A cookie is a file that the visited site stores on the computer or on any peripheral used to browse the Internet, in order, for instance, to send session information for each page, or to record that a particular page has been accessed. The aim is to optimize browsing in terms of its convenience, efficiency and pertinence. 

The information is stored in the cookie for a limited time. It is anonymous and relates to the pages visited and the time spent on each, the means used for browsing (operating system, browser and resolution, etc.), the searches made, and the IP address, in order to make rough groupings by geographical area etc. 

For those affected, a module for managing cookie storage is available on the portal. 

Cookie name 

Description 

Lifespan 

__RequestVerificationToken 

Used by the system antiforgery

Session 

.AspNet.ApplicationCookie 

Used to identify user sessions. A user session begins when a user first browses the portal and ends when the session is closed. Authentication site settings can be used to modify the session expiration duration. 

Session 

adxPreviewUnpublishedEntities 

Stores the ACTIVATED/DEACTIVATED preview mode used in the classic CMS system for portal administrators. 

Session 

adx-notification 

Used in basic form actions to store the alert message to display during redirection. 

Session 

ARRAffinity 

Automatically added by Azure websites to ensure load balancing across different sites. Does not store any user information. 

Session 

ASP.NET_SessionId 

Used to maintain a user's session to prevent repeated login. 

Session 

ContextLanguageCode 

Stores the default language of the user accessing the portal within a session and on web pages. The cookie is deleted after the session is closed. 

Session 

Dynamics365PortalAnalytics 

Essential service cookie for anonymously and aggregatedly analyzing service usage for statistical purposes. 

More than 90 days 

isDSTObserved 

Stores a value to indicate whether the current time is in daylight saving time. 

Session 

isDSTSupport 

Indicates whether a specified date and time are within the daylight saving time range. 

Session 

timeZoneCode 

Stores the value of the timezonecode field from the CRM Time Zone Definition table for the current time zone. 

Session 

timezoneoffset 

Store the time zone difference between UTC and the local browser time.. 

Session 

‘_pk_ref’ 

used to store the attribution information, the referrer initially used to visit the websit 

6 months 

‘_pk_cvar’ 

used to store a few details about the user such as the unique visitor ID 

13 months 

_pk_ses, _pk_cvar, _pk_hsr 

short lived cookies used to temporarily store data for the visit 

30 minutes 

_pk_testcookie 

is created and should be then directly deleted (used to check whether the visitor’s browser supports cookies) 

Session 

mtm_consent (or mtm_consent_removed) 

are created with an expiry date of 30 years to remember that consent was given (or removed) by the user. 

Session 

mtm_cookie_consent 

is created with an expiry date of 30 years to remember that consent for storing and using cookies was given by the user. 

30 years 

matomo_sessid 

(It is important to note that it doesn’t contain any data used to identify visitors and is considered an “Essential” cookie 

14 days