.cn is the country code top-level domain (ccTLD) for the People's Republic of China introduced on 28 November 1990. Domain name administration in mainland China is managed through a branch of the Ministry of Industry and Information. The registry is maintained by China Internet Network Information Center (CNNIC). Entities connected to Hong Kong, Macau, and Taiwan often use .hk, .mo, .tw respectively, despite their corresponding second-level domains under .cn available for those regions. The Chinese alphabet internationalized country code is .中国.

Introduced28 November 1990[1]
TLD typeCountry code top-level domain
RegistryChina Internet Network Information Center
SponsorChinese Academy of Sciences
Intended useEntities connected with
Actual useVery popular in mainland China (the largest ccTLD)[2]
Registered domains21 million (April 2017)
StructureNames may be registered directly at the second level or at the third level within generic second-level categories or Chinese province codes
DocumentsChina Internet Domain Name Regulations
Dispute policiesChina ccTLD Dispute Resolution Policy and China ccTLD Dispute Resolution Policy Rules
Registry websiteCNNIC (General)

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