DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
whois.si runs on AS2107.
- Hosting network
- AS2107AS2107
- Managed DNS
- Self-hosted / other
- None
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 962 other sites on AS2107. Stable here since we started watching (Oct 29, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to whois.si.
DNS Records for whois.si
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| whois.si | SOA | 3600 | dns3.arnes.si hostmaster.arnes.si 1786943967 28800 7200 172800 3600 | |
| whois.si | TXT | 0 | HARICA-l8UzDAlHAbyXfow9Riw | |
| whois.si | TXT | 0 | HARICA-zIgosBB1Emp2FRRTlyF | |
| whois.si | NS | 0 | dns3.arnes.si | |
| whois.si | NS | 0 | dns2.arnes.si | |
| whois.si | NS | 0 | dns1.arnes.si | |
| whois.si | A | 0 | 153.5.81.133 | |
| www.whois.si | A | 0 | 153.5.81.133 | |
| www.whois.si | TXT | 0 | HARICA-zIgosBB1Emp2FRRTlyF | |
| www.whois.si | TXT | 0 | HARICA-l8UzDAlHAbyXfow9Riw | |
| www.whois.si | SOA | 3600 | dns3.arnes.si hostmaster.arnes.si 1786943967 28800 7200 172800 3600 | |
| www.whois.si | NS | 0 | dns3.arnes.si | |
| www.whois.si | NS | 0 | dns1.arnes.si | |
| www.whois.si | NS | 0 | dns2.arnes.si | |
| www.whois.si | CNAME | 0 | whois.si |
Get alerted the moment whois.si's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch whois.si continuously, notifying you the moment anything moves across all three signals:

Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
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About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain