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Top-level domain, the Glossary

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.^[1]

162 relations: Alphabet, Alternative DNS root, Anguilla, Arabic alphabet, Aruba, Association française pour le nommage Internet en coopération, BITNET, Bosnia and Herzegovina, Chinese characters, Communications Decency Act, Country, Country Code Names Supporting Organization, Country code top-level domain, Croatia, CSNET, Curaçao, Czech Republic, Czechoslovakia, Democratic Republic of the Congo, Dependent territory, Dig (command), DNS root zone, Domain hack, Domain name, Domain name registrar, Domain Name System, Dynamic Delegation Discovery System, East Germany, Example.com, Fully qualified domain name, Generic top-level domain, German reunification, Host (Unix), I2P, ICANN, Identity Digital, International organization, Internationalized country code top-level domain, Internationalized domain name, Internet, Internet Architecture Board, Internet Assigned Numbers Authority, Internet Computer Bureau, Internet Engineering Task Force, Internet in Zimbabwe, Internet Systems Consortium, InterNIC, IPv4, ISO 3166, ISO 3166-1 alpha-2, ... Expand index (112 more) »
1980s establishments
Computer-related introductions in the 1980s
Top-level domains

Alphabet

An alphabet is a standard set of letters written to represent particular sounds in a spoken language.

See Top-level domain and Alphabet

Alternative DNS root

The Internet uses the Domain Name System (DNS) to associate numeric computer IP addresses with human-readable names.

See Top-level domain and Alternative DNS root

Anguilla

Anguilla is a British Overseas Territory in the Caribbean.

See Top-level domain and Anguilla

Arabic alphabet

The Arabic alphabet (الْأَبْجَدِيَّة الْعَرَبِيَّة, or الْحُرُوف الْعَرَبِيَّة), or Arabic abjad, is the Arabic script as specifically codified for writing the Arabic language.

See Top-level domain and Arabic alphabet

Aruba

Aruba, officially the Country of Aruba (Land Aruba; Pais Aruba), is a constituent country within the Kingdom of the Netherlands, situated in the south of the Caribbean Sea.

See Top-level domain and Aruba

Association française pour le nommage Internet en coopération

Association française pour le nommage Internet en coopération (AFNIC) is a non-profit corporation that was created in December 1997 in order to operate country code top-level domain names for France and a number of its overseas departments and collectivities.

See Top-level domain and Association française pour le nommage Internet en coopération

BITNET

BITNET was a co-operative U.S. university computer network founded in 1981 by Ira Fuchs at the City University of New York (CUNY) and Greydon Freeman at Yale University.

See Top-level domain and BITNET

Bosnia and Herzegovina

Bosnia and Herzegovina (Босна и Херцеговина), sometimes known as Bosnia-Herzegovina and informally as Bosnia, is a country in Southeast Europe, situated on the Balkan Peninsula.

See Top-level domain and Bosnia and Herzegovina

Chinese characters

Chinese characters are logographs used to write the Chinese languages and others from regions historically influenced by Chinese culture.

See Top-level domain and Chinese characters

Communications Decency Act

The Communications Decency Act of 1996 (CDA) was the United States Congress's first notable attempt to regulate pornographic material on the Internet.

See Top-level domain and Communications Decency Act

Country

A country is a distinct part of the world, such as a state, nation, or other political entity.

See Top-level domain and Country

Country Code Names Supporting Organization

The Country Code Names Supporting Organization (ccNSO) of the Internet Corporation for Assigned Names and Numbers (ICANN) is the policy-development body for a narrow range of global issues regarding country code top-level domains (ccTLD) within the ICANN structure.

See Top-level domain and Country Code Names Supporting Organization

Country code top-level domain

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. Top-level domain and country code top-level domain are domain Name System and top-level domains.

See Top-level domain and Country code top-level domain

Croatia

Croatia (Hrvatska), officially the Republic of Croatia (Republika Hrvatska), is a country located at the crossroads of Central and Southeast Europe.

See Top-level domain and Croatia

CSNET

The Computer Science Network (CSNET) was a computer network that began operation in 1981 in the United States.

See Top-level domain and CSNET

Curaçao

Curaçao (or, or, Papiamentu), officially the Country of Curaçao (Land Curaçao; Papiamentu: Pais Kòrsou), is a Lesser Antilles island in the southern Caribbean Sea, specifically the Dutch Caribbean region, about north of Venezuela.

See Top-level domain and Curaçao

Czech Republic

The Czech Republic, also known as Czechia, is a landlocked country in Central Europe.

See Top-level domain and Czech Republic

Czechoslovakia

Czechoslovakia (Czech and Československo, Česko-Slovensko) was a landlocked state in Central Europe, created in 1918, when it declared its independence from Austria-Hungary.

See Top-level domain and Czechoslovakia

Democratic Republic of the Congo

The Democratic Republic of the Congo (DRC), also known as the DR Congo, Congo-Kinshasa, Congo-Zaire, or simply either Congo or the Congo, is a country in Central Africa.

See Top-level domain and Democratic Republic of the Congo

Dependent territory

A dependent territory, dependent area, or dependency (sometimes referred as an external territory) is a territory that does not possess full political independence or sovereignty as a sovereign state and remains politically outside the controlling state's integral area.

See Top-level domain and Dependent territory

Dig (command)

dig is a network administration command-line tool for querying the Domain Name System (DNS). Top-level domain and Dig (command) are domain Name System.

See Top-level domain and Dig (command)

DNS root zone

The DNS root zone is the top-level DNS zone in the hierarchical namespace of the Domain Name System (DNS) of the Internet. Top-level domain and DNS root zone are domain Name System.

See Top-level domain and DNS root zone

Domain hack

A domain hack is a domain name that suggests a word, phrase, or name when concatenating two or more adjacent levels of that domain. Top-level domain and domain hack are domain Name System.

See Top-level domain and Domain hack

Domain name

In the Internet, a domain name is a string that identifies a realm of administrative autonomy, authority or control. Top-level domain and domain name are domain Name System.

See Top-level domain and Domain name

Domain name registrar

A domain name registrar is a company, person, or office that manages the reservation of Internet domain names. Top-level domain and domain name registrar are domain Name System.

See Top-level domain and Domain name registrar

Domain Name System

The Domain Name System (DNS) is a hierarchical and distributed name service that provides a naming system for computers, services, and other resources on the Internet or other Internet Protocol (IP) networks.

See Top-level domain and Domain Name System

Dynamic Delegation Discovery System

The Dynamic Delegation Discovery System (DDDS) is an algorithm for applying string transformation rules to application-unique strings to extract specific syntax elements. Top-level domain and Dynamic Delegation Discovery System are domain Name System.

See Top-level domain and Dynamic Delegation Discovery System

East Germany

East Germany (Ostdeutschland), officially known as the German Democratic Republic (GDR; Deutsche Demokratische Republik,, DDR), was a country in Central Europe from its formation on 7 October 1949 until its reunification with West Germany on 3 October 1990.

See Top-level domain and East Germany

Example.com

The domain names example.com, example.net, example.org, and example.edu are second-level domain names in the Domain Name System of the Internet. Top-level domain and example.com are domain Name System.

See Top-level domain and Example.com

Fully qualified domain name

A fully qualified domain name (FQDN), sometimes also referred to as an absolute domain name, is a domain name that specifies its exact location in the tree hierarchy of the Domain Name System (DNS). Top-level domain and fully qualified domain name are domain Name System.

See Top-level domain and Fully qualified domain name

Generic top-level domain

Generic top-level domains (gTLDs) are one of the categories of top-level domains (TLDs) maintained by the Internet Assigned Numbers Authority (IANA) for use in the Domain Name System of the Internet. Top-level domain and Generic top-level domain are top-level domains.

See Top-level domain and Generic top-level domain

German reunification

German reunification (Deutsche Wiedervereinigung) was the process of re-establishing Germany as a single full sovereign state, which took place between 9 November 1989 and 15 March 1991.

See Top-level domain and German reunification

Host (Unix)

host is a simple utility for performing Domain Name System lookups.

See Top-level domain and Host (Unix)

I2P

The Invisible Internet Project (I2P) is an anonymous network layer (implemented as a mix network) that allows for censorship-resistant, peer-to-peer communication.

See Top-level domain and I2P

ICANN

The Internet Corporation for Assigned Names and Numbers (ICANN) is a global multistakeholder group and nonprofit organization headquartered in the United States responsible for coordinating the maintenance and procedures of several databases related to the namespaces and numerical spaces of the Internet, ensuring the Internet's stable and secure operation. Top-level domain and ICANN are domain Name System.

See Top-level domain and ICANN

Identity Digital

Identity Digital Inc. is a company with affiliated entities that operate in the domain name industry, including a domain name registrar and registry services provider.

See Top-level domain and Identity Digital

International organization

An international organization, also known as an intergovernmental organization or an international institution, is an organization that is established by a treaty or other type of instrument governed by international law and possesses its own legal personality, such as the United Nations, the World Health Organization, International Union for Conservation of Nature, and NATO.

See Top-level domain and International organization

Internationalized country code top-level domain

An internationalized country code top-level domain is a top-level domain in the Domain Name System (DNS) of the Internet. Top-level domain and internationalized country code top-level domain are top-level domains.

See Top-level domain and Internationalized country code top-level domain

Internationalized domain name

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.

See Top-level domain and Internationalized domain name

Internet

The Internet (or internet) is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices.

See Top-level domain and Internet

Internet Architecture Board

The Internet Architecture Board (IAB) is a committee of the Internet Engineering Task Force (IETF) and an advisory body of the Internet Society (ISOC).

See Top-level domain and Internet Architecture Board

The Internet Assigned Numbers Authority (IANA) is a standards organization that oversees global IP address allocation, autonomous system number allocation, root zone management in the Domain Name System (DNS), media types, and other Internet Protocol–related symbols and Internet numbers.

See Top-level domain and Internet Assigned Numbers Authority

Internet Computer Bureau

The Internet Computer Bureau is an Internet top-level domain custodian based in the United Kingdom.

See Top-level domain and Internet Computer Bureau

Internet Engineering Task Force

The Internet Engineering Task Force (IETF) is a standards organization for the Internet and is responsible for the technical standards that make up the Internet protocol suite (TCP/IP).

See Top-level domain and Internet Engineering Task Force

Internet in Zimbabwe

The Internet in Zimbabwe has seen rapid expansion in recent years.

See Top-level domain and Internet in Zimbabwe

Internet Systems Consortium

Internet Systems Consortium, Inc., also known as ISC, is an American non-profit corporation that supports the infrastructure of the universal, self-organizing Internet by developing and maintaining core production-quality software, protocols, and operations.

See Top-level domain and Internet Systems Consortium

InterNIC

InterNIC, known as the Network Information Center (NIC) until 1993, was the organization primarily responsible for Domain Name System (DNS) domain name allocations and X.500 directory services.

See Top-level domain and InterNIC

IPv4

Internet Protocol version 4 (IPv4) is the first version of the Internet Protocol (IP) as a standalone specification.

See Top-level domain and IPv4

ISO 3166

ISO 3166 is a standard published by the International Organization for Standardization (ISO) that defines codes for the names of countries, dependent territories, special areas of geographical interest, and their principal subdivisions (e.g., provinces or states).

See Top-level domain and ISO 3166

ISO 3166-1 alpha-2

ISO 3166-1 alpha-2 codes are two-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), to represent countries, dependent territories, and special areas of geographical interest.

See Top-level domain and ISO 3166-1 alpha-2

Jurisdiction

Jurisdiction (from Latin juris 'law' + dictio 'speech' or 'declaration') is the legal term for the legal authority granted to a legal entity to enact justice.

See Top-level domain and Jurisdiction

List of DNS record types

This list of DNS record types is an overview of resource records (RRs) permissible in zone files of the Domain Name System (DNS). Top-level domain and list of DNS record types are domain Name System.

See Top-level domain and List of DNS record types

List of Internet top-level domains

This list of Internet top-level domains (TLD) contains top-level domains, which are those domains in the DNS root zone of the Domain Name System of the Internet. Top-level domain and list of Internet top-level domains are top-level domains.

See Top-level domain and List of Internet top-level domains

List of TCP and UDP port numbers

This is a list of TCP and UDP port numbers used by protocols for operation of network applications.

See Top-level domain and List of TCP and UDP port numbers

Localhost

In computer networking, localhost is a hostname that refers to the current computer used to access it.

See Top-level domain and Localhost

MHSnet

MHSnet is a store-and-forward Message Handling System for wide area networks.

See Top-level domain and MHSnet

Montenegro

Montenegro is a country in Southeastern Europe, situated on the Balkan Peninsula.

See Top-level domain and Montenegro

Multicast DNS

In computer networking, the multicast DNS (mDNS) protocol resolves hostnames to IP addresses within small networks that do not include a local name server. Top-level domain and multicast DNS are domain Name System.

See Top-level domain and Multicast DNS

MX record

A mail exchanger record (MX record) specifies the mail server responsible for accepting email messages on behalf of a domain name.

See Top-level domain and MX record

Name server

A name server is a computer application that implements a network service for providing responses to queries against a directory service. Top-level domain and name server are domain Name System.

See Top-level domain and Name server

Namecoin

Namecoin (Abbreviation: NMC; sign: \mathbb) is a cryptocurrency originally forked from bitcoin software. Top-level domain and Namecoin are domain Name System.

See Top-level domain and Namecoin

NAPTR record

A Name Authority Pointer (NAPTR) is a type of resource record in the Domain Name System of the Internet.

See Top-level domain and NAPTR record

NATO

The North Atlantic Treaty Organization (NATO; Organisation du traité de l'Atlantique nord, OTAN), also called the North Atlantic Alliance, is an intergovernmental military alliance of 32 member states—30 European and 2 North American.

See Top-level domain and NATO

Netherlands Antilles

The Netherlands Antilles (Nederlandse Antillen,; Antia Hulandes) was a constituent country of the Kingdom of the Netherlands.

See Top-level domain and Netherlands Antilles

Nigel Roberts

Dr Nigel Roberts FIoD FBCS FRSA is a British computer scientist.

See Top-level domain and Nigel Roberts

North Macedonia

North Macedonia, officially the Republic of North Macedonia, is a landlocked country in Southeast Europe.

See Top-level domain and North Macedonia

Nslookup

nslookup (from name server lookup) is a network administration command-line tool for querying the Domain Name System (DNS) to obtain the mapping between domain name and IP address, or other DNS records.

See Top-level domain and Nslookup

Onion routing

Onion routing is a technique for anonymous communication over a computer network.

See Top-level domain and Onion routing

OVHcloud

OVH, legally OVH Groupe SA, is a French cloud computing company which offers VPS, dedicated servers and other web services.

See Top-level domain and OVHcloud

Public Suffix List

The Public Suffix List (PSL) is a community-maintained list of rules that describe the internet domain name suffixes under which independent organisations can register their own sites. Top-level domain and Public Suffix List are domain Name System.

See Top-level domain and Public Suffix List

Punycode

Punycode is a representation of Unicode with the limited ASCII character subset used for Internet hostnames.

See Top-level domain and Punycode

A Request for Comments (RFC) is a publication in a series from the principal technical development and standards-setting bodies for the Internet, most prominently the Internet Engineering Task Force (IETF).

See Top-level domain and Request for Comments

Reverse DNS lookup

In computer networks, a reverse DNS lookup or reverse DNS resolution (rDNS) is the querying technique of the Domain Name System (DNS) to determine the domain name associated with an IP address – the reverse of the usual "forward" DNS lookup of an IP address from a domain name. Top-level domain and reverse DNS lookup are domain Name System.

See Top-level domain and Reverse DNS lookup

Second-level domain

In the Domain Name System (DNS) hierarchy, a second-level domain (SLD or 2LD) is a domain that is directly below a top-level domain (TLD). Top-level domain and second-level domain are domain Name System.

See Top-level domain and Second-level domain

Serbia

Serbia, officially the Republic of Serbia, is a landlocked country at the crossroads of Southeast and Central Europe, located in the Balkans and the Pannonian Plain.

See Top-level domain and Serbia

Serbia and Montenegro

The State Union of Serbia and Montenegro (Državna zajednica Srbija i Crna Gora) or simply Serbia and Montenegro (Srbija i Crna Gora), known until 2003 as the Federal Republic of Yugoslavia (Savezna Republika Jugoslavija), FR Yugoslavia (FRY) or simply Yugoslavia (Jugoslavija), was a country in Southeast Europe located in the Balkans that existed from 1992 to 2006, following the breakup of the Socialist Federal Republic of Yugoslavia (SFR Yugoslavia).

See Top-level domain and Serbia and Montenegro

Simple Mail Transfer Protocol

The Simple Mail Transfer Protocol (SMTP) is an Internet standard communication protocol for electronic mail transmission.

See Top-level domain and Simple Mail Transfer Protocol

Sint Maarten

Sint Maarten is a constituent country of the Kingdom of the Netherlands in the Caribbean region of North America.

See Top-level domain and Sint Maarten

SITA (business services company)

SITA is a multinational information technology company providing IT and telecommunication services to the air transport industry.

See Top-level domain and SITA (business services company)

Slovakia

Slovakia (Slovensko), officially the Slovak Republic (Slovenská republika), is a landlocked country in Central Europe.

See Top-level domain and Slovakia

Slovenia

Slovenia (Slovenija), officially the Republic of Slovenia (Slovene), is a country in southern Central Europe.

See Top-level domain and Slovenia

The Socialist Federal Republic of Yugoslavia (commonly abbreviated as SFRY or SFR Yugoslavia), commonly referred to as Socialist Yugoslavia or simply Yugoslavia, was a country in Central and Southeast Europe.

See Top-level domain and Socialist Federal Republic of Yugoslavia

Soviet Union

The Union of Soviet Socialist Republics (USSR), commonly known as the Soviet Union, was a transcontinental country that spanned much of Eurasia from 1922 to 1991.

See Top-level domain and Soviet Union

Special-use domain name

A special-use domain name is a domain name that is defined and reserved in the hierarchy of the Domain Name System of the Internet for special purposes. Top-level domain and special-use domain name are domain Name System.

See Top-level domain and Special-use domain name

SWIFT

The Society for Worldwide Interbank Financial Telecommunication (Swift), legally S.W.I.F.T. SC, is a cooperative established in 1973 in Belgium (Société Coopérative) and owned by the banks and other member firms that use its service.

See Top-level domain and SWIFT

Telephone number mapping

Telephone number mapping is a system of unifying the international telephone number system of the public switched telephone network with the Internet addressing and identification name spaces.

See Top-level domain and Telephone number mapping

TelOne Zimbabwe

TelOne Zimbabwe is a parastatal telecommunications company owned by the Zimbabwe government headquartered in Harare's Central Business District.

See Top-level domain and TelOne Zimbabwe

Tor (network)

Tor is a free overlay network for enabling anonymous communication.

See Top-level domain and Tor (network)

UUCP

UUCP (Unix-to-Unix Copy) is a suite of computer programs and protocols allowing remote execution of commands and transfer of files, email and netnews between computers.

See Top-level domain and UUCP

Uzbekistan

Uzbekistan, officially the Republic of Uzbekistan, is a doubly landlocked country located in Central Asia.

See Top-level domain and Uzbekistan

Verisign

Verisign, Inc. is an American company based in Reston, Virginia, that operates a diverse array of network infrastructure, including two of the Internet's thirteen root nameservers, the authoritative registry for the,, and generic top-level domains and the country-code top-level domains, and the back-end systems for the and sponsored top-level domains. Top-level domain and Verisign are domain Name System.

See Top-level domain and Verisign

Web browser

A web browser is an application for accessing websites.

See Top-level domain and Web browser

Writing system

A writing system comprises a particular set of symbols, called a script, as well as the rules by which the script represents a particular language.

See Top-level domain and Writing system

Zaire

Zaire, officially the Republic of Zaire, was the name of the Democratic Republic of the Congo from 1971 to 1997.

See Top-level domain and Zaire

.ac

The.ac top-level domain is the Internet country code (ccTLD) for Saint Helena, Ascension and Tristan da Cunha, used primarily for Ascension Island (Saint Helena has its own ccTLD,.sh).

See Top-level domain and .ac

.aero

.aero (derived from aeronautics) is a sponsored top-level domain (sTLD) used in the Domain Name System of the Internet.

See Top-level domain and .aero

.ai

.ai is the Internet country code top-level domain (ccTLD) for Anguilla, a British Overseas Territory in the Caribbean.

See Top-level domain and .ai

.an

.an was the Internet country code top-level domain (ccTLD) for the former Netherlands Antilles.

See Top-level domain and .an

.arpa

The domain name arpa is a top-level domain (TLD) in the Domain Name System (DNS) of the Internet.

See Top-level domain and .arpa

.aw

.aw is the Internet country code top-level domain (ccTLD) for Aruba.

See Top-level domain and .aw

.ba

.ba is the Internet country code top-level domain (ccTLD) for Bosnia and Herzegovina.

See Top-level domain and .ba

.bar

.bar is an Internet domain that is specifically geared for bars, pubs and nightclubs, including bar and restaurant guides, critics, delivery services, wine and liquor, and related industries. Top-level domain and .bar are top-level domains.

See Top-level domain and .bar

.biz

.biz is a generic top-level domain (gTLD) in the Domain Name System of the Internet.

See Top-level domain and .biz

.cd

.cd is the Internet country code top-level domain (ccTLD) for the Democratic Republic of the Congo.

See Top-level domain and .cd

.cm

.cm is the country code top-level domain (ccTLD) for Cameroon.

See Top-level domain and .cm

.com

The domain com is a top-level domain (TLD) in the Domain Name System (DNS) of the Internet.

See Top-level domain and .com

.coop

.coop is a sponsored top-level domain (sTLD) in the Domain Name System of the Internet.

See Top-level domain and .coop

.corp

.corp is an ICANN rejected generic top level domain proposed in 2012.

See Top-level domain and .corp

.cs

.cs was for several years the country code top-level domain (ccTLD) for Czechoslovakia.

See Top-level domain and .cs

.cw

.cw is the Internet country code top-level domain (ccTLD) for Curaçao.

See Top-level domain and .cw

.cz

.cz is the country code top-level domain (ccTLD) for the Czech Republic.

See Top-level domain and .cz

.dd

.dd was the assigned country code top-level domain (ccTLD) for the German Democratic Republic (East Germany).

See Top-level domain and .dd

.de

.de is the country code top-level domain (ccTLD) for Germany.

See Top-level domain and .de

.dev

.dev is a top-level domain name operated by Google.

See Top-level domain and .dev

.dk

.dk is the country code top-level domain (ccTLD) for Denmark.

See Top-level domain and .dk

.edu

The domain name.edu is a sponsored top-level domain (sTLD) in the Domain Name System of the Internet.

See Top-level domain and .edu

.example

The name example is reserved by the Internet Engineering Task Force (IETF) as a domain name that may not be installed as a top-level domain in the Domain Name System (DNS) of the Internet. Top-level domain and .example are top-level domains.

See Top-level domain and .example

.gg

.gg is the country code top-level domain for the Bailiwick of Guernsey.

See Top-level domain and .gg

.gov

The domain name gov is a sponsored top-level domain (sTLD) in the Domain Name System of the Internet.

See Top-level domain and .gov

.home

.home is an ICANN rejected generic top-level domain proposed in 2012.

See Top-level domain and .home

.hr

.hr is the Internet country code top-level domain (ccTLD) for Croatia (the country's name is Hrvatska in Croatian).

See Top-level domain and .hr

.info

.info is a generic top-level domain (gTLD) in the Domain Name System (DNS) of the Internet.

See Top-level domain and .info

.int

The domain name int is a sponsored top-level domain (sTLD) in the Domain Name System of the Internet.

See Top-level domain and .int

.invalid

The name invalid is reserved by the Internet Engineering Task Force (IETF) as a domain name that may not be installed as a top-level domain in the Domain Name System (DNS) of the Internet. Top-level domain and .invalid are top-level domains.

See Top-level domain and .invalid

.io

The Internet country code top-level domain (ccTLD).io is nominally assigned to the British Indian Ocean Territory.

See Top-level domain and .io

.je

.je is the country code top-level domain for Jersey.

See Top-level domain and .je

.kh

.kh is the Internet country code top-level domain (ccTLD) for the Kingdom of Cambodia.

See Top-level domain and .kh

.local

The domain name.local is a special-use domain name reserved by the Internet Engineering Task Force (IETF) so that it may not be installed as a top-level domain in the Domain Name System (DNS) of the Internet. Top-level domain and .local are domain Name System.

See Top-level domain and .local

.localhost

The name localhost is reserved by the Internet Engineering Task Force (IETF) as a domain name label that may not be installed as a top-level domain in the Domain Name System (DNS) of the Internet. Top-level domain and .localhost are top-level domains.

See Top-level domain and .localhost

.me

.me is the Internet country code top-level domain (ccTLD) for Montenegro.

See Top-level domain and .me

.mil

The domain name mil is the sponsored top-level domain (sTLD) in the Domain Name System of the Internet for the United States Department of Defense and its subsidiary or affiliated organizations.

See Top-level domain and .mil

.mk

.mk is the Internet country code top-level domain (ccTLD) for North Macedonia; it is administered by the Macedonian Academic Research Network (MARnet).

See Top-level domain and .mk

.museum

.museum is a sponsored top-level domain (sTLD) in the Domain Name System of the Internet used exclusively by museums, museum associations, and individual members of the museum profession, as these groups are defined by the International Council of Museums (ICOM).

See Top-level domain and .museum

.music

.music is a community-based top-level domain name (TLD) operated for the benefit of the global music community.

See Top-level domain and .music

.name

The domain name is a generic top-level domain (gTLD) in the Domain Name System of the Internet.

See Top-level domain and .name

.nato

The domain.nato was a top-level domain (TLD) in the Domain Name System (DNS) of the Internet.

See Top-level domain and .nato

.net

The domain name net is a generic top-level domain (gTLD) used in the Domain Name System of the Internet.

See Top-level domain and .net

.onion

.onion is a special-use top-level domain name designating an anonymous onion service, which was formerly known as a "hidden service", reachable via the Tor network. Top-level domain and .onion are top-level domains.

See Top-level domain and .onion

.org

The domain name.org is a generic top-level domain (gTLD) of the Domain Name System (DNS) used on the Internet.

See Top-level domain and .org

.ovh

.ovh is an active generic top-level domain (gTLD) delegated to the DNS root zone on June 20, 2014. Top-level domain and .ovh are top-level domains.

See Top-level domain and .ovh

.pro

The domain name pro is a generic top-level domain in the Domain Name System of the Internet.

See Top-level domain and .pro

.rs

.rs is the Internet country code top-level domain (ccTLD) for Serbia.

See Top-level domain and .rs

.sh

.sh is the Internet country code top-level domain (ccTLD) for the British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha, although it is primarily used in Saint Helena (Ascension Island has its own ccTLD,.ac).

See Top-level domain and .sh

.shop

.shop is a generic top-level domain (gTLD) launched in September 2016.

See Top-level domain and .shop

.si

.si is the Internet country code top-level domain (ccTLD) for Slovenia.

See Top-level domain and .si

.sk

.sk is the Internet country code top-level domain (ccTLD) for Slovakia.

See Top-level domain and .sk

.su

.su is an Internet country code top-level domain (ccTLD) that was designated for the Union of Soviet Socialist Republics (USSR) on 19 September 1990.

See Top-level domain and .su

.sx

.sx is the country code top-level domain (ccTLD) in the Domain Name System of the Internet for Sint Maarten.

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.test

is a reserved top-level domain used to test websites or web applications as an alternative to testing webpages using the default localhost. Top-level domain and .test are top-level domains.

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.th

.th is the Internet country code top-level domain (ccTLD) for Thailand.

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.tk

.tk is the Internet country code top-level domain (ccTLD) for Tokelau, a territory of New Zealand in the South Pacific.

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.tm

.tm is the Internet country code top-level domain (ccTLD) for Turkmenistan.

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.to

.to is the Internet country code top-level domain (ccTLD) of the Kingdom of Tonga.

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.uk

.uk is the Internet country code top-level domain (ccTLD) for the United Kingdom.

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.uz

.uz is the Internet country code top-level domain (ccTLD) for Uzbekistan.

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.vi

.vi is the Internet country code top-level domain (ccTLD) for the U.S. Virgin Islands.

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.web

.web is a proposed top-level domain (TLD) that was created and assigned by an auction process to several bidding companies.

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.ws

.ws is the Internet country code top-level domain (ccTLD) for Samoa.

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.xxx

.xxx (pronounced "dot triple-ecks" or "dot ecks ecks ecks") is a sponsored top-level domain (sTLD) intended as a voluntary option for pornographic sites on the Internet. Top-level domain and .xxx are top-level domains.

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.yu

.yu was the Internet country code top-level domain (ccTLD) that was assigned to SFR Yugoslavia in 1989 and was mainly used by Serbia and Montenegro and its two successor states.

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.zw

.zw is the internet country code top-level domain (ccTLD) for Zimbabwe.

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References

[1] https://en.wikipedia.org/wiki/Top-level_domain

Also known as .internal, .movie, Domain suffixes, Infrastructure top-level domain, Internet TLD, Internet TLDs, Internet extension, Internet suffix, Internet top-level domain, Internet top-level domains, TLD, TLDN, TLDs, Top Internet domain, Top Level Domain, Top Level Domains, Top domain, Top-level Internet domain, Top-level Internet domains, Top-level domain name, Top-level domain § Reserved domains, Top-level domains, Toplevel Domain.

, Jurisdiction, List of DNS record types, List of Internet top-level domains, List of TCP and UDP port numbers, Localhost, MHSnet, Montenegro, Multicast DNS, MX record, Name server, Namecoin, NAPTR record, NATO, Netherlands Antilles, Nigel Roberts, North Macedonia, Nslookup, Onion routing, OVHcloud, Public Suffix List, Punycode, Request for Comments, Reverse DNS lookup, Second-level domain, Serbia, Serbia and Montenegro, Simple Mail Transfer Protocol, Sint Maarten, SITA (business services company), Slovakia, Slovenia, Socialist Federal Republic of Yugoslavia, Soviet Union, Special-use domain name, Sponsored top-level domain, SWIFT, Telephone number mapping, TelOne Zimbabwe, Tor (network), UUCP, Uzbekistan, Verisign, Web browser, Writing system, Zaire, .ac, .aero, .ai, .an, .arpa, .aw, .ba, .bar, .biz, .cd, .cm, .com, .coop, .corp, .cs, .cw, .cz, .dd, .de, .dev, .dk, .edu, .example, .gg, .gov, .home, .hr, .info, .int, .invalid, .io, .je, .kh, .local, .localhost, .me, .mil, .mk, .museum, .music, .name, .nato, .net, .onion, .org, .ovh, .pro, .rs, .sh, .shop, .si, .sk, .su, .sx, .test, .th, .tk, .tm, .to, .uk, .uz, .vi, .web, .ws, .xxx, .yu, .zw.

Top-level domain, the Glossary

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