| Description | Domain | Comments |
| Commercial Organization | .com | |
| Educational Establishment | .edu | |
| Government System | .gov | U. S. Government only |
| International Organization | .int | |
| U. S. Military | .mil | |
| Networking Organization | .net | |
| Non-Profit Organization | .org | |
| Internet Infastructure | .arpa |
The following domains are new domains:
| Businesses | .biz | www.nic.biz |
| Information | .info | www.nic.info |
| Personal Name | .name | www.nic.name |
| Museums | .museum | www.nic.museum |
| Co-Operatives | .coop | www.nic.coop |
| Aeronautical Interests | .aero | www.nic.aero |
| Professional | .pro | www.registrypro.com |
For more info, click on the link to see rules for these new domains
| Country | Domain |
| Afghanistan | .af |
| Albania | .al |
| Algeria | .dz |
| American Samoa | .as |
| Andorra | .ad |
| Angola | .ao |
| Anguilla | .ai |
| Antarctica | .aq |
| Antigua and Barbuda | .ag |
| Argentina | .ar |
| Armenia | .am |
| Aruba | .aw |
| Australia | .au |
| Austria | .at |
| Azerbaijan | .az |
| Bahamas | .bs |
| Bahrain | .bh |
| Bangladesh | .bd |
| Barbados | .bb |
| Belarus | .by |
| Belgium | .be |
| Belize | .bz |
| Benin | .bj |
| Bermuda | .bm |
| Bhutan | .bt |
| Bolivia | .bo |
| Bosnia and Herzegovina | .ba |
| Botswana | .bw |
| Bouvet Island | .bv |
| Brazil | .br |
| British Indian Ocean Territory | .io |
| Brunei Darussalam | .bn |
| Bulgaria | .bg |
| Burkina Faso | .bf |
| Brundi | .bi |
| Cambodia | .kh |
| Cameroon | .cm |
| Canada | .ca |
| Cape Verde | .cv |
| Cayman Islands | .ky |
| Central African Republic | .cf |
| Chad | .td |
| Chile | .cl |
| China | .cn |
| Christmas Island | .cx |
| Cocos (Keeling) Islands | .cc |
| Colombia | .co |
| Comoros | .km |
| Congo | .cg |
| Cook Islands | .ck |
| Costa Rica | .cr |
| Cote D'Ivoire (Ivory Coast) | .ci |
| Croatia (Hrvatska) | .hr |
| Cuba | .cu |
| Cyprus | .cy |
| Czech Republic | .cz |
| Czechoslovakia (former) | .cs |
| Denmark | .dk |
| Djibouti | .dj |
| Dominica | .dm |
| Dominican Republic | .do |
| East Timor | .tp |
| Ecuador | .ec |
| Egypt | .eg |
| El Salvador | .sv |
| Equatorial Guinea | .gq |
| Eritrea | .er |
| Estonia | .ee |
| Ethiopia | .et |
| Falkland Islands (Malvinas) | .fk |
| Faroe Islands | .fo |
| Fiji | .fj |
| Finland | .fi |
| France | .fr |
| France, Metropolitan | .fx |
| French Guiana | .gf |
| French Polynesia | .pf |
| French Southern Territories | .tf |
| Gabon | .ga |
| Gambia | .gm |
| Georgia | .ge |
| Germany | .de |
| Ghana | .gh |
| Gibralter | .gi |
| Great Britain | .gb |
| Greece | .gr |
| Greenland | .gl |
| Grenada | .gd |
| Guadeloupe | .gp |
| Guam | .gu |
| Guatemala | .gt |
| Guinea | .gn |
| Guinea-Bissau | .gw |
| Guyana | .gy |
| Haiti | .ht |
| Heard and McDonald Islands | .hm |
| Honduras | .hn |
| Hong Kong | .hk |
| Hungary | .hu |
| Iceland | .is |
| India | .in |
| Indonesia | .id |
| Iran | .ir |
| Iraq | .iq |
| Ireland | .ie |
| Israel | .il |
| Italy | .it |
| Jamaica | .jm |
| Japan | .jp |
| Jordan | .jo |
| Kazakhstan | .kz |
| Kenya | .ke |
| Kiribati | .ki |
| Korea (North) | .kp |
| Korea (South) | .kr |
| Kuwait | .kw |
| Kyrgyzstan | .kg |
| Laos | .la |
| Latvia | .lv |
| Lebanon | .lb |
| Lesotho | .ls |
| Liberia | .lr |
| Libya | .ly |
| Liechtenstein | .li |
| Lithuania | .lt |
| Luxembourg | .lu |
| Macau | .mo |
| Macedonia | .mk |
| Madagascar | .mg |
| Malawi | .mw |
| Malaysia | .my |
| Maldives | .mv |
| Mali | .ml |
| Malta | .mt |
| Marshall Islands | .mh |
| Martinique | .mq |
| Mauritania | .mr |
| Mauritius | .mu |
| Mayotte | .yt |
| Mexico | .mx |
| Micronesia | .fm |
| Moldova | .md |
| Monaco | .mc |
| Mongolia | .mn |
| Montserrat | .ms |
| Morocco | .ma |
| Mozambique | .mz |
| Myanmar | .mm |
| Namibia | .na |
| Nauru | .nr |
| Nepal | .np |
| Netherlands | .nl |
| Netherlands Antilles | .an |
| Neutral Zone | .nt |
| New Caledonia | .nc |
| New Zealand (Aotearoa) | .nz |
| Nicaragua | .ni |
| Niger | .ne |
| Nigeria | .ng |
| Niue | .nu |
| Norfolk Island | .nf |
| Northern Mariana Islands | .mp |
| Norway | .no |
| Oman | .om |
| Pakistan | .pk |
| Palau | .pw |
| Panama | .pa |
| Papua New Guinea | .pg |
| Paraguay | .py |
| Peru | .pe |
| Philippines | .ph |
| Pitcairn | .pn |
| Poland | .pl |
| Portugal | .pt |
| Puerto Rico | .pr |
| Qatar | .qa |
| Reunion | .re |
| Romania | .ro |
| Russian Federation | .ru |
| Rwanda | .rw |
| S. Georgia and S. Sandwich Isls. | .gs |
| Saint Kitts And Nevis | .kn |
| Saint Lucia | .lc |
| Saint Vincent And The Grenadines | .vc |
| Samoa | .ws |
| San Marino | .sm |
| Sao Tome And Principe | .st |
| Saudi Arabia | .sa |
| Senegal | .sn |
| Seychelles | .sc |
| Sierra Leone | .sl |
| Singapore | .sg |
| Slovak Republic | .sk |
| Slovenia | .si |
| Solomon Islands | .sb |
| Somalia | .so |
| South Africa | .za |
| Spain | .es |
| Sri Lanka | .lk |
| St. Helena | .sh |
| St. Pierre And Miquelon | .pm |
| Sudan | .sd |
| Suriname | .sr |
| Svalbard And Jan Mayen Islands | .sj |
| Swaziland | .sz |
| Sweden | .se |
| Switzerland | .ch |
| Syria | .sy |
| Taiwan | .tw |
| Tajikistan | .tj |
| Tanzania | .tz |
| Thailand | .th |
| Togo | .tg |
| Tokelau | .tk |
| Tonga | .to |
| Trinidad And Tobago | .tt |
| Tunisia | .tn |
| Turkey | .tr |
| Turkmenistan | .tm |
| Turks And Caicos Islands | .tc |
| Tuvalu | .tv |
| Uganda | .ug |
| Ukraine | .ua |
| United Arab Emirates | .ae |
| United Kingdom | .uk |
| United States | .us |
| Uruguay | .uy |
| US Minor Outlying Islands | .um |
| USSR (former) | .su |
| Uzbekistan | .uz |
| Vanuatu | .vu |
| Vatican City State (Holy See) | .va |
| Venezuela | .ve |
| Viet Nam | .vn |
| Virgin Islands (British) | .vg |
| Virgin Islands (U.S.) | .vi |
| Wallis And Futuna Islands | .wf |
| Western Sahara | .eh |
| Yemen | .ye |
| Yugoslavia | .yu |
| Zaire | .zr |
| Zambia | .zm |
| Zimbabwe | .zw |
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