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Title: .nu  
Author: World Heritage Encyclopedia
Language: English
Subject: .se, .np, .no, .rw, .vi
Collection: Communications in Niue, Country Code Top-Level Domains
Publisher: World Heritage Encyclopedia


.nu domain
Introduced 1997
TLD type Country code top-level domain
Status Active
Registry .SE (The Internet Infrastructure Foundation)
Sponsor Internet Users Society - Niue
Intended use Entities connected with  Niue
Actual use Used for a multitude of sites all over, few with any connection to Niue; especially popular in Sweden, Denmark, the Netherlands and Belgium since "nu" is Swedish, Danish and Dutch for "now"
Registration restrictions None
Structure Registrations permitted at second level
Documents Terms and conditions
Dispute policies UDRP
Website NuNames

.nu is the Internet


  • Administration 1
  • Usage of .nu 2
  • Internationalised domains 3
  • Domain revocation policy 4
  • Pricing 5
  • Litigation 6
  • McAfee SiteAdvisor 7
  • References 8
  • External links 9


As of September 2, 2013 .SE (The Internet Infrastructure Foundation) has assumed responsibility for administration and technical operation of the .nu domain.[1]

Usage of .nu

The .nu domain is particularly popular in Sweden, Denmark, the Netherlands and Belgium, as nu is the word for "now" in Swedish, Danish and Dutch[2] - an example of a domain hack. "Nu" is also an alternative, slightly old fashioned adverb meaning "now" in Norwegian, but "nå" is the more frequently used word and hence .nu is currently not used much by Norwegians. Partially owing to restrictive domain rules for the ccTLD assigned to Sweden, .se, .nu was used for creative marketing of websites such as to show what is currently showing on TV, and in the Netherlands for websites like, Dutch for

Internationalised domains

In March 2000, .NU Domain Ltd became the first TLD to offer registration of Internationalized domain names,[3] supporting the full Unicode character set.[4] Unlike other TLDs, no browser plugin or punycode capable browser was required on the client side for use of these names, as .NU Domain's web servers converted and redirected any web queries issued in a variety of international character encodings. However, in March 2010, .NU Domain announced at ICANN that they had recently disabled their general wildcard domain name resolution technology, and thus were implementing IDNs only by the now standard punycode implementation, and were reducing the accepted set of IDN characters for .NU Domain names to a subset of the ISO-8859-1 western European characters.[5]

Domain revocation policy

.NU domain names are revoked without refund for displaying images of child sexual abuse, being involved with phishing, spamming, email theft, search engine abuse, or any unlawful purpose.[6]


Domain names can be as short as one character. A premium of €500/yr applies to name registrations of one character in length, €250 for domain names of two-character length, and €30 per year for domain names of any other length, although alternate registrars have two-letter domain names available for the price of normal length names. In June, 2008, .NU Domain began permitting registration of all-numeric domain names.[7]


A 2005 UDRP case regarding[8] made the assertion under "Factual background" that "The Complainants [WorldNames, Inc. and NU Domain Ltd] own and operate the .NU ccTLD". The companies in question are operating the registry for .nu on behalf of the Internet Users Society, but it is incorrect to state that they "own" the TLD, as TLDs in general are delegated and managed rather than "owned".[9][10] The case does, however, point out that these companies own a registered trademark to ".nudomain" in several countries.

McAfee SiteAdvisor

In March 2007, McAfee SiteAdvisor issued a report explaining the functionality of SiteAdvisor. As part of that report, .nu domain websites were stated to be among the highest-risk TLDs for browser exploits. However, in most other respects, .nu sites were ranked overall as a low to moderate risk.[11] Shortly thereafter, .NU Domain issued a press release stating that SiteAdvisor had ranked .nu sites among the lowest for risk.[12] In 2008 McAfee reported that .net and .com had become the riskiest TLDs.[13]


  1. ^ ".SE completes successful transition of the .nu domain". 
  2. ^ "nu". OmegaWiki. 2006-07-22. Retrieved 2009-09-30. 
  3. ^ "NU Domain Ltd Challenges .Com With Announcement of First Non-English Internet Addresses; Microsoft endorses NUBIND as compatible with Microsoft Internet Explorer 5.0, and Windows 2000". 2000-03-07. Retrieved 2009-09-30. 
  4. ^ "IDN details". Retrieved 2009-09-30. 
  5. ^ "Mozilla - add .nu to IDN whitelist". Mozilla. 2010-04-19. 
  6. ^ """NU Domain Terms and Conditions, section 12, "Acceptable Use. Retrieved 2009-09-30. 
  7. ^ NU Domain Launches Numeric Domain Names
  8. ^ See the WIPO Administrative Panel Decision
  9. ^ Computerworld NZ: Niue struggles against ‘digital colonialism’, 27 March 2007
  10. ^ "Niue government criticised over internet stance".  
  11. ^ SiteAdvisor: Mapping the MalWeb, March 2007
  12. ^ .NU Domain Press Release: McAfee Report Ranks .NU Websites Among Lowest Risk, March 2007
  13. ^ Keats, Shane (2008-06-04). "Mapping the Mal Web, Revisited" (PDF).  

External links

  • IANA WHOIS record for .nu
  • IUSN Foundation
  • IUSN's WiFi Nation
  • Internet Niue
  • Niue is dead. Long live .nu!, The Register
  • Official website of the government of Niue
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