sirona.dk is a .dk domain served by 2 nameservers (ns05.gcd-dns.com, ns06.gcd-dns.com). It was registered on 3 May 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx00.udag.de, mx01.udag.de. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | mx00.udag.de | 62.146.106.39 | mx00.udag.de | AS15598 NorthC Deutschland GmbH |
| 20 | 600s | mx01.udag.de | 62.146.106.40 | mx01.udag.de | AS15598 NorthC Deutschland GmbH |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves sirona.dk: no address www.sirona.dk: no address |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2024011100 |
| Primary NS (MNAME) | ns05.gcd-dns.com |
| Responsible (RNAME) | dns@jomax.net |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ASCIO TECHNOLOGIES, CORP. DANMARK - FILIAL AF ASCIO TECHNOLOGIES, CORP. CANADA |
| Registered | 2006-05-03 |
| Expires | 2027-05-31 (222d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 05:25:19 | 876ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-09-26 23:23:11 | 3050ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-08-24 14:27:47 | 17019ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-20 03:18:54 shown | 3084ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-17 19:34:29 | 840ms | 2 NS 0 A 2 MX | 🔓 Insecure |