Домены в зоне COOP могут зарегистрировать только совместные предприятия (кооперативы). Администратор домена COOP будет четко отслеживать соблюдение требований, предъявляемых к регистрантам. Зарегистрировать домен второго уровня в зоне COOP могут:
.coop is a generic top-level domain intended for the use of cooperatives. It was a part of ICANN's announcement in late 2000 of a phased release of seven new generic top-level domains (gTLDs) intended in part to take the pressure off the overcrowded .com domain. It was backed by a coalition of interest groups, was developed by Poptel in the UK and became operational on January 30, 2002.
.coop is sponsored top-level domain and restricted to those who meet specified criteria: cooperative-type organizations or a wholly owned subsidiary. Its sponsor is DotCooperation LLC (also known as dotCoop), which was created as a subsidiary of the American NCBA (National Cooperative Business Association) to operate the TLD.