These cookies help us to analyse user behavior and thus to improve your experience on our website.
_pk_id and _pk_ses
This cookie stores a visitor ID in an active session and calculates unique visitors*. In addition, the cookie generates the reports "Number of visits", "Days since last visit", "Days to conversion", "Visits counted" to identify returning visitors.
This cookie stores a unique session ID. If the cookie is not available and the last visit (in pk_id cookie) was more than 30 minutes ago, the number of visits in _pk_id cookie is increased.