Doména je jedinečný název pro jednotlivé adresy pracovních stanic zapojených v síti. Byl zaveden technologií DNS a je to v podstatě překlad identifikačního čísla IP (jako je třeba 187.252.16.1) na jeho textovou hodnotu
(např.: www.neco.cz). Domény se rozdělují z hlediska úrovně (level) na:
Tabulka národních domén ccTLD (Country Code Top Level Domain)
| Národní doména |
Přidělena státu |
| AC |
ASCENSION ISLAND |
| AD |
ANDORRA |
| AE |
UNITED ARAB EMIRATES |
| AF |
AFGHANISTAN |
| AG |
ANTIGUA AND BARBUDA |
| AI |
ANGUILLA |
| AL |
ALBANIA |
| AM |
ARMENIA |
| AN |
NETHERLANDS ANTILLES |
| AO |
ANGOLA |
| AQ |
ANTARCTICA |
| AR |
ARGENTINA |
| AS |
AMERICAN SAMOA |
| AT |
AUSTRIA |
| AU |
AUSTRALIA |
| AW |
ARUBA |
| AX |
ALAND ISLANDS |
| AZ |
AZERBAIJAN |
| BA |
BOSNIA AND HERZEGOWINA |
| BB |
BARBADOS |
| BD |
BANGLADESH |
| BE |
BELGIUM |
| BF |
BURKINA FASO |
| BG |
BULGARIA |
| BH |
BAHRAIN |
| BI |
BURUNDI |
| BJ |
BENIN |
| BM |
BERMUDA |
| BN |
BRUNEI DARUSSALAM |
| BO |
BOLIVIA |
| BR |
BRAZIL |
| BS |
BAHAMAS |
| BT |
BHUTAN |
| BV |
BOUVET ISLAND |
| BW |
BOTSWANA |
| BY |
BELARUS |
| BZ |
BELIZE |
| CA |
CANADA |
| CC |
COCOS (KEELING) ISLANDS |
| CD |
THE DEMOCRATIC REP. OF THE CONGO |
| CF |
CENTRAL AFRICAN REPUBLIC |
| CG |
CONGO |
| CH |
SWITZERLAND |
| CI |
COTE D'IVOIRE |
| CK |
COOK ISLANDS |
| CL |
CHILE |
| CM |
CAMEROON |
| CN |
CHINA |
| CO |
COLOMBIA |
| CR |
COSTA RICA |
| CS |
SERBIA AND MONTENEGRO |
| CU |
CUBA |
| CV |
CAPE VERDE |
| CX |
CHRISTMAS ISLAND |
| CY |
CYPRUS |
| CZ |
CZECH REPUBLIC |
| DE |
GERMANY |
| DJ |
DJIBOUTI |
| DK |
DENMARK |
| DM |
DOMINICA |
| DO |
DOMINICAN REPUBLIC |
| DZ |
ALGERIA |
| EC |
ECUADOR |
| EE |
ESTONIA |
| EG |
EGYPT |
| EH |
WESTERN SAHARA |
| ER |
ERITREA |
| ES |
SPAIN |
| ET |
ETHIOPIA |
| FI |
FINLAND |
| FJ |
FIJI |
| FK |
FALKLAND ISLANDS (MALVINAS) |
| FM |
FEDERATED STATES OF MICRONESIA |
| FO |
FAROE ISLANDS |
| FR |
FRANCE |
| FX |
METROPOLITAN FRANCE |
| GA |
GABON |
| GB |
UNITED KINGDOM |
| GD |
GRENADA |
| GE |
GEORGIA |
| GF |
FRENCH GUIANA |
| GG |
GUERNSEY |
| GH |
GHANA |
| GI |
GIBRALTAR |
| GL |
GREENLAND |
| GM |
GAMBIA |
| GN |
GUINEA |
| GP |
GUADELOUPE |
| GQ |
EQUATORIAL GUINEA |
| GR |
GREECE |
| GS |
SOUTH GEORGIA AND THE SOUTH SANDWICH ISLANDS |
| GT |
GUATEMALA |
| GU |
GUAM |
| GW |
GUINEA-BISSAU |
| GY |
GUYANA |
| HK |
HONG KONG |
| HM |
HEARD AND MC DONALD ISLANDS |
| HN |
HONDURAS |
| HR |
CROATIA/HRVATSKA |
| HT |
HAITI |
| HU |
HUNGARY |
| ID |
INDONESIA |
| IE |
IRELAND |
| IL |
ISRAEL |
| IM |
ISLE OF MAN |
| IN |
INDIA |
| IO |
BRITISH INDIAN OCEAN TERRITORY |
| IQ |
IRAQ |
| IR |
IRAN |
| IS |
ICELAND |
| IT |
ITALY |
| JE |
JERSEY |
| JM |
JAMAICA |
| JO |
JORDAN |
| JP |
JAPAN |
| KE |
KENYA |
| KG |
KYRGYZSTAN |
| KH |
CAMBODIA |
| KI |
KIRIBATI |
| KM |
COMOROS |
| KN |
SAINT KITTS AND NEVIS |
| KP |
DEM. PEOPLE'S REPUBLIC OF KOREA |
| KR |
REPUBLIC OF KOREA |
| KW |
KUWAIT |
| KY |
CAYMAN ISLANDS |
| KZ |
KAZAKHSTAN |
| LA |
LAO PEOPLE'S DEMOCRATIC REPUBLIC |
| LB |
LEBANON |
| LC |
SAINT LUCIA |
| LI |
LIECHTENSTEIN |
| LK |
SRI LANKA |
| LR |
LIBERIA |
| LS |
LESOTHO |
| LT |
LITHUANIA |
| LU |
LUXEMBOURG |
| LV |
LATVIA |
| LY |
ARAB JAMAHIRIYA LIBYAN |
| MA |
MOROCCO |
| MC |
MONACO |
| MD |
MOLDOVA |
| MG |
MADAGASCAR |
| MH |
MARSHALL ISLANDS |
| MK |
MACEDONIA |
| ML |
MALI |
| MM |
MYANMAR |
| MN |
MONGOLIA |
| MO |
MACAU |
| MP |
NORTHERN MARIANA ISLANDS |
| MQ |
MARTINIQUE |
| MR |
MAURITANIA |
| MS |
MONTSERRAT |
| MT |
MALTA |
| MU |
MAURITIUS |
| MV |
MALDIVES |
| MW |
MALAWI |
| MX |
MEXICO |
| MY |
MALAYSIA |
| MZ |
MOZAMBIQUE |
| NA |
NAMIBIA |
| NC |
NEW CALEDONIA |
| NE |
NIGER |
| NF |
NORFOLK ISLAND |
| NG |
NIGERIA |
| NI |
NICARAGUA |
| NL |
NETHERLANDS |
| NO |
NORWAY |
| NP |
NEPAL |
| NR |
NAURU |
| NU |
NIUE |
| NZ |
NEW ZEALAND |
| OM |
OMAN |
| PA |
PANAMA |
| PE |
PERU |
| PF |
FRENCH POLYNESIA |
| PG |
PAPUA NEW GUINEA |
| PH |
PHILIPPINES |
| PK |
PAKISTAN |
| PL |
POLAND |
| PM |
SAINT PIERRE AND MIQUELON |
| PN |
PITCAIRN ISLAND |
| PR |
PUERTO RICO |
| PS |
PALESTINIAN TERRITORY |
| PT |
PORTUGAL |
| PW |
PALAU |
| PY |
PARAGUAY |
| QA |
QATAR |
| RE |
REUNION ISLAND |
| RO |
ROMANIA |
| RU |
RUSSIAN FEDERATION |
| RW |
RWANDA |
| SA |
SAUDI ARABIA |
| SB |
SOLOMON ISLANDS |
| SC |
SEYCHELLES |
| SD |
SUDAN |
| SE |
SWEDEN |
| SG |
SINGAPORE |
| SH |
SAINT HELENA |
| SI |
SLOVAK REPUBLIC |
| SJ |
SVALBARD AND JAN MAYEN ISLANDS |
| SK |
SLOVAKIA |
| SL |
SIERRA LEONE |
| SM |
SAN MARINO |
| SN |
SENEGAL |
| SO |
SOMALIA |
| SR |
SURINAME |
| ST |
SAO TOME AND PRINCIPE |
| SV |
EL SALVADOR |
| SY |
SYRIAN ARAB REPUBLIC |
| SZ |
SWAZILAND |
| TC |
TURKS AND CAICOS ISLANDS |
| TD |
CHAD |
| TF |
FRENCH SOUTHERN TERRITORIES |
| TG |
TOGO |
| TH |
THAILAND |
| TJ |
TAJIKISTAN |
| TK |
TOKELAU |
| TL |
TIMOR-LESTE |
| TM |
TURKMENISTAN |
| TN |
TUNISIA |
| TO |
TONGA |
| TP |
EAST TIMOR |
| TR |
TURKEY |
| TT |
TRINIDAD AND TOBAGO |
| TV |
TUVALU |
| TW |
TAIWAN |
| TZ |
TANZANIA |
| UA |
UKRAINE |
| UG |
UGANDA |
| UK |
UNITED KINGDOM |
| UM |
UNITED STATES MINOR OUTLYING ISLANDS |
| US |
UNITED STATES |
| UY |
URUGUAY |
| UZ |
UZBEKISTAN |
| VA |
HOLY SEE (VATICAN CITY STATE) |
| VC |
SAINT VINCENT AND THE GRENADINES |
| VE |
VENEZUELA |
| VG |
VIRGIN ISLANDS (BRITISH) |
| VI |
VIRGIN ISLANDS (U.S.) |
| VN |
VIETNAM |
| VU |
VANUATU |
| WF |
WALLIS AND FUTUNA ISLANDS |
| WS |
WESTERN SAMOA |
| YE |
YEMEN |
| YT |
MAYOTTE |
| YU |
YUGOSLAVIA |
| ZA |
SOUTH AFRICA |
| ZM |
ZAMBIA |
| ZW |
ZIMBABWE |
Tabulka generických domén gTLD (Generic Top Level Domain)
| Název domény |
Určení domény |
| AERO |
subjekty podnikající v letecké dopravě |
| BIZ |
pro společnosti |
| COM |
komerční organizace |
| COOP |
subjekty družstevního typu |
| EDU |
vzdělávací instituce USA |
| GOV |
státní orgány a instituce USA |
| INFO |
informace o službách atd. |
| INT |
mezinárodní organizace |
| MIL |
armáda USA |
| MUSEUM |
muzea a vystavovatelé |
| NAME |
fyzické osoby, určena pro osobní stránky |
| NET |
síťové prostředky, zařízení providerů |
| ORG |
nekomerční, nestátní organizace |
| PRO |
profesionálové s konkrétní licencí - právníci, doktoři |
