learnonline.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 1 April 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.22.74.133 is hosted by Sinal A/S (AS39642) in Denmark. Mail is handled by .. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.22.74.133 | 43200s | — | AS39642 | Sinal A/S | 185.22.72.0/22 | 🇩🇰 Denmark | Viborg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (learnonline.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.learnonline.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www | 185.22.74.133 (AS39642) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| 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 | fully validated |
| Field | Value |
|---|---|
| Serial | 2026072501 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2020-04-01 |
| Expires | 2028-04-30 (559d) |
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 |
|---|---|---|---|
| 2026-10-09 09:30:15 | 1443ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 02:52:03 | 4409ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 22:32:58 | 542ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 22:21:11 | 564ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 21:30:28 | 912ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 20:47:59 | 471ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-18 14:55:51 shown | 4769ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-26 04:47:19 | 2573ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 15:12:47 | 469ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 11:56:33 | 544ms | 2 NS 1 A 0 MX | 🔒 Secure |