TLD List

This is a list of all TLD (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 doesn't seem to be a good list.

See

• http://en.wikipedia.org/wiki/List_of_Internet_top-level_domains
• http://www.neuhaus.com/domaincheck/domain_list.htm

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

http://data.iana.org/TLD/tlds-alpha-by-domain.txt
# Version 2005121001, Last Updated Sun Dec 11 09:07:01 2005 UTC

TLD	Type	List of 3rd-level domains	Comments
AC	C	com.ac edu.ac gov.ac net.ac mil.ac org.ac	3rd-level regs for residents http://www.ascension-island.gov.ac/ http://www.tbs.edu.ac/
AD	C	nom.ad
AE	C	ae net.ae co.ae gov.ae ac.ae sch.ae org.ae mil.ae pro.ae name.ae
AERO	C
AF	C	??
AG	C	com.ag org.ag net.ag co.ag nom.ag
AI	C	off.ai com.ai net.ai org.ai
AL	B	gov.al edu.al org.al com.al net.al
AM	C	com.am net.am org.am (others ?)
AN	C	???
AO	B	???
AQ	A
AR	B	com.ar net.ar org.ar ????
ARPA	B	e164.arpa in-addr.arpa ip6.arpa uri.arpa urn.arpa
AS	A
AT	C	gv.at ac.at co.at or.at
AU	D	com.au net.au asn.au org.au id.au csiro.au For gov.au and edu.au : wa nsw vic qld sa tas nt act	mostly B, but gov.au and edu.au are splitted geographically
AW	C	com.aw
AZ	C	com.az net.az org.az	???
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.be
BE	C	ac.be (others ?)	There are commercial 3th level domains (to.be, com.be, co.be, xa.be, ap.be) but not official
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
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
CC	A
CD	C	.cd .com.cd .net.cd .org.cd (others ?)
CF	A
CG
CH	A
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
DJ
DK
DM
DO
DZ
EC
EDU	A
EE
EG
ER
ES
ET
EU
FI
FJ
FK
FM
FO
FR
GA
GB
GD
GE
GF
GG
GH
GI
GL
GM
GN
GOV	A?
GP
GQ
GR
GS
GT
GU
GW
GY
HK
HM
HN
HR
HT
HU
ID
IE
IL
IM
IN
INFO	A
INT	C?		should be A, but there exists a europa.eu.int too
IO
IQ
IR
IS
IT
JE
JM
JO
JOBS
JP
KE
KG
KH
KI
KM
KN
KR
KW
KY
KZ
LA
LB
LC
LI
LK
LR
LS
LT
LU
LV
LY
MA
MC
MD
MG
MH
MIL	B?	army.mil navy.mil ...
MK
ML
MM
MN
MO
MOBI	C	weather.mobi music.mobi ...
MP
MQ
MR
MS
MT
MU
MUSEUM	C
MV
MW
MX
MY
MZ
NA
NAME	C		used to be B, but now has second level too
NC
NE
NET	A
NF
NG
NI
NL
NO
NP
NR
NU
NZ
OM
ORG	A
PA
PE
PF
PG
PH
PK
PL
PM
PN
POST	C	numeric country-codes ?
PR
PRO	C	law.pro med.pro cpa.pro
PS
PT
PW
PY
QA
RE
RO
RU
RW
SA
SB
SC
SD
SE
SG
SH
SI
SJ
SK
SL
SM
SN
SO
SR
ST
SU
SV
SY
SZ
TC
TD
TF
TG
TH
TJ
TK
TL
TM
TN
TO
TP
TR
TRAVEL	A		thirth levels seems to be explicitely forbidden
TT
TV
TW
TZ
UA
UG
UK
UM
US
UY
UZ
VA
VC
VE
VG
VI
VN
VU
WF
WS
YE
YT
YU
ZA
ZM
ZW