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To connect a .si domain to a website, add the exact DNS records your website host provides at the domain’s authoritative DNS provider—or change nameservers if the new provider requires it. The registrar, DNS host, and website host may be three different services. If you change nameservers, move the domain’s email and other DNS records too.
Know which provider controls each part
The registrar manages the domain registration and its delegation to nameservers. The DNS host publishes the records in the domain’s DNS zone. The website host provides the record values that direct visitors to the site. One company can provide more than one of these services, but do not assume the registrar is also the DNS host.
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Find the .si domain’s current nameservers in the registrar account or domain lookup tools, then identify which provider operates them. Edit DNS records wherever those authoritative nameservers point. Changing records in a registrar portal will have no effect if another provider hosts the active DNS zone.
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Choose whether to keep or change nameservers
| Approach | What changes | Best fit |
|---|---|---|
| Keep current nameservers | Add or update the website host’s specified records in the existing DNS zone. | When you want to point the website hostnames to a site while leaving DNS and other services in place. |
| Change nameservers | Replace the domain’s current nameserver delegation with the new provider’s nameservers, moving control of the entire DNS zone. | When the new DNS or website provider requires the change or you intend to move the whole zone. |
Option 1: Keep your current nameservers and add website records
- Open the DNS zone at the provider operating the domain’s current authoritative nameservers.
- Open your website host’s custom-domain or domain-connection instructions and copy the exact records it requires. Depending on the host, these may include an A or AAAA record for the apex domain (the bare domain, such as
example.si), a CNAME forwww, or a provider-specific combination. - Add or update those records in the DNS zone. Use the values supplied for your specific hosting account; there is no universal IP address or target that applies to every website. Avoid conflicting existing records for the same hostname.
- Save the changes, then use the host’s custom-domain status or verification tool if available. Check both the apex domain and
www; they may need separate records, and redirecting one to the other may require a setting at the host. - After the host recognizes the domain, enable HTTPS through the host’s process.
Option 2: Change nameservers and move the whole DNS zone
Use this route only when your destination provider calls for its nameservers or when you are deliberately moving DNS management. A nameserver change is not limited to website traffic: it switches which provider controls answers for the whole domain.
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- At the new DNS provider, create the zone and copy all records the domain still needs. Include email MX and TXT records, verification records, and records for subdomains or other services.
- Obtain every nameserver hostname the new provider requires. Do not substitute a website IP address for nameservers or assume one nameserver is enough.
- In the registrar’s domain settings, replace the current nameservers with the complete set supplied by the new provider, then save.
- Confirm that the new DNS provider serves the records you migrated. Use the website host’s custom-domain check, confirm both the apex and
wwwbehavior, and enable HTTPS once the host recognizes the domain.
If email or another service stops working after a nameserver switch, check that its records exist at the newly authoritative DNS provider. Restoring only the website records will not restore missing mail or verification records.
Check that the .si delegation is valid
The .si Registry’s DNS check links to Zonemaster and checks the domain’s nameservers as well as the parent-zone nameservers. Register.si’s current requirements include at least two NS records; authoritative nameservers must answer over UDP and TCP port 53, serve consistent authoritative data, and not offer open recursive service. The registry warns that ERROR or CRITICAL results mean the domain will not be delegated to DNS.
These checks concern nameserver delegation, not whether the website’s A, AAAA, or CNAME record points to the correct hosting destination. A clean delegation result therefore does not prove that the site record or HTTPS setup is right.
After a nameserver change, Register.si checks for pre-delegation requirements every 10 minutes during the first eight hours, hourly from 8 to 24 hours, and daily thereafter; adding or deleting a nameserver resets that schedule. The registry identifies March 15, 2025 as the start of hourly .si zone updates. That is the parent zone’s publication cadence, not a guarantee that every resolver or browser will see a change within an hour. DNS TTL values and resolver caches can continue to show older answers temporarily.
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Provider-specific help for .si domains
IANA identifies the Academic and Research Network of Slovenia (ARNES) as the manager of the .si country-code top-level domain. The registry says activation occurs when nameserver records are submitted to its activation systems.
ARNES offers DNS hosting for members and domain redirection to static or dynamic websites hosted with ARNES. It directs users needing a domain server or record changes to [email protected]. Those instructions apply to eligible ARNES organizations, not every .si holder. Provider controls also vary: Telekom Slovenije’s registrar instructions, for example, direct customers to edit DNS server settings in its domain portal and notify its DNS support address.
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