rosborg-as.dk is a .dk domain served by 2 nameservers (ns1.dns.services, ns2.dns.services). It 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 our latest 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 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| 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 |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 20:59:10 shown | 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 | 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 |