.cn

.cn is the country code top-level domain for China. It is managed by the China Internet Network Information Center (CNNIC).

Rules and Restrictions

Domain name registry and registrars shall set up within the territory of China corresponding emergency response backup systems and back up on a regular basis domain name registration data.

Domain name registry and registrars may not provide services for domain names containing any of the following contents:

• being against the basic principles prescribed in the Constitution;
• jeopardizing national security, leaking state secrets, intending to overturn the government, or disrupting state integrity;
• harming national honor and interests;
• instigating hostility or discrimination between different nationalities, or disrupting the national solidarity;
• violating the state religion policies or propagating cult and feudal superstition;
• spreading rumors, disturbing public order or disrupting social stability;
• spreading pornography, obscenity, gambling, violence, homicide, terror or instigating crimes;
• insulting, libeling against others and infringing other people's legal rights and interests; or
• other contents prohibited by laws and administrative regulations.

Second-level Domains

Second-level domains should be chosen in accordance with the nature of the entity applicant:

• .ac.cn : Scientific research institutions
• .com.cn : Industrial, commercial, financial, and other enterprises
• .edu.cn : Education institutions (registration restricted)
• .gov.cn : Chinese government organizations (registration restricted)
• .mil.cn : Chinese national defense organizations (registration restricted)
• .net.cn : Organizations providing Internet services
• .org.cn : Not-for-profit organizations
• .政务.cn : Party and government services (registration restricted)
• .公益.cn : Not-for-profit organizations (non-profit organization registration required)

Characters

• Users can comply with the naming rules of simply using or combining with English letters (A-Z, case-insensitive), Arabic numerals (0-9) and half-angle hyphen “-” (i.e., middle transverse line), but not spaces and special characters (such as!, $, & and ?);
• “-” can not appear continuously, separately registered or placed at the beginning or end;
• at most 63 characters can be registered. The maximum length for 中文.CN registration should be calculated after transferred into punycode. The transcoding method refers to "Online Transcoding of Chinese Domain Names".