Trunk Opener

Used by content delivery network Cloudflare to identify trusted web traffic.

Is used for the search function of the website

Saves the cookie banner settings.

Visitor statistics for website optimization, bug analysis, cyber security

pk_id – 13 months (used to store a few details about the user such as the unique visitor ID)

_pk_ref – 6 months (used to store the attribution information, the referrer initially used to visit the website)

_pk_ses, _pk_cvar, _pk_hsr – 30 minutes (short lived cookies used to temporarily store data for the visit)

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