Top Level Domains

Knowing where the site is from, or what it purports to represent, can be helpful in researching on the web. A top-level domain (TLD) it is the group of letters that follow the final dot of a domain name. A TLD is the final portion of an Internet domain name. While many are common, some are rarely seen. A researcher who doesn’t recognize a TLD should research the domain prior to clicking on the link.
Some TLDs are generic, such as COM (commercial), .ORG (organization), .NET (network), EDU (education) and .INFO (information). There are also generic-restricted top-level domain names. There are similar to the generic top-level domains, but the eligibility for the use of the name is restricted. These include: BIZ, .NAME, .PRO. Some generic TLDs are restricted to the sponsoring organizations, which parcel them out according to strict rules. These include AERO, .ASIA, .CAT, .COOP, .EDU, .GOV, .INT, .JOBS, .MIL, .MOBI, .MUSEUM, .TEL, and TRAVEL. Reserved Top-Level Domains fall into a group designed for infrastructure support, testing, and international organizations. For example, internationalized top-level domains have been reserved by IANA for testing internationalized domain names.
Country code TLDs – two letters long – are used to identify specific countries or physical locations. Some common country code TLDs are:

A
.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

B
.BA Bosnia and Herzegovina
.BB Barbados
.BD Bangladesh
.BE Belgium
.BF Burkina Faso
.BG Bulgaria
.BH Bahrain
.BI Burundi
.BJ Benin
.BL Saint Barthelemy
.BM Bermuda
.BN Brunei Darussalam
.BO Bolivia
.BR Brazil
.BS Bahamas
.BT Bhutan
.BV Bouvet Island
.BW Botswana
.BY Belarus
.BZ Belize

C
.CA Canada
.CC Cocos (Keeling) Islands
.CD Congo, The Democratic Republic of the
.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
.CU Cuba
.CV Cape Verde
.CX Christmas Island
.CY Cyprus
.CZ Czech Republic

D
.DE Germany
.DJ Djibouti
.DK Denmark
.DM Dominica
.DO Dominican Republic
.DZ Algeria

E
.EC Ecuador
.EE Estonia
.EG Egypt
.EH Western Sahara
.ER Eritrea
.ES Spain
.ET Ethiopia
.EU European Union

F
.FI Finland
.FJ Fiji
.FK FalKLand Islands (Malvinas)
.FM Micronesia, Federated States of
.FO Faroe Islands
.FR France

G
.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

H
.HK Hong Kong
.HM Heard Island and McDonald Islands
.HN Honduras
.HR Croatia
.HT Haiti
.HU Hungary

I
.ID Indonesia
.IE Ireland
.IL Israel
.IM Isle of Man
.IN India
.IO British Indian Ocean Territory
.IQ Iraq
.IR Iran, Islamic Republic of
.IS Iceland
.IT Italy

J
.JE Jersey
.JM Jamaica
.JO Jordan
.JP Japan

K
.KE Kenya
.KG Kyrgyzstan
.KH Cambodia
.KI Kiribati
.KM Comoros
.KN Saint Kitts and Nevis
.KP Korea, Democratic People’s Republic of
.KR Korea, Republic of
.KW Kuwait
.KY Cayman Islands
.KZ Kazakhstan

L
.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 Libyan Arab Jamahiriya

M
.MA Morocco
.MC Monaco
.MD Moldova
.ME Montenegro
.MF Saint Martin
.MG Madagascar
.MH Marshall Islands
.MK Macedonia, The Former Yugoslav Republic of
.ML Mali
.MM Myanmar
.MN Mongolia
.MO Macao
.MP Northern Mariana Islands
.MQ Martinique
.MR Mauritania
.MS Montserrat
.MT Malta
.MU Mauritius
.MV Maldives
.MW Malawi
.MX Mexico
.MY Malaysia
.MZ Mozambique

N
.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

O
.OM Oman

P
.PA Panama
.PE Peru
.PG Papua New Guinea
.PH Philippines
.PK Pakistan
.PL Poland
.PM Saint Pierre and Miquelon
.PN Pitcairn
.PR Puerto Rico
.PS Palestinian Territory, Occupied
.PT Portugal
.PW Palau
.PY Paraguay

Q
.QA Qatar

R
.RE Reunion
.RO Romania
.RS Serbia
.RU Russian Federation
.RW Rwanda

S
.SA Saudi Arabia
.SB Solomon Islands
.SC Seychelles
.SD Sudan
.SE Sweden
.SG Singapore
.SH Saint Helena
.SI Slovenia
.SJ Svalbard and Jan Mayen
.SK Slovakia
.SL Sierra Leone
.SM San Marino
.SN Senegal
.SO Somalia
.SR Suriname
.ST Sao Tome and Principe
.SU Soviet Union (being phased out)
.SV El Salvador
.SY Syrian Arab Republic
.SZ Swaziland

T
.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 Portuguese Timor (being phased out)
.TR Turkey
.TT Trinidad and Tobago
.TV Tuvalu
.TW Taiwan
.TZ Tanzania, United Republic of

U
.UA Ukraine
.UG Uganda
.UK United Kingdom
.UM United States Minor Outlying Islands
.US United States
.UY Uruguay
.UZ Uzbekistan

V
.VA Holy See (Vatican City State)
.VC Saint Vincent and the Grenadines
.VE Venezuela
.VG Virgin Islands, British
.VI Virgin Islands, U.S.
.VN Viet Nam
.VU Vanuatu

W
.WF Wallis and Futuna
.WS Samoa

Y
.YE Yemen
.YT Mayotte
.YU Yugoslavia (being phased out)

Z
.ZA South Africa
.ZM Zambia
.ZW Zimbabwe