.sk Domain

.sk is the Internet country code top-level domain (ccTLD) for Slovakia. It is administered by SK-NIC a.s.

SK-NIC, a. s., is the administrator of the top-level domain .sk. It has been recognised since the mid-1990s by the manager of the DNS root zone, the Internet Assigned Numbers Authority, as the delegated manager of .SK (changing its name from EUNET Slovakia to EuroWeb Slovakia in 1999 and to SK-NIC in 2006).

In 2006, SK-NIC also entered into an agreement with the Slovak Government unique among country codes in Europe, voluntarily transferring some of the competences of domain administration to the State, and submitting to levels of service requirements and a policy-making committee comprising representatives of the internet community as well as the Government.

SK-NIC is the most successful country-code Top Level Domain registry in Europe in open engagement of its community as resellers, with over 5900 accredited registrars at its maximum in Slovakia (note: there are only three other ccTLDs registries in the European region with over 1000 registrars, and as an example there are only over 40 registrars in neighbouring Czech Republic or 300+ in Germany, largest registry domain-wide).

It has also perfect 100% DNS availability since it has been managed by SK-NIC, a.s. All staff and technology used by SK-NIC, a.s., is situated in Slovakia, where it operates with perfect 100% of DNS availability rate since it as a fully owned subsidiary of the global group CentralNic, listed on the London stock Exchange.

CentralNic acquired SK-Nic from a private Netherlands-based company in December 2017.

Before the split in 1993 former Czechoslovakia used domain .cs.

This text was written in the article .sk on Wikipedia and is available under the GNU Free Documentation License. A List of the authors is available on Wikipedia.

Available Suffixes
  • Registrations on second level (e.g. domain.sk): yes
Useful information
  • Cancellation period 13 days
  • Whois Server whois.sk-nic.sk
Contact Requirements
Available Types:
  • Owner has to be Person or Org
Owner has to fill the following fields:
  • CompanyNumber if type is org
  • IdentificationCardNumber if type is person


The transfer has to be initiated through our system. A valid Authorization Code has to be provided to initiate a transfer successfully. You may obtain the authorization code from the old registrar.


An Ownerchange may produce costs. Please refer to your pricelist. The Ownerchange can be started easily in our system. The old Owner and new Owner will receive an email from the registry and they have to confirm the Ownerchange.

  • check: yes
  • DNSSEC: no

A Restore is not supported by the registry.

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