.cn

.cn

Introduced	28 November 1990[1]
TLD type	Country code top-level domain
Status	Active
Registry	China Internet Network Information Center
Sponsor	Chinese Academy of Sciences
Intended use	Entities connected with China
Actual use	Very popular in mainland China[2]
Registered domains	19,562,007 (2024-08-29)[3]
Structure	Names may be registered directly at the second level or at the third level within generic second-level categories or Chinese province codes
Documents	China Internet Domain Name Regulations
Dispute policies	China ccTLD Dispute Resolution Policy and China ccTLD Dispute Resolution Policy Rules
Registry website	cnnic.cn

.cn is the country code top-level domain (ccTLD) for the People's Republic of China. Introduced on 28 November 1990, the domain is administered by China Internet Network Information Center, a public institution affiliated with the Ministry of Industry and Information Technology. The domain is the largest ccTLD in the world.^[4]

The Chinese script internationalized country codes are ".中国" ("China" in Simplified Chinese) and ".中國" ("China" in Traditional Chinese). Entities connected to Hong Kong, Macau, and Taiwan typically use .hk, .mo, and .tw, respectively,^[5] despite the availability of corresponding second-level domains under .cn for those regions.