Cruks
The Dutch central register of people excluded from gambling (Centraal Register Uitsluiting Kansspelen), run by the Dutch gambling regulator, the Kansspelautoriteit.
In practice
Since 1 October 2021 providers of higher-risk games in the Netherlands, including slot arcades and online operators, must check the register before letting a person play and refuse anyone who is listed. Being connected to the register is a condition of an online licence.