Domain names are divided into TOP LEVEL 、 SECOND-LEVEL 、 SUB-DOMAIN Etc. The top floor is divided into several types, namely:

. COM commercial institution or company

ORG non-profit organizations and groups

GOV government departments

MIL Military Department

. NET Institutions or companies engaged in Internet related network services

. XX is a two letter country code, such as China CN, Japan JP, UK is In general, UK and other large companies or institutions with international business do not use country codes. This domain name without country code is also called international domain name. In this case, the second layer of the domain name represents the characteristics of an organization or company, such as IBM in IBM.COM. For domain names with country codes, the feature part representing an organization or company is the third layer, such as ABC ABC in COM.JP.

. biz means business

. info General information service usage

As an international top-level domain name,. tv was originally a country code top-level domain name of Tuvalu, a Pacific island country. Through the agreement signed with Tuvalu, DOTTV became TV is the exclusive registrar and registration authority of suffix domain names.

. CC is an officially authorized domain name located on cocos and keeling islands in the Indian Ocean in northwest Australia. In the United States CC has now become the third largest top-level domain name after. com and. net CC domain name has become a trend.

. SH is the top-level domain name of St. Helena Island (St. Helena Island), which is the abbreviation of the island where the great Napoleon was exiled for seven years.