.# # Cookie duration depends on the cookie type:* see below, ‘Google Analytics’# - To help protect web applications and infrastructure from security attacks.**3. Google Analytics:*** **__utma Cookie**: A persistent cookie that remains on a computer, unless it expires or the cookie cache is cleared. It tracks visitors. Metrics associated with the Google __utma cookie include: first visit (unique visit), last visit (returning visit). The cookie is updated every time data is sent to Google Analytics.* **__utmb Cookie*** **__utmc Cookie**: This cookie is used to determine the end of browser sessions. Historically, this cookie operated in conjunction with the __utmb cookie to determine whether the user was in a new session/visit.* **__utmz Cookie**: This cookie stores the traffic source or campaign that explains how the user reached the site. The cookie is created when the javascript library executes and is updated every time data is sent to Google Analytics.* **__utmv Cookie**: This is a ...