lederuddannelsen.dk is a .dk domain served by 3 nameservers (ns.efif.dk, ns2.efif.dk, ns3.efif.dk). It was registered on 5 November 1999 (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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns.efif.dk | 195.254.168.23 | ns.efif.dk | AS51073 Aarhus Business College |
| ns2.efif.dk | 195.254.168.12 | ns2.efif.dk | AS51073 Aarhus Business College |
| ns3.efif.dk | 20.23.170.35 | — | AS8075 Microsoft Corporation |
| TXT Record |
|---|
| Erhvervsakademi \195\133rhus |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves lederuddannelsen.dk: no address www.lederuddannelsen.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 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2014092606 |
| Primary NS (MNAME) | ns.efif.dk |
| Responsible (RNAME) | dns-zc@efif.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1999-11-05 |
| Expires | 2026-12-31 (66d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-26 07:18:20 | 433ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-24 21:01:50 | 373ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-19 09:37:28 | 381ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-16 07:50:22 | 2048ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-14 05:16:52 | 458ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-08 17:15:04 | 1595ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-07 17:09:22 | 474ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-02 16:16:16 | 350ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-29 15:55:48 | 561ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-27 15:36:11 | 1640ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-21 13:10:36 shown | 431ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-19 22:44:35 | 1571ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-14 19:29:13 | 1623ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-07 17:50:11 | 344ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-04 02:28:18 | 317ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-31 02:41:13 | 321ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-26 22:32:08 | 439ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-25 01:47:10 | 11841ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-18 20:54:29 | 3556ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-13 19:56:55 | 9532ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-11 00:01:40 | 4543ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-06 20:32:33 | 4403ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-26 20:27:24 | 2836ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-24 19:21:07 | 4620ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-21 14:08:57 | 2406ms | 3 NS 0 A 0 MX | 🔒 Secure |