List of Internet top-level domains
From Wikipedia, the free encyclopedia
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. A list of the top-level domains by the Internet Assigned Numbers Authority (IANA) is maintained at the Root Zone Database.[1] IANA also oversees the approval process for new proposed top-level domains for ICANN. As of April 2021[update], their root domain contains 1502 top-level domains.[2][3] As of March 2021[update], the IANA root database includes 1589 TLDs. That also includes 68 that are not assigned (revoked), 8 that are retired and 11 test domains.[1] Those are not represented in IANA's listing[2] and are not in root.zone file (root.zone file also includes one root domain).[4]
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Types
IANA distinguishes the following groups of top-level domains:[5]
- infrastructure top-level domain (ARPA)
- generic top-level domains (gTLD)
- generic-restricted top-level domains (grTLD)
- sponsored top-level domains (sTLD)
- country code top-level domains (ccTLD)
- test top-level domains (tTLD)
Original top-level domains
Summarize
Perspective
Seven generic top-level domains were created early in the development of the Internet, and predate the creation of ICANN in 1998.
- Name: DNS names
- Entity: intended use
- Administrator: managers
- Notes: general remarks
- IDN: support for internationalized domain names (IDN)
- DNSSEC: presence of DS records for Domain Name System Security Extensions
Name | Entity | Administrator[6] | Notes | IDN | DNSSEC | SLD | IPv6 |
---|---|---|---|---|---|---|---|
.com | commercial | Verisign | This is an open TLD; any person or entity is permitted to register. Though originally intended for use by for-profit business entities, for a number of reasons it became the main TLD for domain names and is currently used by all types of entities including nonprofits, schools, and private individuals. Domain name registrations may be successfully challenged if the holder cannot prove an outside relation justifying reservation of the name,[7] to prevent "squatting". It was originally administered by the United States Department of Defense. | Yes | Yes | Yes | Yes |
.org | organization | Public Interest Registry | This is an open TLD; any person or entity is permitted to register. Originally created as a miscellaneous category as stated in RFC 920 (October 1984) "...any other domains meeting the second level requirements," and clarified in RFC 1591 (March 1994), "This domain is intended as the miscellaneous TLD for organizations that didn't fit anywhere else. Some non-government organizations may fit here."[8][9] While mainly non-profits have used this domain, it was never restricted from miscellaneous use. | Yes | Yes | Yes | Yes |
.net | network | Verisign | This is an open TLD; any person or entity is permitted to register. According to RFC 1591 (March 1994) "This domain is intended to hold only the computers of network providers."[9] | Yes | Yes | Yes | Yes |
.int | international | Internet Assigned Numbers Authority | The .int TLD is strictly limited to organizations, offices, and programs endorsed by a treaty between two or more nations. However, a few grandfathered domains do not meet these criteria. | No | Yes | Yes | Yes |
.edu | education | Educause (via Verisign) | The .edu TLD is limited to specific higher educational institutions such as, but not limited to, trade schools and universities. In the U.S., its use was restricted in 2001 to post-secondary institutions accredited by an agency on the list of nationally recognized accrediting agencies. This domain is therefore almost exclusively used by colleges and universities. Some institutions, such as the Exploratorium, that do not meet the current registration criteria have grandfathered domain names. | No | Yes | Yes | Yes |
.gov | U.S. national and state government agencies | Cybersecurity and Infrastructure Security Agency (via Verisign) | The .gov TLD is limited to United States governmental entities and agencies as well as qualifying state, county and local municipal government agencies, and tribal governments. | No | Yes | Yes | Yes |
.mil | U.S. military | United States Department of Defense | The .mil TLD is limited to divisions, services and agencies of the United States Department of Defense. | No | Yes | Yes | Yes |
Infrastructure top-level domains
Infrastructure | Entity | Notes | IDN | DNSSEC |
---|---|---|---|---|
.arpa | "Address and Routing Parameter Area" | Originally assigned to the Advanced Research Projects Agency in the early days on the Internet, .arpa is now exclusively used as an Internet infrastructure TLD. | No | Yes |
Country code top-level domains
As of 20 May 2017, there were 255 country-code top-level domains, purely in the Latin alphabet, using two-character codes. As of June 2022[update], the number was 316, with the addition of internationalized domains.[1]
Proposed internationalized ccTLDs
Internationalized domain names have been proposed for Japan and Libya.
ICANN-era generic top-level domains
- Name: DNS name
- Target market: intended use
- Restrictions: restrictions, if any, on who can register, and how the domain can be used
- Operator: entity the registry has been delegated to
- IDN: support for internationalized domain names (IDN)
- DNSSEC: presence of DS records for Domain Name System Security Extensions
English
Chinese
Name | Chinese term | Translation | Restrictions | Operator | IDN | DNSSEC |
---|---|---|---|---|---|---|
.ren | 人 rén | "people/person" in Mandarin pinyin | Restricted TLD[10] | (Cancelled)[11] | Unknown | Yes |
.shouji | 手机 shǒujī | mobile phone | — | QIHOO 360 TECHNOLOGY CO. LTD. | ||
.tushu | 图书 túshū | books | — | Amazon Registry Services, Inc. | ||
.wanggou | 网购 wǎnggòu | online shopping | — | Amazon Registry Services, Inc. | ||
微博 wēibó | microblogging | — | Sina Corporation | |||
.xihuan | 喜欢 xǐhuān | like | — | QIHOO 360 TECHNOLOGY CO. LTD. | ||
.xin | 信 xìn | credit; honest | — | Alibaba Group |
French
Name | Translation | Restrictions | Operator | IDN | DNSSEC |
---|---|---|---|---|---|
.arte | "ARTE means Association relating to European television" | — | Association Relative à la Télévision Européenne G.E.I.E. | [12] | |
.clinique | "clinic or hospital" | — | The Estée Lauder Companies Inc. | [12] | |
.luxe | "luxury" | — | Minds + Machines[n 1] | Unknown | Yes |
.maison | "house" | — | Identity Digital[ID 1] | Yes | Yes |
.moi | "me" | — | Amazon Registry Services, Inc. | [12] | |
.rsvp | Invitations and replies | — | Charleston Road Registry Inc. (Google)[n 2] | Unknown | Yes |
.sarl | Société à responsabilité limitée, Francophone Limited liability company | — | Identity Digital[ID 2] | Yes | Yes |
German
Name | Translation | Restrictions | Operator | IDN | DNSSEC |
---|---|---|---|---|---|
.epost | — | Deutsche Post AG | |||
.gmbh | GmbH | Upon request, you will be required to demonstrate current or pending designation as a GmbH company whose existence can be validated with the respective public authorities in Austria, Germany, Liechtenstein or Switzerland. | Identity Digital | Yes | Yes |
.haus | "house" | — | Identity Digital[n 3] | Yes | Yes |
.immobilien | "real estate" | — | Identity Digital[n 3] | Yes[13] | Yes |
.jetzt | "now" | — | Identity Digital | Yes | Yes |
.kaufen | "buy" | — | Identity Digital[n 3] | Yes[13] | Yes |
.kinder | "children" | restricted .brand TLD | Ferrero Trading Lux S.A. | ||
.reise | "travel" | Must be an eligible member of the travel business community; also, domain must be used for travel-related purposes.[14] | Identity Digital | Yes[13] | Yes |
.reisen | "traveling" | — | Identity Digital[ID 3] | Yes[13] | Yes |
.schule | "school" | — | Identity Digital[ID 4] | Yes | Yes |
.versicherung | "insurance" | — | Latin script[13] | Yes |
Hindi
Italian
Name | Translation | Restrictions | Operator | IDN | DNSSEC |
---|---|---|---|---|---|
.casa | "house" | — | Minds + Machines[n 1] | Yes | Yes |
.immo | French, German,[15] and Italian abbreviation for "real estate" | — | Identity Digital[ID 5] | Yes | Yes |
.moda | "fashion" | — | Identity Digital[n 3] | Yes[13] | Yes |
.voto | "vote", for election and campaign websites | Must use the domain in connection with a "clearly identified political/democratic process."[16] Initially only available to registrations in the United States.[17] | Identity Digital | Unknown | Yes |
Portuguese
Spanish
Name | Translation | Restrictions | Operator | IDN | DNSSEC |
---|---|---|---|---|---|
.abogado | "lawyer" | To be restricted to licensed lawyers or law firms.[18] | Minds + Machines[n 1] | Unknown | Yes |
.futbol | "Football" (soccer) | — | Identity Digital[n 3] | Yes | Yes |
.gratis | "free" | — | Identity Digital[ID 6] | Yes | Yes |
.hoteles | "hotels" | — | Travel Reservations SRL | ||
.juegos | "games" | — | Uniregistry | Yes[19] | Yes |
.ltda | companies in South America | Domains are limited to registered LTDAs (like LLCs) in Brazil, Colombia, Chile, and Ecuador.[20] | InterNetX | Unknown | Yes |
.soy | "I am" Also refers to the soybean and its food derivatives | — | Charleston Road Registry Inc. (Google)[n 2] | Latin script, Japanese[21] | Yes |
.tienda | "shop", "store" | — | Identity Digital | Yes | Yes |
.uno | "one", for websites targeting Spanish speaking consumers | — | Spanish | Yes | |
.viajes | "travel" or "trips" | — | Identity Digital | Spanish | Yes |
.vuelos | "flights" | — | Travel Reservations SRL | Yes | Yes |
Internationalized generic top-level domains
Summarize
Perspective
All of these TLDs are internationalized domain names (IDN) and support second-level IDNs.
- Notes: general remarks and intended use
- DNSSEC: presence of DS records for Domain Name System Security Extensions
Arabic script
DNS Name | IDN | Language | Script | Transliteration | English Translation | Notes | DNSSEC |
---|---|---|---|---|---|---|---|
xn--4gbrim[22] | .موقع | Arabic | Arabic | mawqiʿ | "site" or "location" | Open TLD | Yes |
xn--fhbei[22] | .كوم | Arabic | kwm | com | Owned by: VeriSign Sarl[12] | ||
xn--mgbb9fbpob[22] | .موبايلي | Arabic | mūbāylī | Mobily | Owned by: GreenTech Consultancy Company W.L.L.[12] | ||
xn--mgbi4ecexp[22] | .كاثوليك | Arabic | kāthūlīk | Catholic | Owned by: Pontificium Consilium de Comunicationibus Socialibus (PCCS) (Pontifical Council for Social Communication)[12] | ||
xn--ngbc5azd[22] | .شبكة | Arabic | Arabic | shabaka | "network" | Open TLD | Yes |
xn--ngbe9e0a[22] | .بيتك | Arabic | baytak | your home | Owned by: Kuwait Finance House[12] | ||
xn--mgbab2bd[22] | .بازار | Persian | Arabic | bâzâr | "market", "bazaar" | Open TLD | Yes |
Chinese characters
DNS Name | IDN | Language | Script | Transliteration | English Translation | Notes | DNSSEC |
---|---|---|---|---|---|---|---|
xn--3ds443g[22] | .在线 | Chinese | Chinese (Simplified) | zàixiàn | "online" | Open TLD. The Chinese Government quickly bought 20,000 internationalized subdomains for localities.[23] | Yes |
xn--fiq228c5hs[22] | .中文网 | Chinese | Chinese (Simplified) | Zhōngwén wǎng | "(written) Chinese (language) network" | Open TLD. The Chinese Government quickly bought 20,000 IDN for localities.[23] | Yes |
xn--ses554g[22] | .网址 | Chinese | Chinese (Simplified) | wǎngzhǐ | "network address" or "website" | Open TLD | Yes |
xn--5tzm5g[22] | .网站 | Chinese | Chinese (Simplified) | wǎngzhàn | "website" | Open TLD | Yes |
xn--io0a7i[22] | .网络 | Chinese | Chinese (Simplified) | wǎngluò | "network" | Open TLD | Yes |
xn--55qx5d[22] | .公司 | Chinese | Chinese (Simplified and Traditional) | gōngsī | "business organization" or "company" | Open TLD | Yes |
xn--czru2d[22] | .商城 | Chinese | Chinese (Simplified and Traditional) | shāngchéng | "mall" | Open TLD | Yes |
xn--nqv7f[22] | .机构 | Chinese | Chinese (Simplified) | jīgòu | "agency" | Open TLD | Yes |
xn--6qq986b3xl[22] | .我爱你 | Chinese | Chinese (Simplified) | wǒ ài nǐ | "I love you" | Open TLD | Yes |
xn--czr694b[22] | .商标 | Chinese | Chinese (Simplified) | shāngbiāo | "trademark" | Open TLD | Yes |
xn--rhqv96g[22] | .世界 | Chinese and Japanese | Chinese (Simplified and Traditional), Kanji (Shinjitai and Kyūjitai) | shìjiè sekai | "world" | Open TLD | Yes |
xn--3bst00m[22] | .集团 | Chinese | Chinese (Simplified) | jítuán | "conglomerate" | Open TLD | Yes |
xn--30rr7y[22] | .慈善 | Chinese and Japanese | Chinese (Simplified and Traditional), Kanji (Kyūjitai and Shinjitai) | císhàn jizen | "philanthropy" | Open TLD | Yes |
xn--45q11c[22] | .八卦 | Chinese | Chinese (Simplified and Traditional) | bāguà | "gossip" | Open TLD | Yes |
xn--55qw42g[22] | .公益 | Chinese and Japanese | Chinese (Simplified and Traditional), Kanji (Shinjitai and Kyūjitai) | gōngyì kōeki | "philanthropy" | Open TLD | Yes |
xn--g2xx48c[22] | .购物 | Chinese | Chinese (Simplified and Traditional) | gòuwù | "shopping" | Open TLD | Yes |
xn--kput3i[22] | .手机 | Chinese | Chinese (Simplified and Traditional) | shǒujī | "cell phone" | Open TLD | Yes |
xn--mxtq1m[22] | .政府 | Hani Chinese | Chinese (Simplified and Traditional) | zhèngfǔ | "public affairs | Second level restricted to ISO3166-1 country codes; third level registrations restricted to governmental organizations, or public institutions[24] | Yes |
Cyrillic script
DNS Name | IDN | Language | Script | Transliteration | English Translation | Notes | DNSSEC |
---|---|---|---|---|---|---|---|
xn--d1acj3b[22] | .дети | Russian | Cyrillic (Russian) | dyeti | "kids" or "children" | Open TLD | Yes |
xn--80aqecdr1a[22] | .католик | Cyrillic | Katolik | "сatholic" (as noun) | Owned by: Pontificium Consilium de Comunicationibus Socialibus (Pontifical Council for Social Communications)[12] | ||
xn--j1aef[22] | .ком | Russian | Cyrillic (Russian) | kom | "com" | Owned by: VeriSign Sarl | |
xn--80asehdb[22] | .онлайн | Russian | Cyrillic (Russian) | onlain | "online" | Open TLD | Yes |
xn--c1avg[22] | .орг | Russian | Cyrillic (Russian) | org | "org" or "organization" | Open TLD | Yes |
xn--80aswg[22] | .сайт | Russian | Cyrillic (Russian) | sait | "site" | Open TLD | Yes |
Japanese characters
DNS Name | IDN | Language | Script | Transliteration | English Translation | Notes | DNSSEC |
---|---|---|---|---|---|---|---|
xn--q9jyb4c[22] | .みんな | Japanese | Hiragana | minna | everyone | Open TLD[25] | Yes |
xn--1ck2e1b[22] | .セール | Japanese | Katakana | sēru | sale | Owned by: Amazon Registry Services, Inc.[12] | |
xn--bck1b9a5dre4c[22] | .ファッション | Japanese | Katakana | fasshon | fashion | ||
xn--cck2b3b[22] | .ストア | Japanese | Katakana | sutoa | store | ||
xn--eckvdtc9d[22] | .ポイント | Japanese | Katakana | pointo | point | ||
xn--gckr3f0f[22] | .クラウド | Japanese | Katakana | kuraudo | cloud | ||
xn--tckwe[22] | .コム | Japanese | Katakana | komu | com | Owned by: VeriSign Sarl[12] |
Other script
DNS Name | IDN | Language | Script | Transliteration | English Translation | Notes | DNSSEC |
---|---|---|---|---|---|---|---|
xn--54b7fta0cc[26] | .বাংলা | Bengali | Bengali | Bānlā | Bangla | Open TLD | |
xn‑‑h2brj9c[27] | .भारत | Hindi | Devanagari | bharat | India | ||
xn--i1b6b1a6a2e[22] | .संगठन | Marathi, Hindi | Devanagari | saṅgaṭhana | "organization" | Open TLD | Yes |
xn--11b4c3d[22] | .कॉम | Marathi, Hindi | Devanagari | kom | com | ||
xn--c2br7g[22] | .नेट | Marathi, Hindi | Devanagari | net | net | ||
xn--mk1bu44c[22] | .닷컴 | Korean | Hangul | datkeom / tatk'ŏm | dotcom | ||
xn--t60b56a[22] | .닷넷 | Korean | Hangul | datnet / tatnet | dotnet | ||
xn--9dbq2a[22] | .קום | Hebrew | Hebrew | qwm | com | Open TLD | Yes |
xn--42c2d9a[22] | .คอม | Thai | Thai | khom | com |
Geographic top-level domains
- Name: DNS name
- Entity: Target geographic area
- Notes: general remarks
- IDN: support for internationalized domain names (IDN)
- DNSSEC: presence of DS records for Domain Name System Security Extensions
Africa
Name | Entity | Notes | IDN | DNSSEC |
---|---|---|---|---|
.africa | Africa | [12][28] | Yes | |
.capetown | Cape Town, South Africa | [29] | Unknown | Yes |
.durban | ![]() | [30] | Unknown | Yes |
.joburg | ![]() | [31] | Unknown | Yes |
Asia
Name | Entity | Notes | IDN | DNSSEC |
---|---|---|---|---|
.abudhabi | ![]() | [12] | Yes | |
.arab | ![]() | [12] | Yes | |
.asia | Asia–Pacific region | This is a TLD for companies, organizations, and individuals based in the region of Asia, Australia, and the Pacific. | Chinese, Japanese, Korean[13] | Yes |
.doha | Doha, Qatar | [12] | ||
.dubai | Dubai, UAE | [12] | Yes | |
.krd | ![]() | This is a TLD for companies, organizations, and individuals based in the region of Kurdistan[32][33] | Kurdish | Yes |
.kyoto | ![]() | [34] | Yes | |
.nagoya | ![]() | [35] | Japanese[13] | Yes |
.okinawa | ![]() | [36] | Japanese | Yes |
.osaka | ![]() | [12] | Yes | |
.ryukyu | Ryukyu Islands, Japan | [37] | Unknown | Yes |
.taipei | Taipei, Taiwan | Introduced in September 2014[38] | Unknown | Yes |
.tokyo | ![]() | [39] | Yes | Yes |
.yokohama | ![]() | [40] | Japanese | Yes |
Europe
Name | Entity | Notes | IDN | DNSSEC |
---|---|---|---|---|
.alsace | ![]() | "The purpose of .ALSACE is to bring Alsatian culture and identity to the Internet, make our region more visible internationally and boost the digital economy in Alsace."[41] | Unknown | Yes |
.bzh | ![]() |
Breizh in Breton.[42] This is a TLD for Web sites in the Breton language or related to Breton culture | French[13] | Yes |
.corsica | ![]() |
TLD Related to Corsican Culture | Unknown | Yes |
.eus | ![]() |
Euskal Herria in Basque. Web sites must be in the Basque language and are checked periodically.[43] | Unknown | Yes |
.paris | ![]() |
"Must be an individual or corporate entity with a bona fide presence in the Greater area of Paris"[44] | Yes | Yes |
Name | Entity | Notes | IDN | DNSSEC |
---|---|---|---|---|
.bcn | ![]() | [12] | Yes | |
.barcelona | Unknown | Yes | ||
.cat | ![]() |
This is a TLD for Web sites in the Catalan language or related to Catalan culture.[45] | Catalan[13] | Yes |
.eus | ![]() |
Euskal Herria in Basque. Web sites must be in the Basque language and are checked periodically.[43] | Unknown | Yes |
.gal | ![]() |
This is a TLD for Web sites in the Galician language or related to Galician culture.[46] | Unknown | Yes |
.madrid | ![]() |
[47] | Unknown | Yes |
Name | Entity | Notes | IDN | DNSSEC |
---|---|---|---|---|
.bayern | ![]() | [48] | Yes | Yes |
.berlin | ![]() | Must have a connection to Berlin, Germany for example a company based in Berlin or a person from Berlin etc.[49] | Latin and Cyrillic scripts[13] | Yes |
.cologne | ![]() |
[50] | Yes | Yes |
.koeln | [51] | Yes | Yes | |
.hamburg | ![]() |
Latin script[13] | Yes | |
.nrw | ![]() |
[52] | Yes | Yes |
.ruhr | Ruhr | [53] | German[13] | Yes |
.saarland | ![]() |
[54] | Unknown | Yes |
Name | Entity | Notes | IDN | DNSSEC |
---|---|---|---|---|
.eu | ![]() | [55] Available for any person, company or organization based in the European Union. | Yes | Yes |
.amsterdam | ![]() | [56] | Unknown | Yes |
.bar | ![]() | [12] Mostly used for bars and other alcohol facilities worldwide | Unknown | Yes |
.brussels | ![]() | [57] | Latin script[13] | Yes |
.cymru | ![]() | [58] | Welsh[13] | Yes |
.wales | [58] | Welsh[13] | Yes | |
.frl | ![]() | Fryslân in (West) Frisian, one of the twelve provinces in the Netherlands.[59] | Unknown | Yes |
.gent | ![]() |
[60] | Unknown | Yes |
.helsinki | ![]() | Unknown | Yes | |
.irish | ![]() | Unknown | Yes | |
.ist | İstanbul, Turkey | Unknown | Yes | |
.istanbul | Unknown | Yes | ||
.london | London, United Kingdom | [61] | Yes | Yes |
.moscow | ![]() | [62] | Yes | Yes |
.scot | ![]() |
[63] | Unknown | Yes |
.stockholm | ![]() | [12] | Yes[64] | Yes |
.swiss | ![]() | [12] | Yes[65] | Yes |
.tatar | Tatar peoples and places | Tatarstan is a region in Russia, though this TLD is meant for the global Tatar community.[66] | Unknown | Yes |
.tirol | ![]() | [67] | Yes[13] | Yes |
.vlaanderen | ![]() |
[68] | Latin script[13] | Yes |
.wien | ![]() | [69] | Latin script[13] | Yes |
.zuerich | ![]() | [70] | Unknown | Yes |
.su | ![]() | [71] | Yes[13] | Yes |
North America
Oceania
South America
Internationalized geographic top-level domains
DNS name | Display name | Entity | Language | Script | Transliteration | Notes | Other TLD | IDN | DNSSEC |
---|---|---|---|---|---|---|---|---|---|
xn--1qqw23a[22] | .佛山 | Foshan, China | Chinese | Chinese (Simplified) | fat6 saan1 | [82] | Yes | Yes | |
xn--xhq521b[22] | .广东 | Guangdong, China | Chinese | Chinese (Simplified) | gwong2 dung1 | [12] | |||
xn--80adxhks[22] | .москва | Moscow, Russia | Russian | Cyrillic (Russian) | moskva | [83] | .moscow | Russian[13] | Yes |
xn--p1acf[22] | .рус | Russian language, post-Soviet states | Russian | Cyrillic (Russian) | rus | [12] | .su | ||
xn--mgbca7dzdo[22] | .ابوظبي | Abu Dhabi | Arabic | Arabic | Abū Ẓabī | [12] | .abudhabi | ||
xn--ngbrx[22] | .عرب | Arab | Arabic | Arabic | ‘Arab | [12] |
Brand and corporate top-level domains
- Name: DNS name
- Entity: company and/or brand
- Notes: general remarks
- IDN: support for internationalized domain names (IDN)
- DNSSEC: presence of DS records for Domain Name System Security Extensions
Internationalized brand top-level domains
DNS name | IDN TLD | Entity | Script | Transliteration | Comments | DNSSEC |
---|---|---|---|---|---|---|
xn--jlq480n2rg | .亚马逊 | Amazon | Chinese (Simplified) | Yàmǎxùn | [158] | Yes |
xn—cckwcxetd | .アマゾン | Amazon | Katakana | amazon | [159] | Yes |
xn--mgba3a3ejt | .ارامكو | Aramco Services Company | Arabic | [12] | ||
xn--mgbaakc7dvf | .اتصالات | Emirates Telecommunications Corporation (trading as Etisalat) | Arabic | [12] | ||
xn--8y0a063a | .联通 | China United Network Communications Corporation Limited | Chinese (Simplified) | Liántōng | [12] | |
xn--6frz82g | .移动 | China Mobile Communications Corporation | Chinese (Simplified) | Yídòng | ||
xn--fiq64b | .中信 | CITIC Group | Chinese | zhōngxìn | [160] | Yes |
xn--5su34j936bgsg | .香格里拉 | Shangri‐La International Hotel Management Limited | Chinese | Xiānggélǐlā | [12] | |
xn--b4w605ferd | .淡马锡 | Temasek Holdings (Private) Limited | Chinese (Simplified) | Dànmǎxī | [12] | |
xn--3oq18vl8pn36a | .大众汽车 | Volkswagen (China) Investment Co., Ltd. | Chinese (Simplified) | Dàzhòngqìchē | [12] | |
xn--vermgensberater-ctb | .vermögensberater | Deutsche Vermögensberatung Aktiengesellschaft | Latin | [161] | Yes | |
xn--vermgensberatung-pwb | .vermögensberatung | Deutsche Vermögensberatung Aktiengesellschaft | Latin | [162] | Yes | |
xn--qcka1pmc | .グーグル | Katakana | gūguru | [163] | Yes | |
xn--flw351e | .谷歌 | Chinese | gǔgē | [164] | Yes | |
xn--estv75g | .工行 | Industrial and Commercial Bank of China Limited | Chinese | Gōngháng | [12] | |
xn--w4rs40l | .嘉里 | Kerry Trading Co. Limited | Chinese | Jiālǐ | [12] | |
xn--w4r85el8fhu5dnra | .嘉里大酒店 | Kerry Trading Co. Limited | Chinese | Jiālǐdàjiǔdiàn | [12] | |
xn--kcrx77d1x4a | .飞利浦 | Koninklijke Philips N.V. | Chinese (Simplified) | Fēilìpǔ | [12] | |
xn--jlq61u9w7b | .诺基亚 | Nokia Corporation | Chinese (Simplified) | Nuòjīyà | [12][165] | |
xn--fzys8d69uvgm | .電訊盈科 | PCCW Enterprises Limited | Chinese (Traditional) | din6 soen3 jing4 fo1 | [12] | |
xn--cg4bki | .삼성 | Samsung | Hangul | samseong | [166] | Yes |
Special-use domains
ICANN/IANA has created some special-use domain names which are meant for technical purposes. ICANN/IANA owns all of the special-use domain names.[167]
Name | Entity | Notes | IDN |
---|---|---|---|
.example | Not installed as a domain name, but usable in text as an example. (example.com, example.net, and example.org are also reserved for this purpose but are active sites.) |
Unknown | |
.internal | Not installed as a domain name, but usable in private and internal networks. | Unknown | |
.invalid | Not installed as a domain name, but usable in testing as a domain which wouldn't work. | Unknown | |
.local | Local network. Must be used with multicast DNS (mDNS).[168] | Unknown | |
.localhost | Points back to own computer. | Unknown | |
.onion | Connection to the Tor network. | Unknown | |
.test | Meant for testing DNS software. | Unknown |
Non-IANA domains
Summarize
Perspective
Besides the TLDs managed (or at least tracked) by IANA or ICANN, other independent groups have created, or had attempted to create, their own TLDs with varying technical specifications, functions, and outcomes.
Internet Engineering Task Force proposals for local TLDs
The IETF has submitted several requests for comments on TLDs that could be used to represent local devices and services.
Name | RFC | Notes |
---|---|---|
.home.arpa | RFC 8375[169] | A special-use domain for non-unique use in residential home networks. |
.internal | RFC 6762 Appendix G[170] | ICANN has registered this top-level domain for private use.[171] |
.intranet | The IETF does not recommend use of unregistered top-level domains at all, but should network operators decide to do this, the following top-level domains have been used on private internal networks without the problems caused by trying to reuse ".local" for this purpose. | |
.private | ||
.corp | Mentioned by ICANN for causing a name collision.[172] | |
.home | ||
.lan | Many routers automatically append ".lan" to local device hostnames, including those that use OpenWrt. |
Blockchain-registered
Blockchain-based domains are registered and exchanged using a public blockchain like Ethereum. Oftentimes, these domains serve specific functions such as creating human-readable references to smart contract addresses used in DApps or personal wallet addresses.[173] Generally, these non-standard domains are unreachable through the normal DNS resolution process and instead require clients to use some sort of transparent web proxy or gateway to access them
Name | Blockchain | Notes |
---|---|---|
N/A | Handshake | Handshake is both an alternative DNS root zone and a domain name-centric blockchain meant for managing TLDs in a decentralized way which allows virtually any domain to be registered as a TLD by end users. The project intends to be a more resilient and distributed implementation of the global root zone without needing a centralized organization, like ICANN, to manage or operate it. However, it doesn't aim to outright replace the existing root zone, as it reserves all existing TLDs so that a query for wikipedia.org, for example, that is sent to a Handshake node can be redirected to the traditional root.[174] |
.eth | Ethereum | Domains under the .eth TLD are primarily used as human-readable aliases to Ethereum wallet addresses, rather than IP addresses,[175] though some efforts into expanding the use of .eth into the traditional DNS space have been made. |
.crypto, .zil | Ethereum, Zilliqa | Both .crypto and .zil aim to make cryptocurrency wallet address resolution easier, with the exception that, unlike the other examples mentioned here, the two TLDs are the product of a for-profit company, Unstoppable Domains, that markets the domains as an alternative DNS root despite being entirely dependent on the traditional root zone.[176] |
.bit | Namecoin | Namecoin's .bit TLD technically operates as a single-domain DNS root, though has historically peered with the OpenNIC root zone to provide greater accessibility. The popularity and usage of .bit domains is much lower than the other projects mentioned, despite it being the earliest example. This is primarily due to the negative reputation Namecoin has garnered after .bit domains became popular for sharing and distributing illegal or illicit content such as malware, which ultimately prompted OpenNIC to end its peering agreement and stop serving the TLD in its root zone in 2018.[177] |
.xlm | Stellar | Soroban domain allows Stellar's blockchain addresses to be shortened as a .xlm address using a Soroban smart contract.[178] |
Alternate roots
In the case of alternative DNS roots, organizations or projects make use of the same mechanisms of the DNS but instead take on the role of ICANN in managing and administering an entirely separate root zone, thus having the ability to create new TLDs independently. However, this doesn't make these domains any less isolated from the rest of the internet, though the ability for clients to resolve them theoretically only requires switching to a recursive DNS resolver that recognizes and serves records underneath the alternate root zone.
Name | Root | Notes |
---|---|---|
N/A | Handshake | The list of registered TLDs on the Handshake blockchain is too large and dynamic to enumerate here. |
.bbs .chan .cyb .dyn .geek .gopher .indy .libre .neo .null .o .oss .oz .parody .pirate | OpenNIC | |
.fur | FurNIC | |
.lib .coin .emc .bazar | Emercoin | |
.ku .te .ti .uu .ko .rm | New Nations |
See also
- Top-level domain
- Country code top-level domain
- Generic top-level domain
- IDN Test TLDs
- ISO 3166-1 alpha-2, the standard for two-letter country codes, which most ccTLDs are based on
- Proposed top-level domain
- Second-level domain, information about .co.jp, .co.uk, .co.kr, .co.nf, etc.
- Public Suffix List
Explanatory notes
Internet Domain Notes
Citations
External links
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