A top-level domain (TLD) is one of the domains at the highest level in the hierarchical Domain Name System of the Internet after the root domain. The top-level domain names are installed in the root zone of the name space. For all domains in lower levels, it is the last part of the domain name, that is, the last non empty label of a fully qualified domain name. For example, in the domain name www.example.com, the top-level domain is .com. Responsibility for management of most top-level domains is delegated to specific organizations by the ICANN, an Internet multi-stakeholder community, which operates the Internet Assigned Numbers Authority (IANA), and is in charge of maintaining the DNS root zone.
.fm is the country code top-level domain (ccTLD) for the Federated States of Micronesia, an independent island nation located in the Pacific Ocean.
.uk is the Internet country code top-level domain (ccTLD) for the United Kingdom. It was first registered in July 1985, seven months after the original generic top-level domains such as .com and the first country code after .us.
A country code top-level domain (ccTLD) is an Internet top-level domain generally used or reserved for a country, sovereign state, or dependent territory identified with a country code. All ASCII ccTLD identifiers are two letters long, and all two-letter top-level domains are ccTLDs.
.af is the Internet country code top-level domain (ccTLD) for Afghanistan. It is administered by AFGNIC, a service of the UNDP. As of 26 August 2020, .af was used by 5960 domains.
.as is the Internet country code top-level domain (ccTLD) for American Samoa. It is administered by AS Domain Registry. Island Networks, which provides registry services for .gg and .je, is also responsible for the technical operations of .as.
.bs is the Internet country code top-level domain (ccTLD) for the Bahamas. It is administered by the University of the Bahamas.
.bt is the Internet country code top-level domain (ccTLD) for the Kingdom of Bhutan. It is administered by the Ministry of Information and Communication.
.kh is the Internet country code top-level domain (ccTLD) for the Kingdom of Cambodia. It was formerly administered by the Ministry of Post and Telecommunications of Cambodia from 1997. In September 2012, the domain name was transferred to the Telecommunication Regulator of Cambodia, which currently administers it. The domain name is named after the majority ethnic group of Cambodia, the Khmer people.
.il is the Internet country code top-level domain (ccTLD) of Israel, administered by the Israel Internet Association and managed by NIC - ISRAEL, which hosts the DNS root server and manages the Israeli Internet Exchange, that supports IPv4 and IPv6.
.sg is the Internet country code top-level domain (ccTLD) for Singapore. It was first registered in September 1988. It is administered by the Singapore Network Information Centre. Registrations are processed via accredited registrars.
.um was the Internet country code top-level domain for the United States Minor Outlying Islands. It was administered by the United States Minor Outlying Islands Registry. Until late 2006 USMIR was housed at the University of Southern California Information Sciences Institute (USC-ISI), which was the original administrator of .us prior to NeuStar absorbing that role.
.dz is the country code top-level domain (ccTLD) for Algeria.
.mo is the Internet country code top-level domain (ccTLD) for Macau.
.so is the internet country code top-level domain (ccTLD) for Somalia. After a long absence, the .so domain was officially relaunched on November 1, 2010, by .SO Registry, which is regulated by the nation's Ministry of Posts and Telecommunications. It was launched through various accredited registrars around the world.
.ma is the Internet country code top-level domain (ccTLD) for Morocco. A local registrar with a local Moroccan company as administrative contact is needed to register a .ma or .co.ma domain name. Further restrictions are imposed on the registering of other second-level domains.
.mu is the Internet country code top-level domain (ccTLD) for Mauritius. It is administered by the Mauritius Network Information Centre and registrations are processed via accredited registrars. Some registrars market it as the .music and .museum TLD.
.sb is the Internet country code top-level domain (ccTLD) for Solomon Islands. It is administered through the Council of Country Code Administrators (CoCCA).
.gg is the country code top-level domain for the Bailiwick of Guernsey. The domain is administered by Island Networks, who also administer the .je domain for neighbouring territory Jersey. The domain was chosen as other possible codes—.gu, .gs, and .gy—were already allocated.
Dr Nigel Roberts FIoD FBCS FRSA is a British computer scientist.
