.si domains are attracting attention as Donald Trump’s administration adopts “Super Intelligence” and “SI” terminology. Slovenia’s domain registry reports increased registration activity, and sellers are advertising some names for millions of dollars. Those facts deserve separate treatment: a policy change, new registrations, and asking prices measure different things.
Here is what the official records and live listings showed during our September 30, 2026 review—and what they cannot tell us about lasting demand.
What Trump’s terminology change actually covers
The September 29 executive order directs executive departments and agencies to use “Super Intelligence” and “SI” instead of “Artificial Intelligence” and “AI” in specified official communications and non-statutory documents, to the extent permitted by law.
It does not require rewriting previously issued regulations, contracts, grants, or historical documents. For implementation, it initially maps the new terms to the existing statutory definition of artificial intelligence and requests proposed legislative language within 60 days.
That is a change in federal terminology. It is not, by itself, evidence that a particular model has reached a new level of intelligence, or that private companies worldwide must change their branding.
Why .si domains entered the story
IANA’s delegation record identifies .si as a country-code top-level domain managed by Slovenia’s Academic and Research Network, ARNES. The record dates its registration to April 1, 1992. It is an existing national extension, not a newly created AI domain.
In its announcement about passing 200,000 domains, Register.si says registrations had already been increasing in preceding months and that the recent naming discussion stimulated additional interest. It points to Trump’s September 19 social-media discussion, which included “Superior Intelligence.”
This chronology matters. The interest did not begin only with the September 29 order, and the registry’s explanation does not quantify what share of registrations came from speculation, brand protection, or actual product launches.
What the registration numbers show
During our September 30 review, the registry’s English homepage displayed the following counters. These are a retrieved snapshot of changing statistics, not permanent totals:
| Registry label | Displayed value |
|---|---|
| .si domains registered | 235,266 |
| New domains in last month | 46,066 |
| New domains in last 24 hours | 11,394 |
| Registrars | 92 |
The “last month” figure is reproduced under the registry’s own label; it should not be silently relabeled as August. A September 30 report by BDM cited 3,515 registrations for August and an earlier 24-hour snapshot of 3,911.
Different rolling snapshots can produce different headlines without describing the same measurement window. The supplied claim of more than 7,200 in 24 hours lacks a timestamp we independently verified, so we use the registry snapshot above instead.
Registrations measure names being registered. They do not reveal how many distinct buyers participated, how many sites became active, or how much anyone paid on the resale market.
Million-dollar .si domains: asking prices, not proven sales
We checked the seller pages directly. The build.si listing displayed $10,000,000, while seed.si displayed $8,000,000. The build.si page also advertised coding.si and predict.si at $5,000,000 each.
| Name | Advertised price at review | Evidence type |
|---|---|---|
| build.si | $10 million | Seller listing |
| seed.si | $8 million | Seller listing |
| coding.si | $5 million | Related listing on build.si |
| predict.si | $5 million | Related listing on build.si |
These pages establish what sellers asked. They do not establish a completed transaction, an accepted offer, or an independent valuation. We did not verify completed sales at those amounts.
A seller can publish a high price without finding a buyer. To assess a transaction claim, look for the sale date, confirmation that the transfer completed, and credible reporting of the amount. Repeated screenshots of one listing do not create additional sales evidence.
Does the registration surge mean millions for Slovenia?
Register.si’s announcement says registration occurs through registrars rather than directly with the registry. It states a €10 registry registration price for registrars, with each registrar setting its own customer price. The registry also rejects unsupported media claims of millions in earnings from the increased interest.
A speculative resale price and a registry registration fee are different flows of money. Multiplying a seller’s asking price by the number of registered domains would not produce a meaningful estimate of registry revenue.
Temporary attention or lasting adoption?
Our interpretation is that the evidence supports a surge in attention and registration activity. It does not yet establish durable adoption of .si as a global technology brand. Several developments would help distinguish a lasting market from a short-lived rush:
- Active websites: look for functioning products and organizations, not only parked sale pages.
- Renewals: follow whether newly registered names remain registered when renewal costs arrive.
- Completed transactions: separate documented sales from advertisements.
- Independent adoption: look for use across unrelated businesses rather than one seller’s portfolio.
- Audience recognition: test whether customers understand and remember the address.
These are analytical questions, not forecasts. A naming trend can generate registrations before it generates customers, products, or a reliable resale market.
What this means for an AI website owner
Start with the purpose of the name. Would it still suit your project if “SI” stopped appearing in headlines next month? Can a reader spell it after hearing it once? Would using it improve the existing brand, or simply add another address to maintain?
If you are evaluating a domain for a real project, compare the registration and renewal terms with alternatives and decide how it fits your site structure. Keep speculative resale expectations separate from the practical need for a web address. The evidence reviewed here does not justify assuming a profitable resale.
For AI publishers, a clearly explained product and useful content remain concrete work you can control. Our AI tool evaluation checklist offers a similar approach: identify the actual benefit, verify claims, and distinguish promotional numbers from measured outcomes.
The .si domains story is real as a registration and branding story. Its long-term significance remains open. The next useful evidence will be sustained use and verified transactions, rather than ever-larger asking prices.
Sources and review notes
- White House executive order, September 29, 2026
- IANA .si delegation record
- Register.si statistics
- Registry statement on increased registrations
- BDM report with earlier registration figures
- build.si seller page and seed.si seller page
Reviewed September 30, 2026. Registration counters and advertised prices can change. No purchase or resale transaction was performed for this article.