Check .si Domain Availability
Type a name and we look it up live in the official .si registry. Free, no signup.
.si basics
Who can register a .si domain
Anyone, anywhere. You don't need to live in Slovenia or have a company there. Names can use the letters a–z, numbers and hyphens, up to 63 characters.
What a .si domain costs
About $12 a year to register a new one at most registrars. Names that are already taken sell on the aftermarket for whatever the owner asks.
How to check if a taken name is for sale
- Look at the nameservers in the result above. Names like
domain-for-sale…, Sedo, Dan or Afternic usually mean the owner is selling. - Visit the domain in your browser. Many parked names show a "for sale" page with a price or an offer form.
- Search the big marketplaces (Dynadot, Sedo, Afternic) for the exact name.
Or skip the search and pick a name that's already listed: browse premium .si domains for sale.
For more background, read our complete .si domain guide.
FAQ
Is this .si domain checker free?
Yes. It's free and needs no signup. To avoid overloading the registry, it runs up to 20 lookups a minute.
Where does the availability data come from?
Straight from the official .si registry. Your browser asks Register.si's public RDAP service about the name directly, so the answer is live, not a stored copy.
Does "appears to be available" mean I can register it?
Almost always. A name can still be reserved, blocked or registered by someone else in the seconds before you buy, so the registrar confirms final availability at checkout.
What if the .si domain I want is taken?
Check the registration date and nameservers to see whether it's parked or for sale, try a variation with "get", "try", "app" or "hq" added, or browse .si domains that are for sale.