laereruddannelse.dk is a .dk domain served by 2 nameservers (ns3.supportcenter.dk, ns4.supportcenter.dk). It was registered on 24 December 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|
| ns3.supportcenter.dk | 87.54.32.150 | — | AS3292 TDC Holding A/S |
| ns4.supportcenter.dk | 2.106.7.200 | ns4.supportcenter.dk | AS3292 TDC Holding A/S |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (laereruddannelse.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.laereruddannelse.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject;rua=mailto:dmarc@via.dk; ruf=mailto:dmarc@via.dk |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves laereruddannelse.dk: no address www.laereruddannelse.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 671 |
| Primary NS (MNAME) | ns3.supportcenter.dk |
| Responsible (RNAME) | hostmaster@supportcenter.dk |
| Refresh | 900s |
| Retry | 600s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2004-12-24 |
| Expires | 2026-12-31 (69d) |
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).
Showing 100 of 116.
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-21 15:37:13 | 3036ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-20 02:12:41 | 338ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-18 00:17:41 | 2460ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-16 23:53:11 | 2872ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-13 20:55:01 | 438ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-12 17:39:48 | 3840ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-08 09:47:04 | 2513ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-04 21:23:00 | 265ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-01 21:14:22 | 1190ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-30 21:10:54 | 429ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-26 14:42:23 | 454ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-25 14:32:35 | 426ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-23 14:01:58 | 2810ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-18 03:25:18 | 460ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-16 19:44:36 | 456ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-12 07:49:30 | 480ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-03 22:08:06 | 359ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-31 15:25:55 | 318ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-28 16:47:14 | 353ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-23 20:13:01 | 1421ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-18 18:41:38 | 1216ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-14 19:55:25 | 447ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-13 06:56:09 | 955ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-06 09:39:09 | 754ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-31 01:44:10 | 65535ms | 2 NS 0 A 0 MX | ❓ Unknown |