datalærer.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 149.210.164.85 is hosted by Signet B.V. (AS20857) in The Netherlands. Mail is handled by .. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 149.210.164.85 | 43200s | martindybdal.dk | AS20857 | Signet B.V. | 149.210.128.0/17 | 🇳🇱 The Netherlands | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| www | 46.30.211.38 (AS51468) (address records, no CNAME) |
| www vs bare domain | Different networks (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | ncache nxdomain overridden by dig AD |
| Field | Value |
|---|---|
| Serial | 2026081201 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 20:42:26 | 656ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 15:20:37 | 369ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-11 17:42:21 | 1594ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 11:42:43 | 591ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-12 21:30:26 shown | 2562ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-08 20:12:51 | 4660ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-18 22:52:04 | 562ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-15 12:46:42 | 529ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 14:36:27 | 1225ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-27 08:15:55 | 642ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 10:07:50 | 7134ms | 2 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-21 09:13:23 | 318ms | 0 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-19 08:50:19 | 572ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 01:06:26 | 507ms | 2 NS 1 A 0 MX | 🔒 Secure |