Com esta “moda” de domínios curtos, saber as extensões de domínio de todo o mundo, ajuda muito na hora de criar um domínio adequado e curto para sus empresa ou negócio.
O IANA (Internet Assigned Numbers Authority) é a entidade que mantém uma lista on line de todas as extensões de domínios de todo o mundo, organizadas em ordem alfabética.
Segue abaixo a lista ou você pode ir até a página para checar as extensões disponíveis para registro e também as informações de cada extensão disponível.
Segue abaixo a lista atualizada em 22/06/2017.
| DOMÍNIO | TIPO | ORGANIZAÇÃO VINCULADA |
|---|---|---|
| .aaa | generic | American Automobile Association, Inc. |
| .aarp | generic | AARP |
| .abarth | generic | Fiat Chrysler Automobiles N.V. |
| .abb | generic | ABB Ltd |
| .abbott | generic | Abbott Laboratories, Inc. |
| .abbvie | generic | AbbVie Inc. |
| .abc | generic | Disney Enterprises, Inc. |
| .able | generic | Able Inc. |
| .abogado | generic | Top Level Domain Holdings Limited |
| .abudhabi | generic | Abu Dhabi Systems and Information Centre |
| .ac | country-code | Network Information Center (AC Domain Registry) c/o Cable and Wireless (Ascension Island) |
| .academy | generic | Half Oaks, LLC |
| .accenture | generic | Accenture plc |
| .accountant | generic | dot Accountant Limited |
| .accountants | generic | Knob Town, LLC |
| .aco | generic | ACO Severin Ahlmann GmbH & Co. KG |
| .active | generic | Active Network, LLC |
| .actor | generic | United TLD Holdco Ltd. |
| .ad | country-code | Andorra Telecom |
| .adac | generic | Allgemeiner Deutscher Automobil-Club e.V. (ADAC) |
| .ads | generic | Charleston Road Registry Inc. |
| .adult | generic | ICM Registry AD LLC |
| .ae | country-code | Telecommunication Regulatory Authority (TRA) |
| .aeg | generic | Aktiebolaget Electrolux |
| .aero | sponsored | Societe Internationale de Telecommunications Aeronautique (SITA INC USA) |
| .aetna | generic | Aetna Life Insurance Company |
| .af | country-code | Ministry of Communications and IT |
| .afamilycompany | generic | Johnson Shareholdings, Inc. |
| .afl | generic | Australian Football League |
| .africa | generic | ZA Central Registry NPC trading as Registry.Africa |
| .ag | country-code | UHSA School of Medicine |
| .agakhan | generic | Fondation Aga Khan (Aga Khan Foundation) |
| .agency | generic | Steel Falls, LLC |
| .ai | country-code | Government of Anguilla |
| .aig | generic | American International Group, Inc. |
| .aigo | generic | aigo Digital Technology Co,Ltd. |
| .airbus | generic | Airbus S.A.S. |
| .airforce | generic | United TLD Holdco Ltd. |
| .airtel | generic | Bharti Airtel Limited |
| .akdn | generic | Fondation Aga Khan (Aga Khan Foundation) |
| .al | country-code | Electronic and Postal Communications Authority – AKEP |
| .alfaromeo | generic | Fiat Chrysler Automobiles N.V. |
| .alibaba | generic | Alibaba Group Holding Limited |
| .alipay | generic | Alibaba Group Holding Limited |
| .allfinanz | generic | Allfinanz Deutsche Vermögensberatung Aktiengesellschaft |
| .allstate | generic | Allstate Fire and Casualty Insurance Company |
| .ally | generic | Ally Financial Inc. |
| .alsace | generic | REGION GRAND EST |
| .alstom | generic | ALSTOM |
| .am | country-code | “Internet Society” Non-governmental Organization |
| .americanexpress | generic | American Express Travel Related Services Company, Inc. |
| .americanfamily | generic | AmFam, Inc. |
| .amex | generic | American Express Travel Related Services Company, Inc. |
| .amfam | generic | AmFam, Inc. |
| .amica | generic | Amica Mutual Insurance Company |
| .amsterdam | generic | Gemeente Amsterdam |
| .an | country-code | Retired |
| .analytics | generic | Campus IP LLC |
| .android | generic | Charleston Road Registry Inc. |
| .anquan | generic | QIHOO 360 TECHNOLOGY CO. LTD. |
| .anz | generic | Australia and New Zealand Banking Group Limited |
| .ao | country-code | Faculdade de Engenharia da Universidade Agostinho Neto |
| .aol | generic | AOL Inc. |
| .apartments | generic | June Maple, LLC |
| .app | generic | Charleston Road Registry Inc. |
| .apple | generic | Apple Inc. |
| .aq | country-code | Antarctica Network Information Centre Limited |
| .aquarelle | generic | Aquarelle.com |
| .ar | country-code | Presidencia de la Nación – Secretaría Legal y Técnica |
| .arab | generic | League of Arab States |
| .aramco | generic | Aramco Services Company |
| .archi | generic | STARTING DOT LIMITED |
| .army | generic | United TLD Holdco Ltd. |
| .arpa | infrastructure | Internet Architecture Board (IAB) |
| .art | generic | UK Creative Ideas Limited |
| .arte | generic | Association Relative à la Télévision Européenne G.E.I.E. |
| .as | country-code | AS Domain Registry |
| .asda | generic | Wal-Mart Stores, Inc. |
| .asia | sponsored | DotAsia Organisation Ltd. |
| .associates | generic | Baxter Hill, LLC |
| .at | country-code | nic.at GmbH |
| .athleta | generic | The Gap, Inc. |
| .attorney | generic | United TLD Holdco, Ltd |
| .au | country-code | .au Domain Administration (auDA) |
| .auction | generic | United TLD HoldCo, Ltd. |
| .audi | generic | AUDI Aktiengesellschaft |
| .audible | generic | Amazon Registry Services, Inc. |
| .audio | generic | Uniregistry, Corp. |
| .auspost | generic | Australian Postal Corporation |
| .author | generic | Amazon Registry Services, Inc. |
| .auto | generic | Cars Registry Limited |
| .autos | generic | DERAutos, LLC |
| .avianca | generic | Aerovias del Continente Americano S.A. Avianca |
| .aw | country-code | SETAR |
| .aws | generic | Amazon Registry Services, Inc. |
| .ax | country-code | Ålands landskapsregering |
| .axa | generic | AXA SA |
| .az | country-code | IntraNS |
| .azure | generic | Microsoft Corporation |
| .ba | country-code | Universtiy Telinformatic Centre (UTIC) |
| .baby | generic | Johnson & Johnson Services, Inc. |
| .baidu | generic | Baidu, Inc. |
| .banamex | generic | Citigroup Inc. |
| .bananarepublic | generic | The Gap, Inc. |
| .band | generic | United TLD Holdco, Ltd |
| .bank | generic | fTLD Registry Services, LLC |
| .bar | generic | Punto 2012 Sociedad Anonima Promotora de Inversion de Capital Variable |
| .barcelona | generic | Municipi de Barcelona |
| .barclaycard | generic | Barclays Bank PLC |
| .barclays | generic | Barclays Bank PLC |
| .barefoot | generic | Gallo Vineyards, Inc. |
| .bargains | generic | Half Hallow, LLC |
| .baseball | generic | MLB Advanced Media DH, LLC |
| .basketball | generic | Fédération Internationale de Basketball (FIBA) |
| .bauhaus | generic | Werkhaus GmbH |
| .bayern | generic | Bayern Connect GmbH |
| .bb | country-code | Government of Barbados Ministry of Economic Affairs and Development Telecommunications Unit |
| .bbc | generic | British Broadcasting Corporation |
| .bbt | generic | BB&T Corporation |
| .bbva | generic | BANCO BILBAO VIZCAYA ARGENTARIA, S.A. |
| .bcg | generic | The Boston Consulting Group, Inc. |
| .bcn | generic | Municipi de Barcelona |
| .bd | country-code | Posts and Telecommunications Division |
| .be | country-code | DNS Belgium vzw/asbl |
| .beats | generic | Beats Electronics, LLC |
| .beauty | generic | L´Oréal |
| .beer | generic | Top Level Domain Holdings Limited |
| .bentley | generic | Bentley Motors Limited |
| .berlin | generic | dotBERLIN GmbH & Co. KG |
| .best | generic | BestTLD Pty Ltd |
| .bestbuy | generic | BBY Solutions, Inc. |
| .bet | generic | Afilias plc |
| .bf | country-code | ARCE-AutoritÈ de RÈgulation des Communications Electroniques |
| .bg | country-code | Register.BG |
| .bh | country-code | Telecommunications Regulatory Authority (TRA) |
| .bharti | generic | Bharti Enterprises (Holding) Private Limited |
| .bi | country-code | Centre National de l´Informatique |
| .bible | generic | American Bible Society |
| .bid | generic | dot Bid Limited |
| .bike | generic | Grand Hollow, LLC |
| .bing | generic | Microsoft Corporation |
| .bingo | generic | Sand Cedar, LLC |
| .bio | generic | STARTING DOT LIMITED |
| .biz | generic-restricted | Neustar, Inc. |
| .bj | country-code | Benin Telecoms S.A. |
| .bl | country-code | Not assigned |
| .black | generic | Afilias plc |
| .blackfriday | generic | Uniregistry, Corp. |
| .blanco | generic | BLANCO GmbH + Co KG |
| .blockbuster | generic | Dish DBS Corporation |
| .blog | generic | Knock Knock WHOIS There, LLC |
| .bloomberg | generic | Bloomberg IP Holdings LLC |
| .blue | generic | Afilias plc |
| .bm | country-code | Registry General Department, Ministry of Home Affairs |
| .bms | generic | Bristol-Myers Squibb Company |
| .bmw | generic | Bayerische Motoren Werke Aktiengesellschaft |
| .bn | country-code | Brunei Darussalam Network Information Centre Sdn Bhd (BNNIC) |
| .bnl | generic | Banca Nazionale del Lavoro |
| .bnpparibas | generic | BNP Paribas |
| .bo | country-code | Agencia para el Desarrollo de la Información de la Sociedad en Bolivia |
| .boats | generic | DERBoats, LLC |
| .boehringer | generic | Boehringer Ingelheim International GmbH |
| .bofa | generic | NMS Services, Inc. |
| .bom | generic | Núcleo de Informação e Coordenação do Ponto BR – NIC.br |
| .bond | generic | Bond University Limited |
| .boo | generic | Charleston Road Registry Inc. |
| .book | generic | Amazon Registry Services, Inc. |
| .booking | generic | Booking.com B.V. |
| .boots | generic | THE BOOTS COMPANY PLC |
| .bosch | generic | Robert Bosch GMBH |
| .bostik | generic | Bostik SA |
| .boston | generic | Boston TLD Management, LLC |
| .bot | generic | Amazon Registry Services, Inc. |
| .boutique | generic | Over Galley, LLC |
| .box | generic | NS1 Limited |
| .bq | country-code | Not assigned |
| .br | country-code | Comite Gestor da Internet no Brasil |
| .bradesco | generic | Banco Bradesco S.A. |
PAULO RAMOS Empreendedor por paixão, gestão e marketing por formação. Atuando há muitos anos em TI e há pelo menos 15 anos em sistemas integrados de gestão e produtividade empresarial. 
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