chefuddannelse.dk is a .dk domain served by 4 nameservers (ns1.mainloop.net, ns2.mainloop.net, ns3.mainloop.net and 1 more). It was registered on 6 February 2009 (WHOIS) and 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 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.
| www | NXDOMAIN |
| www vs bare domain | Neither resolves chefuddannelse.dk: no address www.chefuddannelse.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 2 CDS, 1 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026100801 |
| Primary NS (MNAME) | ns1.mainloop.net |
| Responsible (RNAME) | hostmaster@mainloop.net |
| Refresh | 3600s |
| Retry | 900s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Name SRS AB |
| Registered | 2009-02-06 |
| Expires | 2027-02-28 (134d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-16 06:20:54 | 5132ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-09 10:43:10 shown | 449ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-08 20:23:29 | 541ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-01 18:37:57 | 470ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-29 18:11:39 | 480ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-24 19:58:23 | 435ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-23 18:40:42 | 516ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-18 00:59:34 | 9380ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-10 06:30:12 | 4564ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-07 17:20:07 | 5351ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-27 16:48:13 | 400ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-20 11:53:15 | 2799ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-15 01:35:54 | 2251ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-06 21:29:54 | 757ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-02 11:00:58 | 732ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-24 03:53:09 | 729ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-16 14:41:09 | 843ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-11 19:55:32 | 774ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-03 19:28:18 | 627ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-25 21:44:01 | 557ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-24 20:18:10 | 943ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-24 12:40:04 | 6258ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-24 06:10:28 | 914ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 08:05:02 | 442ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-20 06:44:16 | 411ms | 4 NS 0 A 0 MX | 🔒 Secure |