issk.dk is a .dk domain served by 5 nameservers (ns1.d-n-s.dk, ns2.d-n-s.dk, ns3.d-n-s.dk and 2 more). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by issk-dk.mail.protection.outlook.com. The zone is of unknown DNSSEC status, publishes a 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.d-n-s.dk | — | — | — |
| ns2.d-n-s.dk | 185.215.92.136 | — | AS209959 Mark Weber Andersen |
| ns3.d-n-s.dk | 185.215.92.137 | — | AS209959 Mark Weber Andersen |
| ns4.d-n-s.dk | — | — | — |
| ns5.d-n-s.dk | 185.215.92.139 | — | AS209959 Mark Weber Andersen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| Policy | Record (_dmarc.issk.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:dmarc@issk.dk; ruf=mailto:dmarc@issk.dk; |
| www CNAME | issk.dk (all on issk.dk) → 52.142.195.141 (AS8075) |
| www vs bare domain | Same network |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | ❓ Unknown |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: failure |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 07:42:40 | 19314ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-07 07:39:53 shown | 21299ms | 5 NS 0 A 1 MX | ❓ Unknown |
| 2026-10-01 04:51:39 | 1058ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-25 09:06:41 | 7285ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 09:51:03 | 5112ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-25 23:38:47 | 12356ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-29 11:13:47 | 16753ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-22 18:29:22 | 18833ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-18 16:07:55 | 24858ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-10 00:16:17 | 10507ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-25 12:47:27 | 2558ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-23 20:14:33 | 899ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 23:24:36 | 4778ms | 5 NS 1 A 1 MX | 🔓 Insecure |