forumuddannelse.dk is a .dk domain served by 2 nameservers (justin.ns.cloudflare.com, serena.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.90.238 | 300s | — | AS13335 | — | — | — | — |
| 172.67.162.203 | 300s | — | AS13335 | — | — | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3036::6815:5aee | 300s | — | AS13335 | — | — | — | — |
| 2606:4700:3036::ac43:a2cb | 300s | — | AS13335 | — | — | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.90.238,172.67.162.203 ech=AEX+DQBB7QAgACBc7rhY1/z+KUvvg6fnbeaCNDOydik5ZcsYhoZ5+dkIIAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::6815:5aee,2606:4700:3036::ac43:a2cb |
| www | 104.21.90.238 172.67.162.203 2606:4700:3031::ac43:a2cb 2606:4700:3033::6815:5aee (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network forumuddannelse.dk: 104.21.90.238 172.67.162.203 2606:4700:3031::ac43:a2cb 2606:4700:3033::6815:5aee (AS13335) www.forumuddannelse.dk: 104.21.90.238 172.67.162.203 2606:4700:3031::ac43:a2cb 2606:4700:3033::6815:5aee (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 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2407185044 |
| Primary NS (MNAME) | justin.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-16 02:31:52 | 650ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-24 10:53:21 | 542ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-23 20:03:53 | 596ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-15 18:15:07 | 2107ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-01 09:02:42 | 612ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-29 04:33:00 | 1400ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-25 13:39:11 | 594ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-09 08:47:46 | 8759ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-22 04:47:45 | 8652ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-18 06:36:07 | 2740ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-12 21:09:37 | 16600ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-22 10:27:08 | 881ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-20 17:09:41 | 1101ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-20 11:06:21 | 2015ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-20 08:41:43 shown | 1324ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-17 09:24:39 | 578ms | 2 NS 2 A 0 MX | 🔒 Secure |