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.
.am is the internet country code top-level domain (ccTLD) for Armenia. The Armenia Network Information Centre is managed by the Internet Society of Armenia and is headquartered in Yerevan.
.info is a generic top-level domain (gTLD) in the Domain Name System (DNS) of the Internet. The name is derived from information, although registration requirements do not prescribe any particular purpose.
An internationalized domain name (IDN) is an Internet domain name that contains at least one label displayed in software applications, in whole or in part, in non-Latin script or alphabet or in the Latin alphabet-based characters with diacritics or ligatures. These writing systems are encoded by computers in multibyte Unicode. Internationalized domain names are stored in the Domain Name System (DNS) as ASCII strings using Punycode transcription.
.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.
.ch is the country code top-level domain (ccTLD) for Switzerland in the Domain Name System of the Internet. Made available in 1987, only two years after .com, it is administered by SWITCH Information Technology Services.
.tl is the current country code top-level domain (ccTLD) for East Timor (Timor-Leste). It is administered through the Council of Country Code Administrators (CoCCA) and second-level registration is available through resellers worldwide with no local presence requirement.
.ws is the Internet country code top-level domain (ccTLD) for Samoa. It is administered by SamoaNIC, for the Ministry of Foreign Affairs of the Government of Samoa.
The Internet country code top-level domain (ccTLD) .io is nominally assigned to the British Indian Ocean Territory. The domain is managed by Internet Computer Bureau Ltd, a domain name registry, with registrar services provided by Name.com.
.mx is the Internet country code top-level domain (ccTLD) for Mexico, which in 2009 was re-opened to new registrations by NIC México. In 2009, the .mx ccTLD was rolled out in three steps:
.mm is the Internet country code top-level domain (ccTLD) for Myanmar. It was assigned in 1997. Before 1989, the ISO 3166 alpha-2 code for Burma was BU, but no .bu ccTLD was assigned.
.la is the Internet country code top-level domain (ccTLD) for Laos.
.ly is the Internet country code top-level domain (ccTLD) for Libya.
.ps is the Internet country code top-level domain ccTLD officially assigned to the State of Palestine. It is administered by the Palestinian National Internet Naming Authority.
.sc is the Internet country code top-level domain (ccTLD) for Seychelles. The TLD was marketed to businesses in Scotland and the U.S. state of South Carolina, however, the domains are subject to Seychelles registry rules. While SCregistrars, a company which marketed .sc domains to a target audience of Scottish sites, has since closed down the .sc extension remains available through the Afilias Global platform via various well-known registrars internationally for direct registration at second-level.
.tt is the internet country code top-level domain (ccTLD) in the Domain Name System of the Internet for Trinidad and Tobago.
In the Domain Name System (DNS) hierarchy, a second-level domain is a domain that is directly below a top-level domain (TLD). For example, in example.com, example is the second-level domain of the .com TLD.
.web is a proposed top-level domain (TLD) that was created and assigned by an auction process to several bidding companies. It was awarded to Nu Dot Co LLC, which is primarily funded by Verisign.
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