.si = super intelligence
Domains worth owning.
Short, brandable names for AI and software. Find a .si you can register today, check any name live, or buy a premium domain safely through AtomPay.
Checked live · No account needed · Premium sales with AtomPay protection
I’m building
Hivex market
Premium names for AI and software.
Each one comes with a brand concept, a story and a safe way to buy. Buy at the listed price or make an offer, with the payment held by AtomPay.
Why .si
The extension that says what you build.
The same words, measured across this index: most are gone on .com and many on .ai. On .si they are free to register today.
.si = super intelligence
Officially, .si is Slovenia’s country domain. In AI it reads as super intelligence, so your name says “your idea, super intelligence” before anyone visits the site. Two letters, open to everyone worldwide, and still free for words that are long gone on .com and .ai.
already taken as .ai
where the .com looks unclaimed too
Hivex signals
What builders are claiming.
Names we spotted free, and the day we saw someone take them.
.si shortlists
Shortlists, already made for you.
Pick a shelf to begin. Every .si name on it is free to register right now.
Hivex index
Short .si names, free to register.
Checked live. Filter by what you are building.
How buying works
Bought safely, every time.
AtomPay holds the payment. The seller is paid only once the domain is in your account.
AtomPay holds the payment.
The seller is paid only once the domain is in your account.
Checked live.
Availability is checked when you look, not copied from an old list.
A reply within one business day.
Every serious offer gets an answer.
No account needed.
Search, check and shortlist without signing up.
Questions
Good to know.
Short answers about the names, registering, buying and advertising.
What does .si stand for?
Officially, it is Slovenia’s country-code extension. In AI it reads as super intelligence, which is why founders building AI products choose it. Anyone in the world can register one through an accredited registrar.
Are the .si names really free to register?
Each one was checked live and confirmed unclaimed before it was listed, not guessed. The list is checked again around the clock, every name at least every few days, and names someone registers drop out. A name can still go in minutes, so your registrar’s checkout is the final word.
Where do I register one?
At any accredited .si registrar. Each name links to Dynadot to search and register. You pay the registrar's normal price and nothing to Hivex.
Is Hivex only for .si?
No. Premium names on any extension are for sale on the Premium page and are bought the same way. The free-to-register index focuses on .si for now, because that is where good AI and software names are still open.
Who can own a .si domain?
Anyone. Registration is open worldwide through accredited registrars, and the short extension reads naturally in English. It also echoes “yes” in Spanish and Italian.
How does buying a premium name work?
Agree on a price, either the listed price or an offer. You pay through AtomPay, the checkout of Atom.com, one of the largest domain marketplaces. Atom holds the payment, moves the domain to you, and only then pays the seller.
How are names chosen for the index?
Short names made of real words people already know, easy to say and spell, with a clear meaning and a good fit for AI and software. Words with negative or unpleasant meanings sit lower. The order is a guide to help you sort. Your own taste is the final judge.
What do the .com, .ai and .io marks mean?
They show the same name on other extensions. A struck mark means someone holds it there. “Looks unclaimed” means it is probably free but not confirmed, so check it before you count on it.
Can I advertise here?
Yes. There are 7 placements, from $79 a month in the footer to $499 for the homepage hero. Each booking raises the price of the next slot in that placement, and your own price stays locked while you renew.