President Donald Trump's decision to rebrand artificial intelligence as "super intelligence," or SI, has triggered an unprecedented boom in registrations for Slovenia's .si country-code domain. The surge began after the president's September 22 speech at the United Nations General Assembly and accelerated following his September 29 executive order requiring federal agencies to use the new terminology.

Data from Slovenia's domain registry, Register.si, show that new .si registrations reached 46,066 in September, more than 13 times the 3,515 recorded in August. Daily figures hit peaks exceeding 12,000 in early October, with the total number of .si domains climbing rapidly from around 190,000 early in September to over 262,000 by late in the month.

The .si extension has temporarily outpaced Anguilla's .ai domain in daily registrations. One analysis found more .si domains registered than .ai in the week after the U.N. speech. Hosting provider Hostinger reported thousands of .si sign-ups on September 30 and October 1 alone, with many coming from the United States and India.

Domain investors have driven much of the activity, with reports of significant resale activity on platforms such as Dynadot. Some short and relevant names have commanded premium prices, echoing the earlier .ai boom but at lower entry costs. Slovenia's registry charges a modest wholesale fee, generating limited additional revenue compared with the windfall Anguilla enjoyed from .ai in prior years.

Anguilla previously benefited substantially from .ai registrations tied to the original AI hype, with government revenue from the extension reaching tens of millions of dollars annually. The shift in attention to .si now presents a more competitive landscape for the Caribbean territory's domain business.

The Slovenia registry has cautioned against direct comparisons to Anguilla's experience, noting that most new .si registrations appear speculative rather than tied to immediate operational use by companies. Nevertheless, the market response demonstrates how U.S. policy terminology can influence global domain demand almost overnight.