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Domain .si supports latin letters and does not support international symbols (cyrillic).
Minimum number of symbols is 3, maximum number is 63.
For more information, please refer to the .SI Domain Policy.
Buy a .SI Domain Name.
Check domain in the .si extension
Build a trusted presence in Slovenia—or a forward-looking Super Intelligence brand—with a short, memorable .SI domain.
Buy Your .si Domain
The cost of a .si domain varies based on your account plan and the number of cashback coins available for additional discounts. Join our referral program to boost your cashback. Additionally, you can transfer your domain to us to receive the best prices on the market.
To view prices including your personal discounts, please sign in.
Why choose a .SI domain?
.SI is the country-code top-level domain (ccTLD) for Slovenia, operated by ARNES. Registration is open to businesses, organizations, and individuals worldwide, making .SI a strong choice for brands serving Slovenian customers or protecting their name in the Slovenian market.
- Reach Slovenia: Signal a clear connection to Slovenian customers, services, culture, or content.
- Build a local brand: Use a concise country-specific address for e-commerce, tourism, technology, media, and professional services.
- Create an AI identity: “SI” can also stand for Super Intelligence—a memorable alternative for AI labs, agent platforms, research projects, and advanced software.
- Protect your name: Secure your company, product, or trademark under .SI before someone else does.
Who should register a .SI domain?
.SI works well for Slovenian companies, international businesses entering Slovenia, local services, travel brands, personal sites, and technology teams looking for a short domain connected to “Super Intelligence.”
.SI registration requirements
.SI domains are registered through an authorized registrar. Registrants must provide accurate contact information and comply with the official .SI registry terms. Search for an available name above and manage registration, DNS, and renewal from your NicNames account.
