.si Domain Names

Super Intelligence companies call .si home

Available now! Starting at

€16.99 €0.01 /1st yr

3-year purchase required. Additional year(s) €16.99

si TLD

Get the domain that's smart about Super Intelligence

An .si domain tells clients in a glance that your company is centered around Super Intelligence technology. Models, tools, apps, platforms: whatever you're shipping, .si puts Super Intelligence front and center in every link, every mention, every product launch. Healthcare, finance, research, creative work — .si is the right address for any venture that runs on Super Intelligence, in any space.

Already have an .ai domain? Cover all your brand bases and secure an .si domain as well. 

With domains, websites, AI-powered tools, email, and more, GoDaddy makes it simple to go from your .si registration to a fully built online presence, all in one place.  

Register your .si domain today.

.si Domain FAQ

Why is Super Intelligence a domain now?

In September 2026, the United States government officially adopted "Super Intelligence" as the formal term via executive order, bringing it into the language of policy, regulation, and public discourse worldwide. As the term took hold, so did the domain. .si. These two two letters map directly to Super Intelligence and became the address for brands and companies building in this space.

Was .si something before Super Intelligence?

.si has been Slovenia's country-code domain since 1992 (and still is) — but the two letters map directly onto "Super Intelligence," and the global domain community has moved quickly to adopt them for that purpose. Today, .si is recognized internationally as the domain of the Super Intelligence era, with registrations open to brands and builders in every country.

Can anyone register a .si domain?

Yes. .si is open to registrants worldwide, with no connection to Slovenia required.

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