cybermadsen.dk is a .dk domain served by 2 nameservers (eloise.ns.cloudflare.com, milan.ns.cloudflare.com). It was registered on 24 May 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.78.20 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.78.20 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.214.135 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:4e14 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:d687 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.78.20,172.67.214.135 ech=AEX+DQBBmQAgACCSjKlo4k3JzTL5+nKmioEtvVRdH+uMbnxTnDZBMoQdLQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:4e14,2606:4700:3037::ac43:d687 |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (cybermadsen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.cybermadsen.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:70ff888fb01548b39efbb86358e8d17e@dmarc-reports.cloudflare.net; fo=1; sp=reject; adkim=s; aspf=s |
| www | 104.21.78.20 172.67.214.135 2606:4700:3033::6815:4e14 2606:4700:3037::ac43:d687 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network cybermadsen.dk: 104.21.78.20 172.67.214.135 2606:4700:3033::6815:4e14 2606:4700:3037::ac43:d687 (AS13335) www.cybermadsen.dk: 104.21.78.20 172.67.214.135 2606:4700:3033::6815:4e14 2606:4700:3037::ac43:d687 (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| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2408678129 |
| Primary NS (MNAME) | eloise.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 | 2023-05-24 |
| Expires | 2027-05-23 (211d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-05 12:22:03 | 1683ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-14 17:47:39 | 1230ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-11 03:18:37 | 1235ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-08 16:03:47 | 875ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-01 23:03:31 | 941ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-26 01:15:33 | 1289ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-18 20:59:47 | 8000ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-24 22:50:30 | 916ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-16 12:18:21 | 16900ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-04 22:10:53 shown | 1788ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-01 23:18:44 | 1454ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-25 18:23:32 | 1525ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-16 23:24:31 | 377ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-16 23:20:46 | 480ms | 2 NS 2 A 0 MX | 🔒 Secure |