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Cookie usage

Lists Optimizely Content Management System (CMS 12) cookies.

Cookies are used for various types of website tracking, such as browser sessions.

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

  • apt.uid, apt.sid – Used for telemetry data.
  • .AspNetCore.Antiforgery.# – Strictly necessary. Used by the Optimizely security components. Protects the user against cross-site request forgery (CSRF). They are used only by the CMS UI. This cookie is deleted when you close your browser.
  • .AspNetCore.Identity.Application – Strictly necessary. To keep users logged in for the duration of their browsing session.
  • EPi:NumberOfVisits – Functionality-Related. It stores the number of times you access pages on the site to allow personalization of content based on the frequency at which the site content is viewed and used with the Number of Visits personalization criterion. This cookie is not set if you remove it from your audiences. It is persistent (1 year from creation).
  • EpiStateMarker – Functionality-related. Indicates how session-based information on the visit should be stored, using sessions or cookies.
  • EPiViewedPages – Checks matches of users who, at least once, have visited the selected page that is used with ViewedPagesCriterion under the Site Criteria category of VisitorGroup.
  • ImageEditorFileSize – Used by the Image Editor.
  • _utma, _utmb, _utmc, _utmz – Google Analytics cookies are commonly used on Optimizely websites. These third-party cookies collect information about how visitors use the website.

Protect visitors' privacy

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