Check .SI domain availability, register a new .SI domain, search multiple names in bulk, or transfer your existing .SI domains to NiceNIC. Built for Slovenian businesses, local services, tourism operators, exporters, regional brands, community projects, and organizations serving customers in Slovenia.
Managing Slovenian brands, regional services, or customer portfolios? Compare NiceNIC account levels for bulk registration and reseller pricing.
NiceNIC supports .SI registration, transfer, DNS management, bulk searches, portfolio organization, and account support for Slovenia-focused domain projects.
Add funds and pay for domain services using supported crypto options such as USDT, BTC, ETH, and LTC. Automated crypto deposit recording helps account balances update quickly after successful confirmation, with no extra NiceNIC processing fee for automated deposits.
NiceNIC provides real human support, not only scripted replies. Our team can review your domain needs, explain practical options, and give account-level, transfer, bulk registration, and reseller suggestions to help your domain business grow.
NiceNIC does not take arbitrary action against domains. Abuse reports are reviewed based on available evidence, policies, and registry requirements, with domain owners guided to review, fix, or explain reported issues where appropriate.
Manage .SI together with 2,500+ domain extensions from one NiceNIC account, including country-code, generic, and new domain extensions. This helps businesses, investors, and resellers build global domain coverage more efficiently.
NiceNIC supports 47+ website languages, creating a multilingual registrar experience for international users and teams. This makes domain registration, renewal, transfer, account management, and support easier across different markets.
For hosting providers, agencies, platforms, and domain resellers, NiceNIC supports reseller API access for domain registration, renewal, transfer, DNS, account-level pricing, and custom nameserver services.
It is a practical choice for Slovenian companies, tourism, local services, public-interest projects, exporters, and international organizations building a recognizable presence in Slovenia.
Current public DomainTools count snapshot.
Approximate share of the 146.3M ccTLD market.
Register.si states that a .SI domain name must be between 2 and 63 characters.
This chart places .SI within the wider domain market while keeping its small segment visible for customer education.
The extension gives visitors a direct national and local-market signal.
The Academic and Research Network of Slovenia operates the national .SI registry.
It fits Slovenian businesses, tourism, services, communities, and international brands entering the market.
The registry requires complete, current contact details and a valid holder email address.
Selected Central and Southeast European ccTLD snapshots provide a customer-friendly view of the current .SI market position.
Selected public .SI sales show rising aftermarket interest in short, AI-related, and brandable names under Slovenia’s country-code extension.
A local company, tourism site, exporter, and brand-protection portfolio each need a domain plan that matches how customers will use the name.
Use a national address for company information, customer service, products, and business email.
Create a recognizable site for accommodation, destinations, restaurants, transport, or regional activities.
Build a Slovenia-specific page for local language, pricing, distributors, and support.
Manage customer names, transfers, defensive registrations, and regional domain collections.
If you already own .SI domains elsewhere, transfer decisions should not be based only on one renewal invoice. Check transfer eligibility, ownership access, billing reliability, support response time, API needs, and long-term domain management.
Paste multiple .SI names, remove duplicates, review the count, and continue to bulk registration. This is useful for domain investors, brand teams, agencies, hosting providers, and resellers.
Enter one name per line, with or without .SI. The tool removes duplicates and prepares a clean list for bulk registration.
If your business sells hosting, websites, SaaS, agency services, or brand protection packages, NiceNIC reseller APIs can support domain registration, renewal, transfer, DNS, and account management.
# NiceNIC API v2 endpoint
# Applies to supported domain extensions, including .com, .net, .org, ccTLDs, and new gTLDs
https://api.nicenic.net/v2/
# Required headers
Authorization: username:api_secret
Content-Type: application/json
# Check domain availability across multiple extensions
curl "https://api.nicenic.net/v2/?category=domain&action=check&domains=example.com,example.net,mybrand.org" \
-H "Authorization: username:api_secret" \
-H "Content-Type: application/json"
# Get registration / renewal / transfer pricing for any supported extension
curl "https://api.nicenic.net/v2/?category=domain&action=get_price&domain=example.com&type=register&year=1" \
-H "Authorization: username:api_secret" \
-H "Content-Type: application/json"
# Change the domain value to query another TLD:
# example.com, example.net, example.org, example.ai, example.co
# Standard response format
{
"code": 0,
"msg": "success",
"data": {}
}
Practical answers about the Slovenian registry, name rules, holder data, WHOIS, AuthInfo transfers, DNS, disputes, and local-market use.
The Academic and Research Network of Slovenia, known as ARNES, operates Register.si and manages the .SI registry.
Slovenian businesses, tourism operators, local services, exporters, communities, and international brands serving Slovenia can use .SI. Check availability in the registration section.
Register.si states that the name must contain between 2 and 63 characters and must use valid characters.
The registry uses the holder email as an official communication channel. The holder should have exclusive access and keep all contact data accurate and current.
Set or request the domain’s AuthInfo code, then provide it to the gaining registrar. Changing registrar does not change the remaining registration period. Use the NiceNIC domain transfer service.
Yes. A registrar processes the change after the current and new holders confirm the transfer. The registration period remains unchanged.
The holder is responsible for choosing a lawful name. Register.si provides an alternative dispute-resolution procedure, and disputed domains may be blocked from transfer.
Yes. Bulk search can help compare Slovenian-language names, locations, product terms, abbreviations, and defensive variations. Use the bulk search section.
Yes, provided the DNS configuration meets registry requirements. Prepare the authoritative nameserver details before changing delegation.
Register a new .SI, transfer an existing domain, or upgrade your account level for bulk registration and reseller API use.
