.cn
| Introduced | 28 November 1990 |
|---|---|
| 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 |
| Registered domains | 19,562,007 (2024-08-29) |
| Structure | Names can be registered either at the second level, or at the third level under the generic or provincial-level administrative divisions second-level domains |
| Documents | China Internet Domain Name Regulations |
| Dispute policies | China ccTLD Dispute Resolution Policy and China ccTLD Dispute Resolution Policy Rules |
| Registry website | cnnic |
.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.
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, despite the availability of corresponding second-level domains under .cn for those regions.