What is the longest TLD you can get for a domain name?

So today I was thinking, what is the longest TLD or “top level domain” you can get for your new domain name?

Doing a bit of googling I found a list of TLDs that iana.org puts out, threw together some scripting and magically you have a list sorted by length. Load up terminal (if your are on a Mac) and run the following command

curl -s http://data.iana.org/TLD/tlds-alpha-by-domain.txt | tail -n+2 | awk '{ print length(), $0 | "sort -n" }'

As of this writing the longest english one is cancerresearch

2 AC
2 AD
2 AE
2 AF
2 AG
2 AI
2 AL
2 AM
2 AO
2 AQ
2 AR
2 AS
2 AT
2 AU
2 AW
2 AX
2 AZ
2 BA
2 BB
2 BD
2 BE
2 BF
2 BG
2 BH
2 BI
2 BJ
2 BM
2 BN
2 BO
2 BR
2 BS
2 BT
2 BV
2 BW
2 BY
2 BZ
2 CA
2 CC
2 CD
2 CF
2 CG
2 CH
2 CI
2 CK
2 CL
2 CM
2 CN
2 CO
2 CR
2 CU
2 CV
2 CW
2 CX
2 CY
2 CZ
2 DE
2 DJ
2 DK
2 DM
2 DO
2 DZ
2 EC
2 EE
2 EG
2 ER
2 ES
2 ET
2 EU
2 FI
2 FJ
2 FK
2 FM
2 FO
2 FR
2 GA
2 GB
2 GD
2 GE
2 GF
2 GG
2 GH
2 GI
2 GL
2 GM
2 GN
2 GP
2 GQ
2 GR
2 GS
2 GT
2 GU
2 GW
2 GY
2 HK
2 HM
2 HN
2 HR
2 HT
2 HU
2 ID
2 IE
2 IL
2 IM
2 IN
2 IO
2 IQ
2 IR
2 IS
2 IT
2 JE
2 JM
2 JO
2 JP
2 KE
2 KG
2 KH
2 KI
2 KM
2 KN
2 KP
2 KR
2 KW
2 KY
2 KZ
2 LA
2 LB
2 LC
2 LI
2 LK
2 LR
2 LS
2 LT
2 LU
2 LV
2 LY
2 MA
2 MC
2 MD
2 ME
2 MG
2 MH
2 MK
2 ML
2 MM
2 MN
2 MO
2 MP
2 MQ
2 MR
2 MS
2 MT
2 MU
2 MV
2 MW
2 MX
2 MY
2 MZ
2 NA
2 NC
2 NE
2 NF
2 NG
2 NI
2 NL
2 NO
2 NP
2 NR
2 NU
2 NZ
2 OM
2 PA
2 PE
2 PF
2 PG
2 PH
2 PK
2 PL
2 PM
2 PN
2 PR
2 PS
2 PT
2 PW
2 PY
2 QA
2 RE
2 RO
2 RS
2 RU
2 RW
2 SA
2 SB
2 SC
2 SD
2 SE
2 SG
2 SH
2 SI
2 SJ
2 SK
2 SL
2 SM
2 SN
2 SO
2 SR
2 ST
2 SU
2 SV
2 SX
2 SY
2 SZ
2 TC
2 TD
2 TF
2 TG
2 TH
2 TJ
2 TK
2 TL
2 TM
2 TN
2 TO
2 TR
2 TT
2 TV
2 TW
2 TZ
2 UA
2 UG
2 UK
2 US
2 UY
2 UZ
2 VA
2 VC
2 VE
2 VG
2 VI
2 VN
2 VU
2 WF
2 WS
2 YE
2 YT
2 ZA
2 ZM
2 ZW
3 ABB
3 ADS
3 AEG
3 AFL
3 AIG
3 APP
3 AXA
3 BAR
3 BBC
3 BCN
3 BET
3 BID
3 BIO
3 BIZ
3 BMW
3 BNL
3 BOO
3 BZH
3 CAB
3 CAL
3 CAT
3 CBA
3 CBN
3 CEO
3 CFA
3 CFD
3 COM
3 CRS
3 DAD
3 DAY
3 DEV
3 DNP
3 DOG
3 EAT
3 EDU
3 ESQ
3 EUS
3 FAN
3 FIT
3 FLY
3 FOO
3 FRL
3 FYI
3 GAL
3 GDN
3 GLE
3 GMO
3 GMX
3 GOO
3 GOP
3 GOV
3 HIV
3 HOW
3 IBM
3 ICE
3 ICU
3 IFM
3 ING
3 INK
3 INT
3 IST
3 IWC
3 JCB
3 JLC
3 JLL
3 KIM
3 KRD
3 LAT
3 LAW
3 LDS
3 LOL
3 MAN
3 MBA
3 MEN
3 MIL
3 MMA
3 MOE
3 MOV
3 MTN
3 NEC
3 NET
3 NEW
3 NGO
3 NHK
3 NRA
3 NRW
3 NTT
3 NYC
3 ONE
3 ONG
3 ONL
3 OOO
3 ORG
3 OVH
3 PET
3 PRO
3 PUB
3 RED
3 REN
3 RIO
3 RIP
3 RUN
3 SAP
3 SCA
3 SCB
3 SEW
3 SEX
3 SKI
3 SKY
3 SOY
3 SRL
3 TAX
3 TEL
3 THD
3 TOP
3 TUI
3 UBS
3 UNO
3 UOL
3 VET
3 VIN
3 WED
3 WIN
3 WME
3 WTC
3 WTF
3 XIN
3 XXX
3 XYZ
3 ZIP
4 AERO
4 ARMY
4 ARPA
4 ASIA
4 AUTO
4 BAND
4 BANK
4 BBVA
4 BEER
4 BEST
4 BIKE
4 BING
4 BLUE
4 BOND
4 BUZZ
4 CAFE
4 CAMP
4 CARE
4 CARS
4 CASA
4 CASH
4 CERN
4 CHAT
4 CITY
4 CLUB
4 COOL
4 COOP
4 CYOU
4 DATE
4 DCLK
4 DESI
4 DIET
4 DOCS
4 DOHA
4 DVAG
4 ERNI
4 FAIL
4 FANS
4 FARM
4 FILM
4 FISH
4 FUND
4 GAME
4 GBIZ
4 GENT
4 GGEE
4 GIFT
4 GOLD
4 GOLF
4 GOOG
4 GUGE
4 GURU
4 HAUS
4 HELP
4 HERE
4 HOST
4 HSBC
4 ICBC
4 IMMO
4 INFO
4 ITAU
4 JAVA
4 JOBS
4 JPRS
4 KDDI
4 KIWI
4 KRED
4 LAND
4 LGBT
4 LIDL
4 LIFE
4 LIMO
4 LINK
4 LIVE
4 LOAN
4 LOVE
4 LTDA
4 LUXE
4 MAIF
4 MEET
4 MEME
4 MENU
4 MINI
4 MOBI
4 MODA
4 MTPC
4 NAME
4 NAVY
4 NEWS
4 NICO
4 PAGE
4 PICS
4 PINK
4 PLAY
4 PLUS
4 POHL
4 PORN
4 POST
4 PROD
4 PROF
4 QPON
4 REIT
4 RENT
4 REST
4 RICH
4 RSVP
4 RUHR
4 SALE
4 SARL
4 SAXO
4 SCOR
4 SCOT
4 SEAT
4 SEXY
4 SHOW
4 SITE
4 SNCF
4 SOHU
4 SONY
4 SURF
4 TAXI
4 TEAM
4 TECH
4 TIPS
4 TOWN
4 TOYS
4 VOTE
4 VOTO
4 WANG
4 WEIR
4 WIEN
4 WIKI
4 WINE
4 WORK
4 XBOX
4 YOGA
4 ZONE
5 ACTOR
5 ADULT
5 ARCHI
5 AUDIO
5 AUTOS
5 AZURE
5 BIBLE
5 BINGO
5 BLACK
5 BOATS
5 BOOTS
5 BUILD
5 CANON
5 CARDS
5 CHEAP
5 CHLOE
5 CISCO
5 CITIC
5 CLICK
5 CLOUD
5 COACH
5 CODES
5 CROWN
5 CYMRU
5 DABUR
5 DANCE
5 DEALS
5 DELTA
5 DRIVE
5 EARTH
5 EMAIL
5 EPSON
5 FAITH
5 FOREX
5 FORUM
5 GIFTS
5 GIVES
5 GLASS
5 GLOBO
5 GMAIL
5 GREEN
5 GRIPE
5 GUIDE
5 HOMES
5 HONDA
5 HORSE
5 HOUSE
5 IINET
5 IRISH
5 JETZT
5 KOELN
5 KYOTO
5 LEASE
5 LEGAL
5 LEXUS
5 LIXIL
5 LOANS
5 LOTTE
5 LOTTO
5 LUPIN
5 MANGO
5 MEDIA
5 MIAMI
5 MONEY
5 MOVIE
5 NADEX
5 NEXUS
5 NINJA
5 NOKIA
5 OMEGA
5 OSAKA
5 PARIS
5 PARTS
5 PARTY
5 PHOTO
5 PIZZA
5 PLACE
5 POKER
5 PRAXI
5 PRESS
5 REHAB
5 REISE
5 RICOH
5 ROCKS
5 RODEO
5 SENER
5 SHOES
5 SKYPE
5 SOLAR
5 SPACE
5 STUDY
5 STYLE
5 SUCKS
5 SWISS
5 TATAR
5 TIRES
5 TIROL
5 TODAY
5 TOKYO
5 TOOLS
5 TORAY
5 TOURS
5 TRADE
5 TRUST
5 VEGAS
5 VIDEO
5 VISTA
5 VODKA
5 WALES
5 WATCH
5 WORKS
5 WORLD
5 XEROX
6 ABBOTT
6 ACTIVE
6 AGENCY
6 AIRTEL
6 ALSACE
6 BAYERN
6 BERLIN
6 BHARTI
6 BROKER
6 CAMERA
6 CAREER
6 CASINO
6 CENTER
6 CHANEL
6 CHROME
6 CHURCH
6 CLAIMS
6 CLINIC
6 COFFEE
6 CONDOS
6 CREDIT
6 DATING
6 DATSUN
6 DEGREE
6 DENTAL
6 DESIGN
6 DIRECT
6 DOOSAN
6 DURBAN
6 EMERCK
6 ENERGY
6 ESTATE
6 EVENTS
6 EXPERT
6 FUTBOL
6 GARDEN
6 GIVING
6 GLOBAL
6 GOOGLE
6 GRATIS
6 HERMES
6 HIPHOP
6 HOCKEY
6 INSURE
6 JOBURG
6 JUEGOS
6 KAUFEN
6 LAWYER
6 LONDON
6 LUXURY
6 MADRID
6 MAISON
6 MARKET
6 MONASH
6 MORMON
6 MOSCOW
6 MUSEUM
6 NAGOYA
6 NISSAN
6 OFFICE
6 ONLINE
6 ORACLE
6 ORANGE
6 OTSUKA
6 PHOTOS
6 PHYSIO
6 PIAGET
6 PICTET
6 QUEBEC
6 RACING
6 REALTY
6 REISEN
6 REPAIR
6 REPORT
6 REVIEW
6 RYUKYU
6 SAKURA
6 SANOFI
6 SCHOOL
6 SCHULE
6 SOCCER
6 SOCIAL
6 STUDIO
6 SUPPLY
6 SUZUKI
6 SWATCH
6 SYDNEY
6 TAIPEI
6 TATTOO
6 TENNIS
6 TIENDA
6 TOYOTA
6 TRAVEL
6 VIAJES
6 VILLAS
6 VISION
6 VOTING
6 VOYAGE
6 WALTER
6 WEBCAM
6 XPERIA
6 YACHTS
6 YANDEX
7 ABOGADO
7 ACADEMY
7 ANDROID
7 AUCTION
7 BAUHAUS
7 BENTLEY
7 BROTHER
7 CAPITAL
7 CARAVAN
7 CAREERS
7 CARTIER
7 CHANNEL
7 COLLEGE
7 COLOGNE
7 COMPANY
7 COOKING
7 CORSICA
7 COUNTRY
7 COUPONS
7 COURSES
7 CRICKET
7 CRUISES
7 DENTIST
7 DIGITAL
7 DOMAINS
7 EXPOSED
7 EXPRESS
7 FASHION
7 FINANCE
7 FISHING
7 FITNESS
7 FLIGHTS
7 FLORIST
7 FLOWERS
7 FORSALE
7 FROGANS
7 GALLERY
7 GENTING
7 GUITARS
7 HAMBURG
7 HANGOUT
7 HITACHI
7 HOLIDAY
7 HOSTING
7 HOTELES
7 HOTMAIL
7 JEWELRY
7 KITCHEN
7 KOMATSU
7 LACAIXA
7 LASALLE
7 LATROBE
7 LECLERC
7 LIAISON
7 LIMITED
7 MARKETS
7 NETBANK
7 NETWORK
7 NEUSTAR
7 OKINAWA
7 ORGANIC
7 PANERAI
7 PHILIPS
7 REALTOR
7 RECIPES
7 RENTALS
7 REVIEWS
7 SAMSUNG
7 SANDVIK
7 SCHMIDT
7 SCHWARZ
7 SCIENCE
7 SHIKSHA
7 SHRIRAM
7 SINGLES
7 SPIEGEL
7 STARHUB
7 STATOIL
7 SUPPORT
7 SURGERY
7 SYSTEMS
7 TEMASEK
7 THEATER
7 TICKETS
7 TOSHIBA
7 TRADING
7 WEBSITE
7 WEDDING
7 WHOSWHO
7 WINDOWS
7 YOUTUBE
7 ZUERICH
8 AIRFORCE
8 ATTORNEY
8 BARCLAYS
8 BARGAINS
8 BOUTIQUE
8 BRADESCO
8 BRUSSELS
8 BUDAPEST
8 BUILDERS
8 BUSINESS
8 CAPETOWN
8 CATERING
8 CLEANING
8 CLOTHING
8 COMMBANK
8 COMPUTER
8 DELIVERY
8 DEMOCRAT
8 DIAMONDS
8 DISCOUNT
8 DOWNLOAD
8 ENGINEER
8 EVERBANK
8 EXCHANGE
8 FEEDBACK
8 FIRMDALE
8 FLSMIDTH
8 FOOTBALL
8 GRAPHICS
8 HOLDINGS
8 INFINITI
8 IPIRANGA
8 ISTANBUL
8 LIGHTING
8 MARRIOTT
8 MEMORIAL
8 MORTGAGE
8 MOVISTAR
8 PARTNERS
8 PHARMACY
8 PICTURES
8 PLUMBING
8 PROPERTY
8 REDSTONE
8 SAARLAND
8 SERVICES
8 SOFTWARE
8 SUPPLIES
8 TRAINING
8 VENTURES
8 XN--NODE
8 XN--P1AI
8 YOKOHAMA
9 ACCENTURE
9 ALLFINANZ
9 AMSTERDAM
9 AQUARELLE
9 BARCELONA
9 BLOOMBERG
9 CHRISTMAS
9 COMMUNITY
9 DIRECTORY
9 EDUCATION
9 EQUIPMENT
9 FINANCIAL
9 FURNITURE
9 GOLDPOINT
9 HOMEDEPOT
9 INSTITUTE
9 LANCASTER
9 MARKETING
9 MELBOURNE
9 MICROSOFT
9 MONTBLANC
9 SOLUTIONS
9 VACATIONS
9 XN--90AIS
9 XN--C1AVG
9 XN--D1ALF
9 XN--FHBEI
9 XN--J1AEF
9 XN--J1AMH
9 XN--L1ACC
9 XN--NQV7F
9 XN--P1ACF
9 XN--TCKWE
9 XN--VHQUV
9 YODOBASHI
10 ACCOUNTANT
10 APARTMENTS
10 ASSOCIATES
10 BNPPARIBAS
10 CONSULTING
10 CREDITCARD
10 CUISINELLA
10 EUROVISION
10 FOUNDATION
10 HEALTHCARE
10 IMMOBILIEN
10 INDUSTRIES
10 MANAGEMENT
10 PROPERTIES
10 REPUBLICAN
10 RESTAURANT
10 TATAMOTORS
10 TECHNOLOGY
10 TELEFONICA
10 UNIVERSITY
10 VISTAPRINT
10 VLAANDEREN
10 XN--30RR7Y
10 XN--3PXU8K
10 XN--45Q11C
10 XN--4GBRIM
10 XN--55QX5D
10 XN--80ASWG
10 XN--90A3AC
10 XN--9DBQ2A
10 XN--9ET52U
10 XN--C2BR7G
10 XN--CG4BKI
10 XN--CZRS0T
10 XN--CZRU2D
10 XN--FIQ64B
10 XN--FIQS8S
10 XN--FIQZ9S
10 XN--IO0A7I
10 XN--KPUT3I
10 XN--MXTQ1M
10 XN--O3CW4H
10 XN--PSSY2U
10 XN--UNUP4Y
10 XN--WGBH1C
10 XN--WGBL6A
10 XN--Y9A3AQ
11 ACCOUNTANTS
11 BARCLAYCARD
11 BLACKFRIDAY
11 BRIDGESTONE
11 CONTRACTORS
11 ENGINEERING
11 ENTERPRISES
11 INVESTMENTS
11 MOTORCYCLES
11 PHOTOGRAPHY
11 PRODUCTIONS
11 WILLIAMHILL
11 XN--11B4C3D
11 XN--1QQW23A
11 XN--3BST00M
11 XN--3DS443G
11 XN--42C2D9A
11 XN--45BRJ9C
11 XN--55QW42G
11 XN--6FRZ82G
11 XN--80AO21A
11 XN--CZR694B
11 XN--D1ACJ3B
11 XN--ESTV75G
11 XN--FJQ720A
11 XN--FLW351E
11 XN--GECRJ9C
11 XN--H2BRJ9C
11 XN--HXT814E
11 XN--IMR513N
11 XN--J6W193G
11 XN--KPRW13D
11 XN--KPRY57D
11 XN--NYQY26A
11 XN--PGBS0DH
11 XN--Q9JYB4C
11 XN--RHQV96G
11 XN--S9BRJ9C
11 XN--SES554G
11 XN--T60B56A
11 XN--VUQ861B
11 XN--XHQ521B
11 XN--ZFR164B
12 CONSTRUCTION
12 SCHOLARSHIPS
12 VERSICHERUNG
12 XN--3E0B707E
12 XN--80ADXHKS
12 XN--80ASEHDB
12 XN--MGB9AWBF
12 XN--MGBAB2BD
12 XN--MGBPL2FH
12 XN--MK1BU44C
12 XN--NGBC5AZD
12 XN--OGBPF8FL
12 XN--QCKA1PMC
13 INTERNATIONAL
13 SPREADBETTING
13 XN--FPCRJ9C3D
13 XN--FZC2C9E2C
13 XN--YFRO4I67O
13 XN--YGBI2AMMX
14 CANCERRESEARCH
14 XN--6QQ986B3XL
14 XN--B4W605FERD
14 XN--FIQ228C5HS
14 XN--MGBAAM7A8H
14 XN--MGBAYH7GPA
14 XN--MGBBH1A71E
14 XN--MGBX4CD0AB
15 SANDVIKCOROMANT
15 XN--I1B6B1A6A2E
15 XN--KCRX77D1X4A
15 XN--LGBBAT1AD8J
15 XN--MGBA3A4F16A
15 XN--MGBC0A9AZCG
15 XN--NQV7FS00EMA
16 XN--XKC2AL3HYE2A
17 XN--MGBERP4A5D4AR
17 XN--XKC2DL3A5EE0H
22 XN--CLCHC0EA0B2G2A9GCD
23 XN--VERMGENSBERATER-CTB
24 XN--VERMGENSBERATUNG-PWB

That last one, the long one is from German, they do financial advise funny, their domain name is dvag.de which is quite short. I expect many more crazy long ones from across the pond.