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Note: this page has been obsoleted by the information available at publicsuffix.org.

This is a list of all TLDs (top-level-domains) with their policies for second and third level domains. This is to help with bug 319643, bug 252342, bug 8743, bug 66383, bug 264632, ... It will take some time to check every domain, since there isn't a good list available.

Type Comment Examples
A Only second level domains *.com, *.nl
B Only third level domains *.co.uk
C Mixed second and third level domains *.be, *.ac.be
D Other

Contents

TLDs in the root DNS

http://data.iana.org/TLD/tlds-alpha-by-domain.txt
# Version 2007020901, Last Updated Sat Feb 10 09:07:01 2007 UTC

The data in this table has been gathered from the relevant registry and Wikipedia. When the data here is complete, registries will be asked to confirm it and amend it if necessary. TLDs without a registry link are ones where second and third-level domains have not been finalised.

TLD Type List of domains Comments Registry
AC C com.ac edu.ac gov.ac net.ac mil.ac org.ac
AD C ad nom.ad [1]
AE C ae net.ae gov.ae org.ae mil.ae sch.ae ac.ae pro.ae name.ae [2]
AERO A aero [3]
AF C af gov.af edu.af net.af com.af [4]
AG C ag com.ag org.ag net.ag co.ag nom.ag [5]
AI C ai off.ai com.ai net.ai org.ai [6]
AL C gov.al edu.al org.al com.al net.al (uniti.al tirana.al soros.al upt.al inima.al)
AM A am [7]
AN C an com.an net.an org.an edu.an [8] (in Dutch)
AO B co.ao ed.ao gv.ao it.ao og.ao pb.ao [9]
AQ This TLD is unused.
AR B com.ar gov.ar int.ar mil.ar net.ar org.ar [10] (in Spanish)
ARPA B e164.arpa in-addr.arpa iris.arpa ip6.arpa uri.arpa urn.arpa Domains cannot be registered under the .arpa TLD. n/a
AS A as [11]
AT C at gv.at ac.at co.at or.at priv.at [12]
AU D asn.au com.au net.au id.au org.au csiro.au oz.au info.au conf.au act.au nsw.au nt.au qld.au sa.au tas.au vic.au wa.au
For gov.au and edu.au: act nsw nt qld sa tas vic wa
Mostly B, but gov.au and edu.au are split geographically. Tertiary institutions are typically exempt from requiring state-based distinctions; these need to be set as exemptions. [13]
AW C aw com.aw [14]
AX A ax [15] (in Swedish)
AZ C az com.az net.az int.az gov.az biz.az org.az edu.az mil.az pp.az name.az info.az [16]
BA C ???
BB C com.bb edu.bb gov.bb net.bb org.bb
BD B com.bd edu.bd net.bd gov.bd org.bd mil.bd
BE C ac.be There are commercial 3rd level domains (to.be, com.be, co.be, xa.be, ap.be) but not official
fgov.be is the government, but I'm not sure that counts
BF C gov.bf
BG A
BH C ???
BI C ???
BIZ A
BJ C ???
BM C possibly com.bm edu.bm org.bm gov.bm net.bm
BN B com.bn edu.bn org.bn net.bn
BO C bo com.bo org.bo net.bo gov.bo gob.bo edu.bo tv.bo mil.bo int.bo
BR B agr.br am.br art.br edu.br com.br coop.br esp.br far.br fm.br g12.br gov.br imb.br ind.br inf.br mil.br net.br org.br psi.br rec.br srv.br tmp.br tur.br tv.br etc.br adm.br adv.br arq.br ato.br bio.br bmd.br cim.br cng.br cnt.br ecn.br eng.br eti.br fnd.br fot.br fst.br ggf.br jor.br lel.br mat.br med.br mus.br not.br ntr.br odo.br ppg.br pro.br psc.br qsl.br slg.br trd.br vet.br zlg.br dpn.br nom.br
BS C bs com.bs net.bs org.bs (others ?)
BT C bt com.bt edu.bt gov.bt net.bt org.bt
BV This TLD is unused.
BW C bw co.bw org.bw (others ?)
BY C gov.by mil.by
BZ C ???
CA C .ca .ab.ca .bc.ca .mb.ca .nb.ca .nf.ca .nl.ca .ns.ca .nt.ca .nu.ca .on.ca .pe.ca .qc.ca .sk.ca .yk.ca
CAT A
CC C .cc .co.cc .co.cc sells as a tld [17], [18]
CD C .cd .com.cd .net.cd .org.cd (others ?)
CF A
CG
CH C? .ch .com.ch .net.ch .org.ch .gov.ch
CI
CK C .co.ck and others
CL A
CM
CN C .cn .ac.cn .com.cn .edu.cn .gov.cn .net.cn .org.cn .ah.cn .bj.cn .cq.cn .fj.cn .gd.cn .gs.cn .gz.cn .gx.cn .ha.cn .hb.cn .he.cn .hi.cn .hl.cn .hn.cn .jl.cn .js.cn .jx.cn .ln.cn .nm.cn .nx.cn .qh.cn .sc.cn .sd.cn .sh.cn .sn.cn .sx.cn .tj.cn .xj.cn .xz.cn .yn.cn .zj.cn
CO B .com.co .edu.co .org.co .gov.co .mil.co .net.co .nom.co
COM A
COOP C
CR B ac.cr co.cr ed.cr fi.cr go.cr or.cr sa.cr
CU C .cu .com.cu .edu.cu .org.cu .net.cu .gov.cu .inf.cu
CV
CX C .cx .gov.cx
CY B com.cy biz.cy info.cy ltd.cy pro.cy net.cy org.cy name.cy tm.cy ac.cy ekloges.cy press.cy parliament.cy
CZ A
DE A? More info about .de domains
DJ A?
DK A
DM C .dm com.dm net.dm org.dm edu.dm gov.dm
DO B .edu.do .gov.do .gob.do .com.do .org.do .sld.do .web.do .net.do .mil.do .art.do
DZ C .dz .com.dz .org.dz .net.dz .gov.dz .edu.dz .asso.dz .pol.dz .art.dz
EC C .ec .com.ec .info.ec .net.ec .fin.ec .med.ec .pro.ec .org.ec .edu.ec .gov.ec .mil.ec (others ?)
EDU A
EE C .ee .com.ee .org.ee .fie.ee .pri.ee (others ?)
EG B .eun.eg .edu.eg .sci.eg .gov.eg .com.eg .org.eg .net.eg .mil.eg
ER
ES C .es .com.es .nom.es .org.es .gob.es .edu.es (others ?)
ET B .com.et .gov.et .org.et .edu.et .net.et .biz.et .name.et .info.et
EU A
FI C .fi .aland.fi
FJ B biz.fj com.fj info.fj name.fj net.fj org.fj pro.fj ac.fj gov.fj mil.fj school.fj
FK B .co.fk .org.fk .gov.fk .ac.fk .nom.fk .net.fk
FM A?
FO A?
FR C .fr .tm.fr .asso.fr .nom.fr .prd.fr .presse.fr .com.fr .gouv.fr
GA ?
GB This TLD is unused.
GD ?
GE C .ge .com.ge .edu.ge .gov.ge .org.ge .mil.ge .net.ge .pvt.ge
GF ?
GG C .gg .co.gg .net.gg .org.gg (others ?)
GH B com.gh edu.gh gov.gh org.gh mil.gh
GI C .gi .com.gi .ltd.gi .gov.gi .mod.gi .edu.gi .org.gi
GL A
GM A
GN B .com.gn .ac.gn .gov.gn .org.gn .net.gn
GOV A
GP C .gp .com.gp, .net.gp, .edu.gp, .asso.gp, or .org.gp
GQ ?
GR C .gr .com.gr .edu.gr .net.gr .org.gr .gov.gr
GS ?
GT ?
GU B ???
GW ?
GY ?
HK C .hk .com.hk .edu.hk .gov.hk .idv.hk .net.hk .org.hk
HM A?
HN C .hn .com.hn .edu.hn .org.hn .net.hn .mil.hn .gob.hn
HR C .hr .iz.hr .from.hr .name.hr .com.hr
HT C .ht .com.ht .net.ht .firm.ht .shop.ht .info.ht .pro.ht .adult.ht .org.ht .art.ht .pol.ht .rel.ht .asso.ht .perso.ht .coop.ht .med.ht .edu.ht .gouv.ht
HU C .hu co.hu info.hu org.hu priv.hu sport.hu tm.hu 2000.hu agrar.hu bolt.hu casino.hu city.hu erotica.hu erotika.hu film.hu forum.hu games.hu hotel.hu ingatlan.hu jogasz.hu konyvelo.hu lakas.hu media.hu news.hu reklam.hu sex.hu shop.hu suli.hu szex.hu tozsde.hu utazas.hu video.hu
ID B ac.id co.id or.id go.id
IE C .ie .gov.ie
IL B ac.il co.il org.il net.il k12.il gov.il muni.il idf.il
IM D co.im ltd.co.im plc.co.im net.im gov.im org.im nic.im ac.im 4th level domains are possible within co.im
IN C .in .co.in .firm.in .net.in .org.in .gen.in .ind.in .nic.in .ac.in .edu.in .res.in .gov.in .mil.in many governement domains in nic.in instead of gov.in
INFO A
INT C? should be A, but there exists a europa.eu.int too
IO C ???
IQ This TLD is unused.
IR C .ir .ac.ir .co.ir .gov.ir .net.ir .org.ir .sch.ir
IS C ??? ac.is, org.is, etc ... exists, but didn't found a list
IT D .it .gov.it others ... most are 2nd level, but 3rd and 4th level geographical names exists like pisa.it and pontedera.pisa.it
JE C .je .co.je .net.je .org.je
JM B .edu.jm .gov.jm .com.jm .net.jm org.jm
JO C .jo .com.jo .org.jo .net.jo .edu.jo .gov.jo .mil.jo
JOBS A?
JP D .jp ac.jp ad.jp co.jp ed.jp go.jp gr.jp lg.jp ne.jp or.jp
Geo-names: hokkaido.jp aomori.jp iwate.jp miyagi.jp akita.jp yamagata.jp fukushima.jp ibaraki.jp tochigi.jp gunma.jp saitama.jp chiba.jp tokyo.jp kanagawa.jp niigata.jp toyama.jp ishikawa.jp fukui.jp yamanashi.jp nagano.jp gifu.jp shizuoka.jp aichi.jp mie.jp shiga.jp kyoto.jp osaka.jp hyogo.jp nara.jp wakayama.jp tottori.jp shimane.jp okayama.jp hiroshima.jp yamaguchi.jp tokushima.jp kagawa.jp ehime.jp kochi.jp fukuoka.jp saga.jp nagasaki.jp kumamoto.jp oita.jp miyazaki.jp kagoshima.jp okinawa.jp sapporo.jp sendai.jp yokohama.jp kawasaki.jp nagoya.jp kobe.jp kitakyushu.jp
complicated rules for geo-names: bug 252342
KE B ???
KG C ???
KH B per.kh com.kh edu.kh gov.kh mil.kh net.kh org.kh
KI B? ???
KM A?
KN ?
KR C .kr .co.kr .or.kr others???
KW B .com.kw .edu.kw .gov.kw .net.kw .org.kw .mil.kw
KY C .ky .edu.ky .gov.ky .com.ky .org.ky .net.ky
KZ B .org.kz .edu.kz .net.kz .gov.kz .mil.kz .com.kz
LA A
LB B net.lb org.lb gov.lb edu.lb com.lb
LC B com.lc org.lc edu.lc gov.lc
LI C? .li .com.li .net.li .org.li .gov.li (others?)
LK C .lk .gov.lk .sch.lk .net.lk .int.lk .com.lk .org.lk .edu.lk .ngo.lk .soc.lk .web.lk .ltd.lk .assn.lk .grp.lk .hotel.lk
LR B .com.lr .edu.lr .gov.lr .org.lr .net.lr
LS B .org.ls .co.ls
LT C .lt .gov.lt .mil.lt others?
LU C .lu .gov.lu .mil.lu .org.lu .net.lu others?
LV C .lv .com.lv .edu.lv .gov.lv .org.lv .mil.lv .id.lv .net.lv .asn.lv .conf.lv
LY C .ly .com.ly .net.ly .gov.ly .plc.ly .edu.ly .sch.ly .med.ly .org.ly .id.ly
MA C .ma .co.ma .net.ma .gov.ma .org.ma others?
MC C .mc .tm.mc .asso.mc
MD A?
MG C .mg .org.mg .nom.mg .gov.mg .prd.mg .tm.mg .com.mg .edu.mg .mil.mg others!!! I didn't find a full list, but there could be many as suggested on their NIC
MH ? .net.mh
MIL C? army.mil navy.mil ...
MK C .mk .com.mk .org.mk others?
ML B ???
MM B?
MN A
MO C .mo .com.mo .net.mo .org.mo .edu.mo .gov.mo
MOBI C weather.mobi music.mobi ...
MP A
MQ A
MR A?
MS ?
MT C .mt .org.mt .com.mt .gov.mt .edu.mt .net.mt
MU C .mu .com.mu .co.mu others?
MUSEUM C
MV B .aero.mv .biz.mv .com.mv .coop.mv .edu.mv .gov.mv .info.mv .int.mv .mil.mv .museum.mv .name.mv .net.mv .org.mv .pro.mv
MW B ac.mw co.mw com.mw coop.mw edu.mw gov.mw int.mw museum.mw net.mw org.mw
MX B .com.mx .net.mx .org.mx .edu.mx .gob.mx
MY B .com.my .net.my .org.my .gov.my .edu.my .mil.my .name.my
MZ ?
NA ?
NAME C Used to be B, but now has second level too. Complicated to work out which second level domains are allowed to set cookies and which are not.
NC A?
NE ?
NET A
NF ?
NG B .edu.ng .com.ng .gov.ng .org.ng .net.ng
NI B? .gob.ni .com.ni .edu.ni .org.ni .nom.ni .net.ni
NL C .nl .000.nl/.999.nl personal domainames are 3th level behind a 3 digit numeric code like johnsmith.752.nl
NO C .no mil.no stat.no kommune.no herad.no priv.no vgs.no fhs.no museum.no fylkesbibl.no folkebibl.no idrett.no [geo].no gs.[county].no geographic names listed here (includes normal and IDN versions)
NP B com.np org.np edu.np net.np gov.np mil.np
NR C .nr .gov.nr .edu.nr .biz.nr .info.nr .nr org.nr .com.nr .net.nr co.nr is not a official TLD, but acts like one
NU A
NZ B .ac.nz .co.nz .cri.nz .gen.nz .geek.nz .govt.nz .iwi.nz .maori.nz .mil.nz .net.nz .org.nz .school.nz
OM B com.om co.om edu.om ac.com sch.om gov.om net.om org.om mil.om museum.om biz.om pro.om med.om
ORG A
PA B com.pa ac.pa sld.pa gob.pa edu.pa org.pa net.pa abo.pa ing.pa med.pa nom.pa
PE B com.pe org.pe net.pe edu.pe mil.pe gob.pe nom.pe
PF C .pf .com.pf .org.pf .edu.pf
PG B .com.pg .net.pg
PH C .ph .com.ph .gov.ph others?
PK C .pk .com.pk .net.pk .edu.pk .org.pk .fam.pk .biz.pk .web.pk .gov.pk .gob.pk .gok.pk .gon.pk .gop.pk .gos.pk
PL C .pl .com.pl .biz.pl .net.pl .art.pl .edu.pl .org.pl .ngo.pl .gov.pl .info.pl .mil.pl
Geographic: .waw.pl .warszawa.pl .wroc.pl .wroclaw.pl .krakow.pl .poznan.pl .lodz.pl .gda.pl .gdansk.pl .slupsk.pl .szczecin.pl .lublin.pl .bialystok.pl .olsztyn.pl.torun.pl and more...
here are more domains visible
PM This TLD is unused.
PN ?
PR C .pr .biz.pr .com.pr .edu.pr .gov.pr .info.pr .isla.pr .name.pr .net.pr .org.pr .pro.pr
PRO C law.pro med.pro cpa.pro
PS C .ps .edu.ps .gov.ps .sec.ps .plo.ps .com.ps .org.ps .net.ps
PT C .pt .com.pt .edu.pt .gov.pt .int.pt .net.pt .nome.pt .org.pt .publ.pt
PW B?
PY B .net.py .org.py .gov.py .edu.py .com.py
QA B ???
RE ?
RO C .ro .com.ro .org.ro .tm.ro .nt.ro .nom.ro .info.ro .rec.ro .arts.ro .firm.ro .store.ro .www.ro here are more details about Romanian domain names
RU C .ru .com.ru .net.ru .org.ru .pp.ru .msk.ru .int.ru .ac.ru others!!!
RW C .rw .gov.rw .net.rw .edu.rw .ac.rw .com.rw .co.rw .int.rw .mil.rw .gouv.rw
SA B .com.sa .edu.sa .sch.sa .med.sa .gov.sa .net.sa .org.sa .pub.sa
SB B .com.sb .gov.sb .net.sb .edu.sb others?
SC C .sc .com.sc .gov.sc .net.sc .org.sc .edu.sc
SD C .sd .com.sd .net.sd .org.sd .edu.sd .med.sd .tv.sd .gov.sd .info.sd
SE C .se .org.se .pp.se .tm.se .brand.se .parti.se .press.se .komforb.se .kommunalforbund.se .komvux.se .lanarb.se .lanbib.se .naturbruksgymn.se .sshn.se .fhv.se .fhsk.se .fh.se .mil.se
Geographical: .ab.se .c.se .d.se .e.se .f.se .g.se .h.se .i.se .k.se .m.se .n.se .o.se .s.se .t.se .u.se .w.se .x.se .y.se .z.se .ac.se .bd.se
SG C .sg .com.sg .net.sg .org.sg .gov.sg .edu.sg .per.sg .idn.sg
SH C ???
SI A?
SJ This TLD is unused.
SK ?
SL ?
SM A
SN A
SO This TLD is unused.
SR A? .rs.sr is Republika Srpska
ST A?
SU A The future of this TLD is unclear.
SV B .edu.sv .com.sv .gob.sv .org.sv .red.sv
SY B? .gov.sy .com.sy .net.sy others?
SZ A?
TC ?
TD A?
TF ?
TG C?
TH B .ac.th .co.th .in.th .go.th .mi.th .or.th .net.th
TJ C .tj .ac.tj .biz.tj .com.tj .co.tj .edu.tj .int.tj .name.tj .net.tj .org.tj .web.tj .gov.tj .go.tj .mil.tj
TK A
TL This is the new TLD for Timor-Leste; see .tp for info
TM C?
TN B .com.tn .intl.tn .gov.tn .org.tn .ind.tn .nat.tn .tourism.tn .info.tn .ens.tn .fin.tn .net.tn
TO C .to .gov.to others?
TP C .tp .gov.tp others? Should become unused, replaced with .tl
TR D .com.tr .info.tr .biz.tr .net.tr .org.tr .web.tr .gen.tr .av.tr .dr.tr .bbs.tr .name.tr .tel.tr .gov.tr .bel.tr .pol.tr .mil.tr .k12.tr .edu.tr .bel.tr is used for geographical names
TRAVEL A third levels seem to be explicitly forbidden
TT C .tt .co.tt .com.tt .org.tt .net.tt .biz.tt .info.tt .pro.tt .name.tt .edu.tt .gov.tt us.tt is not an official 2nd-level domain, but acts as one
TV C .tv .gov.tv others?
TW C .tw .edu.tw .gov.tw .mil.tw .com.tw .net.tw .org.tw .idv.tw .game.tw .ebiz.tw .club.tw 網路.tw 組織.tw 商業.tw there are 3 IDN domains in this list !
TZ B .co.tz .ac.tz .go.tz .or.tz .ne.tz
UA C .ua .com.ua .gov.ua .net.ua .edu.ua .org.ua
Geographical names: .cherkassy.ua .ck.ua .chernigov.ua .cn.ua .chernovtsy.ua .cv.ua .crimea.ua .dnepropetrovsk.ua .dp.ua .donetsk.ua .dn.ua .ivano-frankivsk.ua .if.ua .kharkov.ua .kh.ua .kherson.ua .ks.ua .khmelnitskiy.ua .km.ua .kiev.ua .kv.ua .kirovograd.ua .kr.ua .lugansk.ua .lg.ua .lutsk.ua .lviv.ua .nikolaev.ua .mk.ua .odessa.ua .od.ua .poltava.ua .pl.ua .rovno.ua .rv.ua .sebastopol.ua .sumy.ua .ternopil.ua .te.ua .uzhgorod.ua .vinnica.ua .vn.ua .zaporizhzhe.ua .zp.ua .zhitomir.ua .zt.ua
UG C .ug .co.ug .ac.ug .sc.ug .go.ug .ne.ug .or.ug
UK B

.ac.uk .co.uk .gov.uk .ltd.uk .me.uk .mil.uk .mod.uk .net.uk .nic.uk .nhs.uk .org.uk .plc.uk .police.uk .sch.uk||exceptions: .bl.uk .british-library.uk .icnet.uk .jet.uk .nel.uk .nls.uk .national-library-scotland.uk .parliament.uk
.sch.uk uses 4th level domains

UM C? unused
US C .us .ak.us .al.us .ar.us .az.us .ca.us .co.us .ct.us .dc.us .de.us .dni.us .fed.us .fl.us .ga.us .hi.us .ia.us .id.us .il.us .in.us .isa.us .kids.us .ks.us .ky.us .la.us .ma.us .md.us .me.us .mi.us .mn.us .mo.us .ms.us .mt.us .nc.us .nd.us .ne.us .nh.us .nj.us .nm.us .nsn.us .nv.us .ny.us .oh.us .ok.us .or.us .pa.us .ri.us .sc.us .sd.us .tn.us .tx.us .ut.us .vt.us .va.us .wa.us .wi.us .wv.us .wy.us there are still some 4th level domain within the geographical ones (localities, k12, pvt.k12, cc, tec, lib, state, gen)
UY B .edu.uy .gub.uy .org.uy .com.uy .net.uy .mil.uy
UZ A?
VA B vatican.va
VC A?
VE B .com.ve .net.ve .org.ve .info.ve .co.ve .web.ve
VG ?
VI C .vi .com.vi .org.vi .edu.vi .gov.vi
VN C .vn .com.vn .net.vn .org.vn .edu.vn .gov.vn .int.vn .ac.vn .biz.vn .info.vn .name.vn .pro.vn .health.vn
VU A?
WF This TLD is unused.
WS A
YE B? .com.ye .net.ye others?
YT This TLD is unused.
YU B .ac.yu .co.yu .org.yu .edu.yu The future of this TLD is unclear.
ZA B .ac.za .city.za .co.za .edu.za .gov.za .law.za .mil.za .nom.za .org.za .school.za .alt.za .net.za .ngo.za .tm.za .web.za list of sld's
ZM B .co.zm .org.zm .gov.zm .sch.zm .ac.zm
ZW B .co.zw .org.zw .gov.zw .ac.zw

TLDs not in the root DNS

These are top-level domains that are not currently in the root DNS, and therefore have no domain names registered under them. However, some of them are currently in the ICANN approval process and may soon be added to the root DNS, therefore they are noted here so that the list above can be kept up-to-date.

TLD Comments
ASIA For Asian websites
EH Western Sahara
KP North Korea
ME Montenegro
RS Republic of Serbia
TEL For telecommunications-related websites and services (overlaps with .mobi)

External Links

Comments

I'll start converting this list to the syntax defined in bug 331510, but I won't have time before the end of July --Jhermans 16:36, 10 June 2006 (PDT)

Over the next few months, I will start to update some of the details using information from the appropriate registries since I am helping out with the effective TLD list with a couple of other people. I have already added the .ax TLD and removed the .post one, which has not been approved and is not in the root DNS. --Rubena 15:37, 10 February 2007 (GMT)