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Cookie usage

Describes the cookies used by Optimizely Content Management System (CMS) versions 10 and 11.

Use cookies for various types of website tracking, such as browser sessions.

 Optimizely Content Management System (CMS) uses the following cookies:

Cookie NamePurpose
ASP.NET_SessionIdStrictly necessary. A session cookie is sent to the web browser. Use it when you open the browser and visit a website implementing the ASP.NET session state. This cookie identifies requests from the same browser during a limited session window when browsing the website. This cookie is deleted when you close your browser.
EPi:NumberOfVisitsFunctionality-related. Stores the number of times you access pages on the site to allow personalization of content based on the frequency at which a visitor views the site content. Use it with the Number of Visits personalization criterion. This cookie is not set if you remove it from your visitor groups. Persistent (1 year from creation).
.EPiServerLogin, EPiDPCKEY, .ASPXRolesStrictly necessary. It is only used if you log in to a website. You should clearly state on the login page that cookies are used if you log in. This cookie allows for login/access and permissions when using the CMS interface. It is deleted when you close your browser.
`__epiXSRF & __RequestVerificationToken & __RequestVerificationTokenStrictly necessary. It is used by the Optimizely security components, protects the user against cross-site request forgery (XSRF), and is used only by the CMS UI. This cookie is deleted when you close your browser.
ImageEditorFileSizeUsed by the Image Editor.
_utma, _utmb, _utmc, _utmzThese are commonly used Google Analytics cookies on Optimizely websites. Use these third-party cookies to collect information about how visitors use the website.

Protect visitor privacy

According to EU directives, website owners are responsible for informing visitors about cookies used on the site. See Protect Your Visitors’ Privacy According to EU Directive on Cookies.