Every first name, two-letter and three-letter string, US state, country and chemical element, checked in all three extensions: registry dates, what is on the site, and the asking price from the domain's own landing page first, marketplaces second.
Every .si in our data with a buy-now price on its own landing page, or that is free to register, gets a score out of 100:
Each day a small date-based nudge reshuffles the strongest names, so the line-up changes daily. Picks rotate through the name sets so no one set fills the list, and every fifth pick is a name you can register today. First names show their US popularity rank. Implausible prices are left out. Prices are asks, not sales: confirm on the landing page before you buy.
Every domain registered in each extension, not just the names researched here. Each chart has its own scale: .com is counted in hundreds of millions, .ai and .si in hundreds of thousands. Hover a point for the date and source.
Each name set has its own page with registration trends, pricing, who holds the names and, for states, countries and elements, the animated registration maps.
Pick a set to see who owns its names in .si, .ai and .com, when they were registered and what they ask.
What a visitor sees on each domain today. Site scans cover first names and two-letter names in all three extensions. For three-letter names, states and countries the scan recorded sale evidence only, so those show as for sale, no sale sign, or no listing found.
Registry creation dates as they stand today. A dropped and re-registered name shows its newest date, so older years are undercounted. .ai dates of 2017-12-16 mean "on or before" the start of the current .ai registry system.
Every name in this set lighting up in the order it was registered, with the asking price tagged as each one appears. Each animation ends on a "For sale now" map shaded by price.
All 118 chemical elements lighting up in the order their domain was registered. Each square shows the registration year and, if the name is for sale, its asking price. The animation ends on a "For sale now" table shaded by price.
Prices are taken from the best evidence available: the domain's own landing page first, then Sedo, Afternic and other venues. When venues disagree, the landing page wins. This section shows how often that happens.
Registrars behind the domains currently listed for sale. A few investor-friendly registrars hold most of the speculative .si stock.
For names listed for sale in one extension, what the same name is doing in the other two. A developed .com usually means an established brand already owns the name elsewhere.
Median asking price and share listed for sale in every name set side by side.
| Domain | Name rank | Status | Price | vs similar | Registered | Other extensions |
|---|
The assistant searches the same data as the finder and explains its picks: price against similar names, which evidence the price comes from, and who already uses the name in other extensions.
Runs on your own Claude account. Results come from the scan data on this page, so recheck availability and price on the domain itself before buying.
Names that may become free to register: already in the registry’s delete cycle, past their expiry date, or expiring in the coming weeks. Most expiring names get renewed, so treat anything not yet in pending delete as a watch list, not a sure thing. How the .si, .com and .ai drop cycles work, and where to backorder ↓
An unrenewed .si name is released about 30 days after it expires: it sits in a 30-day quarantine, then goes to whoever registers it first. That is less than half the wait for .com or .ai, which run through grace, redemption and a locked pending-delete phase.
.com grace is shown at its 45-day maximum (registrars choose 0–45). The .ai stages are typical values and vary by source. Most .ai names are sold in a Namecheap registry auction before they reach the drop.
pending delete.redemption period.| Service | Cost | How it works | Track record |
|---|---|---|---|
| Backorders.Domains recommended | €50 flat | Sole backorder wins at €50; several orders → 7-day proxy auction | Caught fanta.si and 8 of 12 top .si drops in mid-2026 (NamePros) |
| Regery backup | Not published | Drop-catches .si, checking every 30 minutes | Fast .si registrations; one reported pending-delete glitch |
| DomainExchange.si | Not published | Reported to take .si backorders; mainly a .si marketplace with escrow | Unproven |
| BB Online | Free watch; ~$144 if caught | Registers for the first person who asked; no auction | No public .si record |
| notrenewing.com | ~$99 a name (2025) | Buy from owners who won't renew, before the drop | Small listings |
.ai is different: expiring .ai names go to the registry’s daily auction on Namecheap Market before they can drop, so bid there rather than backordering. Not for .si: Dynadot backorders, DropCatch, NameJet and NeoServ. Tips: place the backorder while the name is in quarantine, and use two services for a name you really want. Only one registration can win, so a second order is a backup, not a bid against yourself. For .com, use DropCatch, SnapNames or NameJet.
| RDAP status | What it means for .si |
|---|---|
pending delete | Expired and in quarantine. Free about 30 days after the expiry date |
pending delete + redemption period | Deleted early by the registrar. Free 30 days after the status changed |
inactive | No name servers. Still registered, not dropping |
client delete prohibited | Registrar lock against deletion. The expiry date still applies |
Past expiry, still active | Usually renewed and RDAP not refreshed yet. Re-check before you backorder |
Sources: Register.si general terms (5.3–6.2) · Register.si statuses · OpusDNS .si · OpusDNS .ai · Openprovider · NEOSERV · OSIR (.com) · DomainDetails · Domain Name Wire (.ai auctions) · NamePros: catching .si drops
Live .si websites built for an international audience rather than for Slovenia. Every registered .si in the research (first names, two- and three-letter names, US states, countries and elements) was visited, and each site’s language, market and purpose recorded.
A page-by-page reading of the NamePros thread "Showcase your .SI domains – Super Intelligence": every page, every post, every domain mentioned and every sale reported, from the first post in June 2024 to today. Credit for the spark goes to Lox, who first shared that Microsoft owns copilot.si on June 23, 2024.
Read the thread on NameProsShowcase your .SI domains – Super Intelligencehttps://www.namepros.com/threads/showcase-your-si-domains-super-intelligence.1328785/Open thread ↗The thread falls into five stretches, each set off by an outside event. The bar under each era shows its share of the thread's pages.
Each forum page holds about 20 posts, so pages per month is a direct measure of how much the community was talking.
Euro prices are converted at €1 = $1.16 for sorting and totals; the original currency is shown. "Reported" means a member relayed the figure without proof. Benchmark rows are .ai and .com sales the thread cited for comparison. A repeat report is the same sale posted again; it is left out of counts and totals.
Much of the .si conversation happens on X. These five accounts are among the loudest voices. Each button opens their latest .si posts on X, newest first.
Bought betty.si for $17,500 in October 2026 (he owns betty.ai) and dozens more .si names; DomainGang counted 63 .si domains and $45,987 spent by Oct 8. Still calls .com king but says quality .ai and .si make sense.
In June 2026 he checked the WHOIS of ten recent .si sales and found the same buyer (PremiumDoms.io) behind them, raising questions about coordinated buying. The NamePros thread argued about it for pages.
Started compiling every ".si (Superintelligence)" domain in July 2024, weeks after the NamePros thread opened. Claims 95,000+ .si registered since then and predicted resales would reach five figures.
Posted "The .si hype might come true after all!" in May 2026, then reported $30,000 of .si sales at Sedo in one day. Later said price hikes by sellers were slowing sales.
Sold rebellion.si for $28,700 on Oct 15, 2026. Bought name.si in May 2026, posts registry statistics such as how many two-letter .si were registered each year, and holds a sizeable share of three-digit .si names.
Sold Rebellion.si for $28,700 #SI .si domains
— LAMBO (@lambo_com) · 2026-10-15 · View on X · NamePros post #4,783
Slovenia says 44,000 domain names with the .si suffix were registered in September, up from ~2,000 in August, as Trump renamed AI "super intelligence" (@cressup / BBC)
— Techmeme (@Techmeme) 2026-10-02
After President Trump proposed renaming AI to "super intelligence" (SI), registrations of Slovenian .si domains overtook .ai. Netcraft's latest research explores the surge, domain speculation, and the cybersecurity implications.
— Netcraft (@Netcraft) 2026-09-24
A great .si domain sale at @Sedo :) The .si hype might come true after all!
— Kalin Karakehayov (@Karakehayov) 2026-05-23
My Superintelligence .si domain names post is now ranked #1 @Google search only after two days. #ai #superintelligence #DNS #Domains
— Jason (@sidomains) 2024-07-19
List of all .si (Superintelligence) domain names compiled. For all inquiries or to list your .si ccTLD email sales@sldoptions.com #DNS #Domain #AI #Domains
— Jason (@sidomains) 2024-07-16
Posts are embedded from X where your browser allows it; otherwise the text is shown with a link to the original post. Summaries come from the NamePros thread and DomainGang (Oct 8, 2026).
Where each number on this site comes from, and what the labels mean.