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Show details
| Name |
Provider |
Purpose |
Expiration |
|
_sp_id
|
Snowplow Analytics
|
Stores user information that is created when a user first visits a site and updated on subsequent visits. It is used to identify users and track the users activity across a domain. This cookie stores a unique identifier for each user, a unique identifier for the users current session, the number of visits a user has made to the site, the timestamp of the users first visit, the timestamp of their previous visit and the timestamp of their current visit.
|
2 years or cookieLifetime set on tracker initialisation
|
|
_sp_ses
|
Snowplow Analytics
|
Used to identify if the user is in an active session on a site or if this is a new session for a user (i.e. cookie doesn’t exist or has expired).
|
30 minutes or sessionCookieTimeout set on tracker initialisation
|
|
sp
|
Snowplow Analytics
|
Stores a server-side collector generated unique identifier for a user that is sent with all subsequent tracking event events. Can be used as a first party cookie is the collector is on the same domain as the site. Can be disabled by setting collector.cookie.enabled to false (See here for more information).
|
1 year
|
|
_ga
|
Google Analytics
|
Used to distinguish users.
|
2 Years
|
|
_gid
|
Google Analytics
|
Used to distinguish users.
|
24 Hours
|
|
AMP_TOKEN
|
Google Analytics
|
Contains a token that can be used to retrieve a Client ID from AMP Client ID service. Other possible values indicate opt-out, inflight request or an error retrieving a Client ID from AMP Client ID service.
|
30 seconds to 1 year
|
|
__utma
|
Google Analytics
|
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.
|
2 Years
|
|
__utmt
|
Google Analytics
|
Used to throttle request rate.
|
10 Minutes
|
|
__utmb
|
Google Analytics
|
Used to determine new sessions/visits.
|
30 Minutes for set/update
|
|
__utmz
|
Google Analytics
|
Stores the traffic source or campaign that explains how the user reached this site. The cookie is created when the javascript library executes and is updated every time data is sent to Google Analytics.
|
6 months from set/update
|
|
__utmv
|
Google Analytics
|
Used to store visitor-level custom variable data.
|
2 years from set/update
|
