cetacyberdefense.dk is a .dk domain served by 2 nameservers (curt.ns.cloudflare.com, hera.ns.cloudflare.com). It was registered on 1 October 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by cetacyberdefense-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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 | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| 🔶 Autoconfig | cetacyberdefense.dk |
| TXT Record |
|---|
| MS=ms81983284 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (cetacyberdefense.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.cetacyberdefense.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| www | 104.21.56.115 172.67.184.225 2606:4700:3033::ac43:b8e1 2606:4700:3034::6815:3873 (AS13335) (address records, no CNAME) |
| www vs bare domain | Only www resolves cetacyberdefense.dk: no address (all like this)www.cetacyberdefense.dk: 104.21.56.115 172.67.184.225 2606:4700:3033::ac43:b8e1 2606:4700:3034::6815:3873 (AS13335) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.cetacyberdefense.dk | cetacyberdefense.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2417504096 |
| Primary NS (MNAME) | curt.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2019-10-01 |
| Expires | 2032-10-31 (2205d) |
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 |
|---|---|
| centera.dk | Punktum dk A/S (direct) |
| centerasecurity.dk | Punktum dk A/S (direct) |
| cetacyberdefence.dk | Punktum dk A/S (direct) |
| spf-protect.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 11:37:57 shown | 2062ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-03 20:46:26 | 874ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-30 02:16:08 | 1303ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-28 01:46:11 | 1492ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-25 01:22:24 | 1272ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-22 05:07:17 | 1749ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-15 03:32:34 | 1458ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-08 12:49:06 | 1880ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-01 09:54:00 | 1258ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-28 02:56:20 | 780ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-06 12:33:02 | 2049ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-19 15:58:19 | 1371ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-11 12:09:40 | 1425ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-05 01:24:13 | 1380ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-24 17:40:23 | 5292ms | 2 NS 0 A 1 MX | ⚠️ Bogus |
| 2026-06-23 06:38:18 | 1160ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 17:04:50 | 1446ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-16 20:11:02 | 1993ms | 2 NS 0 A 1 MX | 🔒 Secure |