.SI is the country-code top-level domain (ccTLD) for Slovenia, operated by ARNES (Academic and Research Network of Slovenia) via
register.si. It is the premier domain extension for businesses, organizations, and individuals targeting audiences in Slovenia and the European Union.Who Can Register a .SI Domain?
Anyone worldwide—individuals or corporate entities—can register a .SI domain directly through Rebel.
- No Local Presence Required: You do not need a residence, local address, or registered business in Slovenia.
- No Local Activity Required: There are no legal or commercial usage restrictions imposed on the domain.
Important: DNS Pre-Delegation Requirement
Before a .SI domain registration or transfer request can complete, the .SI registry automatically conducts a pre-delegation DNS check to ensure proper configuration.
Requirements for Nameservers:
- Minimum 2 Nameservers: You must provide at least two (2) authoritative nameservers.
- Pre-Configuration Required: If you choose to use custom third-party nameservers, they must already be configured to return an authoritative answer for your domain prior to submitting your order.
- Rebel Parking Servers (Easiest Option): If you are registering the domain before setting up hosting, simply select Rebel’s default DNS (
dns.rebel.com/dns2.rebel.comordns.rebel.ca/dns2.rebel.ca). Our servers are pre-configured to pass the registry check automatically.
Tip: If using custom DNS, you can test your nameservers beforehand using the registry's official tool: register.si DNS Check.
Key Features & Domain Management
Registration Terms & Character Rules
- Registration Period: Available for terms from 1 to 5 years.
- Allowed Characters: Standard alphanumeric characters (
a-z,0-9) and hyphens (-). Hyphens cannot be placed at the beginning or end of the domain name.
- Domain Length: Minimum 2 characters, maximum 63 characters.
- IDN Support: Yes (Internationalized Domain Names supported).
Domain Transfers to Rebel
- Transfer Authorization Code (EPP Key): Required from your current registrar to initiate a transfer.
- Transfer Completion: Transfers complete in real-time once the valid code is entered.
- Registration Term: Your existing expiration date transfers over seamlessly.
Technical Specifications
| Parameter | Specification |
| Registry Operator |
ARNES (register.si)
|
| Registry WHOIS Server | whois.register.si |
| DNSSEC Support | Supported |
| Premium Domains | Standard pricing applies (no premium tiers) |
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