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Monitoring the DNS Top-Level Domains

Details on this service.

TLD with at least one serious problem (269)

.ac (Cctld But Not In Iso-3166) .ad (Andorra) .ae (United Arab Emirates) .aero (Generic Tld)
.af (Afghanistan) .ag (Antigua And Barbuda) .ai (Anguilla) .al (Albania)
.am (Armenia) .an (Netherlands Antilles) .ao (Angola) .aq (Antarctica)
.ar (Argentina) .arpa (Generic Tld) .as (American Samoa) .asia (Generic Tld)
.at (Austria) .au (Australia) .aw (Aruba) .ax (Aland Islands)
.az (Azerbaijan) .ba (Bosnia And Herzegovina) .bb (Barbados) .bd (Bangladesh)
.be (Belgium) .bf (Burkina Faso) .bg (Bulgaria) .bh (Bahrain)
.bi (Burundi) .biz (Generic Tld) .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) .cat (Generic Tld) .cc (Cocos )
.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) .com (Generic Tld) .coop (Generic Tld)
.cr (Costa Rica) .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) .edu (Generic Tld) .ee (Estonia) .eg (Egypt)
.er (Eritrea) .es (Spain) .et (Ethiopia) .eu (Cctld But Not In Iso-3166)
.fi (Finland) .fj (Fiji) .fk (Falkland Islands ) .fm (Micronesia Federated States Of)
.fo (Faroe Islands) .fr (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) .gov (Generic Tld) .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 Island And Mcdonald Islands)
.hn (Honduras) .hr (Croatia) .ht (Haiti) .hu (Hungary)
.id (Indonesia) .ie (Ireland) .il (Israel) .im (Isle Of Man)
.in (India) .info (Generic Tld) .int (Generic Tld) .io (British Indian Ocean Territory)
.iq (Iraq) .ir (Iran Islamic Republic Of) .is (Iceland) .it (Italy)
.je (Jersey) .jm (Jamaica) .jo (Jordan) .jobs (Generic Tld)
.jp (Japan) .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)
.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) .ma (Morocco)
.mc (Monaco) .md (Moldova Republic Of) .me (Montenegro) .mg (Madagascar)
.mh (Marshall Islands) .mil (Generic Tld) .mk (Macedonia The Former Yugoslav Republic Of) .ml (Mali)
.mm (Myanmar) .mn (Mongolia) .mo (Macao) .mobi (Generic Tld)
.mp (Northern Mariana Islands) .mq (Martinique) .mr (Mauritania) .ms (Montserrat)
.mt (Malta) .mu (Mauritius) .museum (Generic Tld) .mv (Maldives)
.mw (Malawi) .mx (Mexico) .my (Malaysia) .mz (Mozambique)
.na (Namibia) .name (Generic Tld) .nc (New Caledonia) .ne (Niger)
.net (Generic Tld) .nf (Norfolk Island) .ng (Nigeria) .ni (Nicaragua)
.nl (Netherlands) .no (Norway) .np (Nepal) .nr (Nauru)
.nu (Niue) .nz (New Zealand) .om (Oman) .org (Generic Tld)
.pa (Panama) .pe (Peru) .pf (French Polynesia) .pg (Papua New Guinea)
.ph (Philippines) .pk (Pakistan) .pl (Poland) .pm (Saint Pierre And Miquelon)
.pn (Pitcairn) .pr (Puerto Rico) .pro (Generic Tld) .ps (Palestinian Territory Occupied)
.pt (Portugal) .pw (Palau) .py (Paraguay) .qa (Qatar)
.re (Reunion) .ro (Romania) .rs (Serbia) .ru (Russian Federation)
.rw (Rwanda) .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 (Cctld But Not In Iso-3166) .sv (El Salvador) .sy (Syrian Arab Republic)
.sz (Swaziland) .tc (Turks And Caicos Islands) .td (Chad) .tel (Generic Tld)
.tf (French Southern Territories) .tg (Togo) .th (Thailand) .tj (Tajikistan)
.tk (Tokelau) .tl (Timor-leste) .tm (Turkmenistan) .tn (Tunisia)
.to (Tonga) .tp (Cctld But Not In Iso-3166) .tr (Turkey) .travel (Generic Tld)
.tt (Trinidad And Tobago) .tv (Tuvalu) .tw (Taiwan Province Of China) .tz (Tanzania United Republic Of)
.ua (Ukraine) .ug (Uganda) .uk (Cctld But Not In Iso-3166) .us (United States)
.uy (Uruguay) .uz (Uzbekistan) .va (Holy See ) .vc (Saint Vincent And The Grenadines)
.ve (Venezuela) .vg (Virgin Islands British) .vi (Virgin Islands U.s.) .vn (Viet Nam)
.vu (Vanuatu) .wf (Wallis And Futuna) .ws (Samoa) .ye (Yemen)
.yt (Mayotte) .yu (Cctld But Not In Iso-3166) .za (South Africa) .zm (Zambia)
.zw (Zimbabwe)

TLD without serious problems (0)

It is possible that they failed a test recently but it may be a transitory situation.

Generic NIC sheet: Why and how monitoring your domain.

Monitoring the nameservers

Details

We use ZoneCheck to test the Top-level domains. See our FAQ if Zonecheck's error messages are not clear enough.

The policy of ZoneCheck is configurable. AFNIC, for instance, uses one policy to allow delegations in .fr. This monitoring tool, which is build on top of ZoneCheck, uses another one (you can also view it as raw XML. If you install ZoneCheck locally, you can design yet another one.

Policies lists the tests to make and wether a failure is regarded as "fatal" or not (some failures are simply warnings). Any input from the community regarding the policy used here is welcome. But keep in mind that there is no consensus in the community regarding all the tests, except the most basic ones.

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HOWTO setup a domain registry

Anycast, une nouvelle technique de gestion d'un parc de serveur de noms

NDI (Noms de Domaines Internationaux)

Changing the IP address of the TLD name server

Setting up a DNS registry with XML and XSL

Checking your domaine: why and how

The choices for a nameserver

The zone file generator

Modélisation de données

The whois service

For every question about generic NIC, please ask info@generic-nic.net.