Following President Donald Trump’s September 29, 2026 executive order rebranding “AI” as “super intelligence” or “SI,” the Slovenian domain extension .si has experienced an extraordinary spike in registrations. The order requires U.S. government agencies to use the new terminology, which has fueled a surge reminiscent of Anguilla’s .ai domain boom during the early AI craze. Slovenia’s official domain registry, Registry SI, reported a staggering 2,199% increase in .si registrations during September, with nearly 13,000 new domains registered in the 24 hours following the executive order signing.

Despite this surge, some web hosting platforms like Wix have seen only modest increases in .si registrations, while others like Hostinger report .si as their second most popular domain after .com. Hostinger’s data shows that the majority of new .si domain buyers hail from the U.S. and India, but interestingly, only about 3% of these new domains are explicitly connected to AI or super intelligence projects. Many registrations appear speculative, with buyers acquiring domains potentially for resale or as digital assets, reminiscent of early .ai domain speculation that reached multi-million dollar valuations.

Entrepreneurs are increasingly buying .si domains to protect their brands from future price increases and to position themselves for potential growth of the domain similarly to .ai. Kim Than, CEO of Genius PR, describes domain names as digital collectibles and indicates he has purchased several .si domains as a strategic bet during this early phase. The .si domain remains much cheaper than .ai, costing roughly $12 per year compared to $90 for .ai on platforms like Hostinger, which draws interest for those seeking less costly alternatives or secondary options among AI-related domains.

Although .si is unlikely to eclipse .ai’s dominance in the AI domain market, experts predict continued growth in demand fueled by President Trump’s “super intelligence” framing. Registry SI views the surge as a beneficial boost but acknowledges it won’t mirror Anguilla’s economic windfall. As the U.S. government promotes “super intelligence” terminology, the .si domain is emerging as a notable, affordable domain in the evolving AI branding landscape.