COOKIE NAME | DESCRIPTION AND USE |
| __utma | Used by Google Analytics to distinguish users and sessions. The cookie is created when the Google Analytics JavaScript library executes and no existing __utma cookies exists. The cookie is updated every time data is sent to Google Analytics. This cookie will last for two years. |
| __utmb | Used by Google Analytics to determine new sessions/visits. The cookie is created when the Google Analytics JavaScript library executes and no existing __utmb cookies exists. The cookie is updated every time data is sent to Google Analytics. This cookie is deleted 30 minutes after last being used. |
| __utmc | Used by Google Analytics in conjunction with the __utmb cookie to determine whether the user is in a new session/visit. This cookie is deleted when you close your browser. |
| __utmv | Used by Google Analytics to store visitor-level custom variable data. The cookie is updated every time data is sent to Google Analytics. This cookie is deleted after two years. |
| __utmz | Used by Google Analytics to store the traffic source or campaign that explains how the user reached the site. The cookie is created when the Google Analytics JavaScript library executes and is updated every time data is sent to Google Analytics. This cookie is deleted after six months. |
| __ga | Used by Google Analytics to distinguish users. The cookie is updated every time data is sent to Google Analytics. This cookie is deleted 2 years after creation. |
| _gat | Used by Google Analytics to throttle request rate. The cookie is updated every time data is sent to Google Analytics. Deleted after 10 minutes. |
| pid | Used by Twitter to track whether you are logged in to Twitter by saving a unique anonymous id for each website visitor. Enables tailored twitter suggestions. Not automatically deleted. |
| guest_id | Used by Twitter to identify individual users who are not logged in to Twitter. Acts as a guest ID cookie. This cookie is deleted after two years. |
| eu_cn | Used by Twitter to identify individual users. This cookie is deleted after one year. |