Why .si sustains — but does not overtake .ai

Slovenia's two letters have a floor that .xyz never had, and a ceiling that .ai will never share. Both halves of that sentence matter, and most commentary is only getting one of them.

Since the US executive order of 29 September directed federal agencies to write "super intelligence" and "SI" in place of "artificial intelligence" and "AI", one question has dominated every domain forum: is .si the next .ai?

It is the wrong question, and it produces two wrong answers. The bulls say Slovenia is about to become Anguilla. The bears say this is .xyz with a news cycle attached. We think both are mistaken, and that the distance between them is where the actual investment case lives.

Start with what .ai actually is

Calibration first, because the comparison is being made loosely. Anguilla's .ai registry produced EC$230.5m in 2025 — roughly 47% of the territory's state income, up from under one per cent a few years earlier. It passed one million registrations in January 2026 and stood at 1,277,727 by June. Its base wholesale price is US$140 a year with a two-year minimum term.

That is the bar. Now hold it against the .si rush, where Domain Name Wire's calculation puts the registry's additional September revenue at approximately €300,000.

The semantic claim is weaker than it looks

The value of .ai rests on something .si does not have: the extension is the organic, universal name of the category. "AI" carries seventy years of usage, in every language, used by everyone — and is still what the technology is called by effectively everyone outside the US federal civil service.

Read the order's scope carefully. It binds federal agencies only, covers official non-statutory communications, leaves existing law and contracts untouched, and still borrows the statutory definition of AI. It does not bind a single private company, rename the technology, reach outside the United States, or survive a change of administration.

No frontier lab has renamed itself. No EU regulation uses the term. Terminology mandates have a poor historical record against industry usage, and this one is eight days old.

So why does .si sustain?

Because it is not a manufactured extension. This is the half the bears miss.

.si is a sovereign country-code domain that already carried roughly 186,000 registrations before any of this happened, serving a stable EU member state with real businesses, schools and government on it. That baseline does not evaporate when a news cycle ends. .si will also never acquire .xyz's reputational damage, which was earned through free-registration promotions and sustained phishing abuse, not through an executive order.

Compare the collapse case honestly. .tk peaked at 31.3 million registrations in 2016 — larger than .cn — on a free registration model. After Meta's lawsuit and ICANN's termination of the operator's accreditation, roughly 99% of those domains went dark in a single month in March 2024. Nothing like that can happen to .si, because nothing like that underpins it. There is a country beneath it.

And why does it not overtake?

Because the floor is also the ceiling.

A domain's aftermarket value tracks its buyer pool. For .si, the natural pool is Slovenian businesses — a country of 2.1 million people — plus the thin global set of buyers who want a domain hack. That pool supports a healthy national namespace. It does not support a speculative asset class.

Then there is price, which is the mechanism most people read backwards. At roughly $12 a year, carrying cost is near zero, so nobody is ever forced to sell. No forced sellers means no liquidity, no price discovery, and no floor under quality names. .ai's $140 carry is brutal — and that brutality is precisely what creates its aftermarket, because wrong guesses must be resolved. .si is priced like .xyz, not like .ai, and extensions priced like .xyz behave like .xyz.

There is also a registry-incentive mismatch worth naming. Anguilla's .ai is operated commercially, with every reason to maximise the asset. ARNES is Slovenia's academic and research network — national infrastructure, not a revenue engine. It will not market .si to the world as "the SI extension". Indeed, the registry has publicly cautioned against comparisons with Anguilla's windfall, and its spokesperson declined to attribute the September surge to the executive order alone.

The precedent that settles it

If you want to know what a ccTLD looks like when its two letters genuinely match a global category, look at .tv.

Thirty years of runway. A perfect, universally understood word. Twitch — the 32nd most-visited site on earth, bought by Amazon for a billion dollars — as its anchor tenant. The result today is roughly 784,000 domains, about half a per cent of .com's size, absent from the top-ten ccTLD rankings. Retail pricing fell from $1,000 a year in 1999 to $10–29 today. Tuvalu earns around $10m a year from it — a real annuity, and still second to its fishing licences.

That is the best case for a word match. It produced a durable small annuity and a niche. Not a .com.

Our position

.si sustains. It will not become useless, it will keep its national base, and the rush has given it a permanently higher baseline than it had in August. But it will produce poor speculative returns, and that is a different claim from "worthless".

What would change our view is specific and observable: one well-funded company launching on a .si as its primary brand identity, the way Perplexity launched on .ai. Not a redirect. Not a vanity shortener. A primary identity. That number is currently zero. We will revise the moment it is one.

The second thing we are watching is ARNES. If the registry raises prices or begins marketing internationally, it has decided it owns an asset rather than an accident. Until then, the institution that makes .si safe is the same institution that makes it passive.