utmc |
End of browser session |
Not used in ga.js. Set for interoperability with urchin.js. Historically, this cookie operated in conjunction with the __utmb cookie to determine whether the user was in a new session/visit. |
__utmz |
6 months from set/update |
Stores the traffic source or campaign that explains how the user reached your site. The cookie is created when the javascript library executes and is updated every time data is sent to Google Analytics. |
__utmv |
2 years from set/update |
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. This cookie was also used for the deprecated _setVar method. The cookie is updated every time data is sent to Google Analytics. |
_ga |
2 years from set/update |
This cookie is used for Google Analytics to distinguish unique users by assigning a randomly generated number as a client identifier. |
_gid |
1 Day |
This cookie is used for Google Analytics to store and update a unique value for each page visited. |
SEL_Cookie_Law |
1 year from set/update |
This cookie is set when a user accepts the terms and conditions of using the site, thus hiding the notification. |