rosborg-as.dk is a .dk domain served by 2 nameservers (ns1.dns.services, ns2.dns.services). It was registered on 21 November 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. The zone is DNSSEC-signed and validates, 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.
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | remote.eurostar.dk |
| TXT Record |
|---|
| v=spf1 mx a ip4:80.208.2.18/32 a:mailport01.follow-up.se a:mailport02.follow-up.se a:mailport03.follow-up.se a:mailport04.follow-up.se include:_spf.centerasecurity.dk -all |
| Policy | Record (rosborg-as.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a ip4:80.208.2.18/32 a:mailport01.follow-up.se a:mailport02.follow-up.se a:mailport03.follow-up.se a:mailport04.follow-up.se include:_spf.centerasecurity.dk -all |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves rosborg-as.dk: no address www.rosborg-as.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 7/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2022030931 |
| Primary NS (MNAME) | ns1.dns.services |
| Responsible (RNAME) | post@dns.services |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 7200s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1996-11-21 |
| Expires | 2026-12-31 (70d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| eurostar.dk | Punktum dk A/S (direct) |
| gloriamundi.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 20:59:10 | 773ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-30 00:44:36 | 455ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-08-28 10:48:27 | 868ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-07-27 16:22:37 | 5116ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-27 16:58:49 shown | 3595ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-24 13:04:31 | 915ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 18:23:07 | 5000ms | 2 NS 0 A 3 MX | 🔒 Secure |