AI had two letters. Now there is .si
SI is superintelligence. The .si domain is a short, real country domain that reads like the next decade. We find the good names and register them for you through our EU registrar partner.
Names that read like a company.
The one-word classics are gone (see the last tab). These are still free, checked live against the registry when you open this page.
Three letters, still on the table.
We scanned every a–z three-letter .si name. These came back unregistered. Short names like these go first.
The next word is already on everyone's lips.
The word of the moment
Every lab, founder and headline has moved from "AI" to "superintelligence". The domain that spells it out is two letters long.
.ai is already crowded
The good short .ai names were taken years ago and resell for thousands. The .si rush has started too: the one-word names went first, the strong two-word names are still open.
A real, stable country domain
.si is Slovenia's domain, run by its national registry since 1992. Inside the EU, well managed, not a fad extension.
One price. We do the rest.
Registered in your name through our EU registrar partner. You own it, you point it anywhere.
Fair questions.
Is the availability real?
Yes. Every check runs against the .si registry at the moment you ask. Our three-letter list is a scan and can be a few hours old, so we always recheck a name before we register it.
Who owns the domain?
You do. The domain is registered in your name. We handle the order through our EU-based registrar partner and hand you full control.
Can't I register a .si myself?
You can, .si is open to everyone. We save you the search and the setup: we find the names worth having, check them live, handle the registrar side in Europe, and get it done in a day.
Can I use it with my US company and hosting?
Yes. Point it at Vercel, Cloudflare, Google, anything. Email works too.
What if the name I want is taken?
Tell us anyway. Some .si names expire every month, and we can watch a name for you and move fast when it frees up.