Google Analytics is a powerful tool that tracks and analyzes website traffic for informed marketing decisions.
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_gid
用於在使用者最後一次活動後的 24 小時內識別使用者。
24 小時
_gat
用於使用 Google 代碼管理器時監控 Google Analytics 伺服器請求的數量。
1 分鐘
_gac_
包含與用戶行銷活動相關的資訊。當 Google Ads 和 Google Analytics 帳戶關聯時，這些資訊會與 Google AdWords/Google Ads 共用。
90 天
__utma
ID used to identify users and sessions
2 years after last activity
__utmt
Used to monitor number of Google Analytics server requests
10 minutes
__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. The cookie is updated every time data is sent to the Google Analytics server.
30 minutes after last activity
__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)
__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 Anaytics server
6 months after last activity
__utmv
Contains custom information set by the web developer via the _setCustomVar method in Google Analytics. This cookie is updated every time new data is sent to the Google Analytics server.
2 years after last activity
__utmx
Used to determine whether a user is included in an A / B or Multivariate test.
18 months
_ga
ID used to identify users
2 years
_gali
Google Analytics 使用此 Cookie 來判斷使用者點擊了頁面上的哪些連結。
30 秒
