Ping is a computer network tool used to test whether a particular host is reachable across an IP network. It works by sending ICMP �echo request� packets to the target host and listening for ICMP �echo response� replies. ping estimates the round-trip time, generally in milliseconds, and records any packet loss, and prints a statistical summary when finished.

The word ping is also frequently used as a verb or noun, where it can refer directly to the round-trip time, the act of running a ping program or measuring the round-trip time.

ICANN-Registrar:Domains from A-Z - Alphabetical list of all domains - Registration of all country domains

A top-level domain (TLD) is the last part of an Internet domain name; that is, the letters which follow the final dot of any domain name. For example, in the domain name www.domainregistry.de, the top-level domain is .de.

The Internet Assigned Numbers Authority (IANA) currently classifies top-level domains into three types:

* country code top-level domains (ccTLD): Used by a country or a dependent territory. It is two letters long, for example jp for Japan.

* generic top-level domain (gTLD): Used (at least in theory) by a particular class of organizations (for example, com for commercial organizations). It is three or more letters long. Most gTLDs are available for use worldwide, but for historical reasons mil (military) and gov (governmental) are restricted to use by the respective U.S. authorities. gTLDs are subclassified into sponsored top-level domains (sTLD), e.g. .aero, .coop and .museum, and unsponsored top-level domains (uTLD), e.g. .biz, .info, .name and .pro.

* infrastructure top-level domain: The top-level domain arpa is the only confirmed one.

The generic domains without sponsor are:

  • .biz
  • .com
  • .edu
  • .eu
  • .gov
  • .info
  • .int
  • .mil
  • .name
  • .net .
  • .org

    The generic domains with sponsor are:

  • .aero
  • .asia
  • .cat
  • .coop
  • .jobs
  • .mobi
  • .museum
  • .pro
  • .travel



    Attention: The list is alphabetically structured according to the names of the countries, not according to the domain names. The countries are listed with the names in the ISO list, which is general the english name of the country.
    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
    Ascension Island ac
    Australia au
    Austria at
    Azerbaijan az
    Bahrain bh
    Bangladesh bd
    Barbados bb
    Belarus by
    Belgium be
    Belize bz
    Benin bj
    Bermuda bm
    Bhutan bt
    Bolivia bo
    Bosnia and Herzegowina ba
    Botswana bw
    Bouvet Island bv
    Brazil br
    British Indian Ocean Territory io
    Brunei bn
    Bulgaria bg
    Burkina Faso bf
    Burundi bi
    Cambodia kh
    Cameroon cm
    Canada ca
    Cape Verde cv
    Central African Republic cf
    Chad td
    Channel Islands, Guernsey gg
    Channel Islands, Jersey je
    Chile cl
    China cn
    Christmas Island cx
    Cocos (Keeling) Islands cc
    Colombia co
    Comoros km
    Congo cg
    Congo, Democratic Republic of cd
    Cook Islands ck
    Costa Rica cr
    Cote d'Ivoire ci
    Croatia hr
    Cuba cu
    Cyprus cy
    Czech Republic cz
    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 fk
    Faroe Islands fo
    Fiji fj
    Finland fi
    France fr
    French Guiana gf
    French Polynesia pf
    French Southern Territories tf
    French, Metropolitan fx
    Gabon ga
    Gambia gm
    Georgia ge
    Germany de
    Ghana gh
    Gibraltar gi
    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
    Isle of Man im
    Israel il
    Italy it
    Jamaica jm
    Japan jp
    Jordan jo
    Kazakhstan kz
    Kenya ke
    Kiribati ki
    Korea, Democratic People's Republic of kp
    Korea, Republic of kr
    Kuwait kw
    Kyrgyzstan kg
    Laos la
    Latvia lv
    Lebanon lb
    Lesotho ls
    Liberia lr
    Libyan Arab Jamahiriya ly
    Liechtenstein li
    Lithuania lt
    Luxembourg lu
    Macao 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
    New Caledonia nc
    New Zealand 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
    Russia ru
    Rwanda rw
    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
    Serbia sr
    Seychelles sc
    Sierra Leone sl
    Singapore sg
    Slovakia sk
    Slovenia si
    Solomon Islands sb
    Somalia so
    South Africa za
    South Georgia and the South Sandwich Islands gs
    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
    The Bahamas bs
    The Cayman Islands ky
    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
    United States Minor Outlying Islands um
    Uruguay uy
    Uzbekistan uz
    Vanuatu vu
    Vatican City State va
    Venezuela ve
    Vietnam vn
    Virgin Islands (British) vg
    Virgin Islands (US) vi
    Wallis and Futuna Islands wf
    Western Sahara eh
    Yemen ye
    Yugoslavia yu
    Zambia zm
    Zimbabwe zw