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Dev Guide

Cookie use

Describes the cookie use related to the Optimizely Digital Experience Platform (DXP) services.

Optimizely Digital Experience Platform (DXP) uses the following cookies for various purposes.

  • ARRAffinity – Strictly necessary. It routes the request through a web browser to the same machine in the DXC cloud environment. See ARRAffinity - Microsoft Azure. DXP deletes this cookie when you close your browser.
  • __cfuid – Strictly necessary. Speeds up page loading times and overrides any security restrictions that a browser may apply based on the IP address from which it comes. Persistent (1 year from creation). See CloudFlare cookies.
  • ai_session – Used with Microsoft Application Insights to collect statistical usage and telemetry information. Unique anonymous session identifier cookie.
  • ai_user – Used with Microsoft Application Insights to collect statistical usage and telemetry information. Unique user identifier cookie for counting the number of users accessing an application over time.
  • TiPMix – Used in Azure to pin a user session to a deployment slot during deployments.
  • x-ms-routing-name – Used in Azure during deployments to route to deployment slots.

See Optimizely platform cookies for information about other cookies used in the Optimizely platform.