.sg

Overview

• .sg is the country-code top-level domain (ccTLD) for Singapore.
• It is administered and sponsored by the Singapore Network Information Centre (SGNIC).
• Registrations are processed via accredited registrars and are available at both the second level (e.g., example.sg) and at third level beneath category labels (e.g., example.com.sg).
• Internationalized ccTLDs for Singapore also exist: .新加坡 (Chinese) and .சிங்கப்பூர் (Tamil), registered in 2011.

History

• First registered in September 1988; the ccTLD was delegated/introduced on 19 October 1988.
• Administration and operation are handled by SGNIC (Singapore Network Information Centre).
• 2011: Two IDN ccTLDs (.新加坡 and .சிங்கப்பூர்) were registered for local-language domain names.
• 2 May 2013: SGNIC implemented a Singapore-presence requirement for domains registered after this date, requiring registrants to verify via the Verified@SG portal using SingPass.
• March 2023: The .per.sg personal category was retired.
• As of June 2025 there were 202,905 registered .sg domains.

Usage and Audience

• .sg is widely used in Singapore and is the default ccTLD for entities connected with the country.
• Typical users and sectors:
  • Commercial businesses (.com.sg)
  • Network and information-communications providers (.net.sg)
  • Non-profit and membership organizations (.org.sg)
  • Government bodies and statutory boards (.gov.sg)
  • Educational institutions (.edu.sg)
  • Individuals (personal .per.sg category, retired in 2023)
• IDN ccTLDs (.新加坡, .சிங்கப்பூர்) serve Chinese- and Tamil-language sites respectively.

Registration Rules

• Singapore presence requirement:
  • SGNIC requires proof of Singaporean presence for domains registered after 2 May 2013 via the Verified@SG portal (SingPass login).
• Foreign applicants:
  • Foreign applicants must appoint and duly authorize a local agent to act as the administrative contact.
• Restricted and prohibited labels (examples from SGNIC rules):
  • Terms implying a link to the Singapore Government or its offices (e.g., "Singapore", "Singapura", "Singapore Government", "Government", "President"), unless justified and approved by SGNIC.
  • Words suggesting links to statutory bodies, regulatory authorities or national controlling bodies.
  • "SGNIC", "NIC" and variations that imply a link to SGNIC.
  • Obscene, scandalous, indecent or otherwise unlawful phrases in any language.
  • Geographical names or country names in any language, including two-letter ISO 3166 codes, unless strong justification is provided.
  • Strings resembling second-level labels (.com, .org, .net, .edu, .gov) or the strings "www", "http", "https", and similar.
  • Any phrase SGNIC deems undesirable or likely to cause public confusion, offend good taste or religion, or be contrary to Singapore's security or social interests.
• Allowed characters and label rules:
  • Labels may contain Latin letters (a–z), digits (0–9), hyphens (with restrictions), and accepted non-Latin characters (e.g., Chinese) as permitted by SGNIC.
  • Domain labels must be at least 1 and at most 63 characters long.
  • Hyphen rules: hyphen cannot be the first or last character, and must not be placed in the third and/or fourth position of the label (per SGNIC rules).
• Structure and category-specific eligibility (summary):
  • .com.sg: for commercial entities; applicants should be registered (or registering) with ACRA, Enterprise Singapore, or relevant professional bodies. Foreign corporations may apply with a local administrative agent.
  • .org.sg: for organizations registered (or registering) with the Registry of Societies (ROS); other non-registrable entities such as community clubs, churches and embassies are also eligible in line with SGNIC policy.
  • .edu.sg: restricted to educational institutions recognized or authorized by Singapore authorities (Ministry of Education, Ministry of Social and Family Development, Private Education Act registrations, or equivalent recognition).
  • .gov.sg: reserved for government bodies, statutory boards and related government entities.
  • .net.sg: for licensed Infocomm Media Development Authority (IMDA) network providers, data hosting and related service providers; domain name must reflect the applicant's core business.
  • .sg (second-level): open to applicants with a valid Singapore postal address.
  • .新加坡 and .சிங்கப்பூர்: for Chinese- and Tamil-language domain names respectively.

Notable Notes

• Registrants should consult SGNIC's official Rules of Registration and policy documents for full, authoritative requirements, acceptable characters and any policy updates.

% IANA WHOIS server
% for more information on IANA, visit http://www.iana.org
% This query returned 1 object

domain:       SG

organisation: Singapore Network Information Centre (SGNIC) Pte Ltd
address:      10 Pasir Panjang Road
address:      #03-01 Mapletree Business City
address:      Singapore 117438
address:      Singapore

contact:      administrative
name:         Head (Technical and Ops)
organisation: Singapore Network Information Centre (SGNIC) Pte Ltd.
address:      10 Pasir Panjang Road
address:      #03-01 Mapletree Business City
address:      Singapore 117438
address:      Singapore
phone:        +65 6659 2534
e-mail:       dna@sgnic.sg

contact:      technical
name:         Head (Technical and Ops)
organisation: Singapore Network Information Centre (SGNIC) Pte Ltd.
address:      10 Pasir Panjang Road
address:      #03-01 Mapletree Business City
address:      Singapore 117438
address:      Singapore
phone:        +65 6659 2534
e-mail:       dna@sgnic.sg

nserver:      DSANY2.SGNIC.SG 185.159.197.170 2620:10a:80aa:0:0:0:0:170
nserver:      DSANY3.SGNIC.SG 185.159.198.170 2620:10a:80ab:0:0:0:0:170
nserver:      DSANY4.SGNIC.SG 2a0e:dbc0:1:0:0:0:0:65 45.142.220.65
nserver:      NS4.APNIC.NET 2001:dd8:12:0:0:0:0:53 202.12.31.53
nserver:      PCH.SGZONES.SG 2001:500:14:6057:ad:0:0:1 204.61.216.57
ds-rdata:     26329 8 2 404a15e6ca2f4ce259d8b2bd13894c7823a9513973103c962ff52bfc57a380af

whois:        whois.sgnic.sg

status:       ACTIVE
remarks:      Registration information: http://www.sgnic.sg

created:      1988-10-19
changed:      2024-11-19
source:       IANA