CZ.NIC is an interest association of legal entities (z.s.p.o.) that primarily operates the registry of .cz domain names and the MojeID service, which enables users to log in to online public administration services. It is also involved in cybersecurity, supporting internet infrastructure, developing internet applications and projects, and education in the domain field. CZ.NIC actively participates in international projects and initiatives aimed at improving internet security and accessibility.