INWX
Lower listed renewal
First year
Renewal / year
FROM AI TO SI · SUPERINTELLIGENCE
The next big thing
starts with .si
From artificial intelligence to superintelligence.
Find a .si name for your AI tool, agent, or next startup.
Official registry lookups · No signup. Just possibilities.
Built for your next idea
YOUR SEARCH
CHECKING THE REGISTRY
Your name. Your registrar.
Check & buy at INWX
Hostinger
Lower listed first year
First year
Renewal / year
Reference prices checked 30 Sep 2026, not live quotes for this name. INR estimates use ₹96.06/USD. Taxes and payment fees may apply. Confirm availability and the final price at checkout. No affiliate links.
A name being unregistered doesn’t grant trademark rights. Choose a name you have the right to use.
FOR THE PEOPLE BUILDING WHAT’S NEXT
Your next project starts here.
Agents. Models. Tools. Something entirely new.
Ideas to explore, availability checked on click.
TWO LETTERS. A BIG IDEA.
So, why .si?
SI is shorthand for superintelligence: the idea of AI that surpasses human intelligence across a wide range of tasks. Think of it as inspiration for what you build next.
.si is officially Slovenia’s domain ending, open to people around the world. A real domain with a new way to read it.
Meet the official .si registry ↗Dream up a name
Your AI tool, agent, research lab, or next “what if.” Type a name and we’ll take a look.
Get a registry check
We check the official registry. No record? It looks available. If we can’t verify, we’ll say so.
Make it yours
Compare prices and finish with a registrar. Availability is final only when registration succeeds.
A few good questions.
Does “looks available” mean I can buy it?
It means the official .si registry returned no registration record when checked. A name may still be reserved or restricted, and someone else can register it at any time. Follow a registrar link for the final check. We don’t reserve or sell domains.
Why do registrars sometimes disagree?
Registrars can have different restrictions, cached results, or temporary lookup errors. If one says unavailable and the official registry has no record, try another registrar. A registry record showing the exact domain is registered means it’s already taken.
Can I register a .si domain from outside Slovenia?
Yes, .si registrations are generally open to individuals and organizations worldwide. Your registrar will collect the required contact details and explain the registry’s terms.
Do you store or sell my searches?
This app has no analytics or advertising trackers, and doesn’t write searches to a database. It temporarily caches lookup results in memory for up to five minutes and uses short-lived request counts to prevent abuse. Searches are sent to the .si registry; hosting providers may retain standard access logs. Search links include the name in the URL, so only share names you want others to see.