Free .si domain search
.si domain checker
Find a name worth building on. Check the registry, compare prices, and make it yours.
| Provider | First year | Renewal / year | 2-year cost | Visit provider |
|---|---|---|---|---|
| First year$12.05 | Renewal / year$13.51 | 2-year cost$25.56 | Visit provider | |
| First year$11.99 | Renewal / year$16.99 | 2-year cost$28.98 | Visit provider | |
OVHcloudRegistry-listed | First year$11.49 | Renewal / year$15.89 | 2-year cost$27.38 | Visit provider |
INWXRegistry-listed | First year$12.75 | Renewal / yearView price | 2-year costConfirm on provider site | Visit provider |
Price snapshot verified:
USDDynadot and Hostinger are featured first and second, with referral links. Other providers follow your selected price order. We may receive referral rewards. Final prices are confirmed at checkout. Standard USD prices, before tax. Promotions, exchange rates and premium names can change your checkout price. These are reviewed snapshots, not live quotes.
Published by Register.si. Every number has a source and a timestamp.
277,437
Registered .si domains
10,898
New in the last 24 hours
46,066
New in the last month
93
Listed registrars
Last verified snapshot:
What is a .si domain?
.si is the country-code top-level domain for Slovenia. It is managed by Register.si, part of ARNES, and was delegated in 1992.
A .si domain gives your project a short, distinctive address. Registration is open to people and organizations worldwide. You can use it for a Slovenian business, a personal site, or a technology brand. The country-code meaning remains Slovenia, even when a brand uses SI as shorthand for super intelligence.
From an idea to your own .si domain.
Find your name
Start with a name people can say, spell, and remember. Our .si domain checker queries the official registry, so you can tell a recorded registration from a name that still needs final registrar confirmation.
Know the full cost
A low introductory price is only part of the story. Compare the first-year .si domain price, the recurring renewal fee, taxes, and the cost of keeping the name for two years. Open the source if a price needs confirmation.
Make it yours
Visit your chosen provider, search the exact .si domain again, and finish registration in your own account. Save the name here first, then enable renewal reminders, protect your account, and connect your DNS when you are ready.
A familiar domain. A new conversation.
Read the evidenceInterest in .si domain names has grown alongside the use of SI for super intelligence. A September 29, 2026 White House order directed the U.S. executive branch to adopt that terminology. This is a branding context, not a change to the official .si domain delegation. Choose a name that works for your product even if today’s terminology changes.
The White House, 2026-09-29The essentials, without the guesswork.
Know what makes a valid .si domain before you search.
2 to 63 characters
One-letter names cannot be registered. For internationalized names, the 63-character limit applies to the encoded ACE form.
Open worldwide
A .si domain is available to individuals and organizations outside Slovenia. You register through a provider, not directly through this website.
International characters supported
The registry supports a published set of Latin characters, including č, š, and ž. Not every language, symbol, or emoji is allowed.
DNSSEC supported
The .si zone supports signed DNS delegation. Ask your provider about enabling it, and coordinate DS changes with your DNS operator.
.si or .ai? Choose for your audience.
A .si domain can be a concise name for a new product. An .ai domain has an established association with artificial intelligence. Both are country-code extensions. Compare the exact name, the total ownership cost, and what the ending communicates to your customers. Neither extension guarantees rankings, investor interest, or a stronger brand.
Compare .si and .aiWhat does a .si domain really cost?
The provider decides the retail .si domain price. A first-year promotion may be attractive, but a lower renewal amount can matter more if you intend to keep the name. Compare the same registration term and currency, and keep taxes separate until checkout. Our cost table shows one registration year plus one renewal year wherever both figures were independently verified. It does not include optional hosting, email, premium-name charges, or a future discount. If a quote is missing, open the provider’s official page rather than relying on an estimate.
Check availability with a clear source.
This .si domain checker uses Register.si RDAP, the official registration-data service. A recorded .si domain and a failed connection are different outcomes, and the interface keeps them separate. A no-record response is a useful starting point for registration, but it is not a reservation. Your .si domain can be registered by someone else between a search and checkout, or blocked by a registry rule. Recheck your chosen name at the provider before paying. For recorded names, our .si domain lookup can display technical fields such as nameservers and registration events without exposing private holder details.
Choose a name you can keep.
An effective .si domain fits the project behind it. Say the full address aloud and ask someone to type it without seeing it. Check relevant trademarks and unwanted meanings before investing in a brand. The short .si domain ending can work for a Slovenian service, a personal project, or a technology company, but the surrounding name still needs to communicate something useful. Browse our two-letter, three-letter, one-word and agent naming collections for inspiration. Their combination counts are not available inventory. Every .si domain status comes from an actual lookup; save a shortlist and compare the final candidates on their merits.
Good questions. Clear answers.
Can anyone register a .si domain?+
Yes. A .si domain can be registered by individuals and organizations worldwide, through a registrar. You do not need Slovenian residency. Your chosen provider still needs accurate registrant information and payment.
Does “no registration found” mean I can buy the name?+
It means the .si domain was not found in the official RDAP lookup. Reserved names, policy restrictions, and another registration between your search and checkout can still prevent purchase. Your registrar makes the final availability check.
How much does a .si domain cost?+
Providers set their own retail prices. Compare the current first-year quote and the .si domain renewal price in our table, then verify the exact name at checkout. USD price snapshots exclude taxes and may change with promotions or exchange rates.
Can I register a one-letter .si domain?+
No. Register.si requires a minimum of two characters. This also applies to the readable form of internationalized names, so converting a single character to a longer ACE string does not make it eligible.
Is .si an official super intelligence extension?+
The official .si domain remains Slovenia’s country-code top-level domain. Super intelligence is an emerging interpretation of the letters SI for branding. It does not change the registry, country delegation, or domain rules.
Can I use Cloudflare with a .si domain?+
Cloudflare DNS and Cloudflare Registrar are different services. Our reviewed Cloudflare TLD policy list did not include .si. You can register with a .si provider and use Cloudflare DNS, subject to its setup and account requirements. Recheck its supported TLD list for changes.
A little research goes a long way.
Practical .si domain guides, backed by primary sources.
Your next idea needs a name.
Check your .si domain. See the cost. Take the next step.
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