Domain .si - national domain: Slovenia

Registration time: Realtime

How to register a .si internet domain?

  • Registration fee
    $28,49 / year
  • Renewal fee
    $51,49 / year
  • Trade fee
    free of charge
    The domain owner change requires email confirmation by both parties. The domain owner change does not extend its validity.
  • Transfer fee
    free of charge
    renewal not included
    The transfer must be confirmed by e-mail by the current domain subscriber. The authorization message will be sent to the current subscriber's email address. The domain transfer does not extend its validity.
  • Reactivation fee
    $71,49
    Additional restore fee is due on the domain renewal date (6 days before expiration date). Restore is possible only within 14 days thereafter.
  • Minimum registration and renewal period
    1 year
  • Registration time
    Realtime
  • Restrictions
    No
VAT may apply for EU individual customers

.si domain information

.si domain (Slovenia) registration is available for all interested. 

Are you looking to make a unique digital footprint that stands out from the crowd? Consider registering a .si domain name today! Perfect for businesses, organizations, or individuals with a connection to Slovenia, a .si domain name not only showcases your ties to this vibrant and innovative country, but also offers a unique opportunity for creative domain hacks due to the linguistic versatility of "si".

With the .si domain being ranked as one of the most secure, you can rest assured knowing that you're choosing a reliable and safe online presence. Don't miss out on this opportunity to create a memorable and impactful online identity with a .si domain name. 

More than just Slovenia’s domain

The .SI domain has recently begun to attract attention from companies in the tech and AI industries as well. This is all due to the abbreviation SI, which has come to be used to refer to “Super Intelligence”.

This association has made the .SI domain an attractive option for startups, tech companies, and projects related to artificial intelligence and the development of new technologies. .si pairs well with the names of products, apps, and services, while also serving as an alternative or complement to the popular .AI domain.

Interest in this use of .SI surged in September 2026. By the end of the month, the Slovenian registry had recorded as many as 46,066 new .SI domain registrations, and the boom continued into early October.

If you’re developing a project related to AI or Super Intelligence, the .SI domain offers the opportunity to create a short and distinctive address that directly references this field. However, we do not recommend completely abandoning the Anguilla domain, .AI. It may take some time before the .SI extension becomes firmly established in people’s minds. It is also possible that both of these extensions will coexist.

.si domain registration without restrictions

Anyone can register— no Slovenian address, company registration, or local presence required. The .si domain is open to individuals and businesses from anywhere in the world, which makes it just as accessible for a startup in San Francisco as for a small business in London. If you've found a name you like, you can register it today without any additional paperwork or eligibility checks.

.si domain alternatives (comparison)

Domain          Country             Registration/yr            Transfer          Restrictions

.pl                    Poland                  €3.99                          free                    No
.it                     Italy                      €14.99                         $14.99                Yes
.cz                    Czechia                €14.99                         free                   No
.at                    Austria                 €17.49                         free                   No
.hu                   Hungary               €25.49                        €25.49               Yes
.hr                   Croatia                 €126.49                        €126.49              Yes

 

Why choose a .si domain for your business?

Purchasing a .si domain name could be beneficial for several reasons:

  1. Credibility: A .si domain can provide a sense of locality and credibility in Slovenia. It shows that you're committed to serving the Slovenian market.
  2. Availability: As .si is a less common domain extension, there's a higher chance that your desired domain name is still available.
  3. Domain Hacks: The .si domain is popular for domain hacks due to the word "si" being the second person singular of the verb 'to be' in Slovene. This can allow for creative and memorable domain names.
  4. Security: The .si registry (ARNES) implements high security standards (including DNSSEC), making the Slovenian TLD one of the most secure and reliable options in Europe.

Interestingly, domain hacks for the .si TLD are quite popular due to the word "si" being the second person singular of the verb 'to be' in Slovene. This has led to the creation of many domains using such hacks, one of the most popular being zadovoljna.si ('You are pleased', feminine form). The word "sí" also translates from Spanish as "yes", so the TLD has been used by some Spanish-language websites as well.

Information about the .si domain registry

.si - country code top-level domain name (ccTLD): Slovenia

The available domain TLDs: .si

Registry: Academic and Research Network of Slovenia (ARNES)

Website: https://www.register.si/en/

Public WHOIS server: whois.arnes.si

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