handelskostskolen.dk is a .dk domain served by 2 nameservers (ns1.esis.dk, ns2.esis.dk). It was registered on 2 October 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.19.134.87 is hosted by Syddansk Erhvervsskole Odense-Vejle (AS199374) in Denmark. Mail is handled by mxnonexistent.handelskostskolen.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.esis.dk | 185.19.134.2 | ns1.esis.dk | AS199374 Syddansk Erhvervsskole Odense-Vejle |
| ns2.esis.dk | 185.19.134.3 | ns2.esis.dk | AS199374 Syddansk Erhvervsskole Odense-Vejle |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.19.134.87 |
| 🔶 Autoconfig | 185.19.134.87 |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (handelskostskolen.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.handelskostskolen.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=r; aspf=r |
| www | 185.19.134.87 (AS199374) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 | fully validated |
| Field | Value |
|---|---|
| Serial | 2020051800 |
| Primary NS (MNAME) | ns1.esis.dk |
| Responsible (RNAME) | hostmaster |
| Refresh | 900s |
| Retry | 600s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1997-10-02 |
| Expires | 2027-07-31 (279d) |
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 |
|---|---|---|---|
| 2026-10-23 22:28:39 shown | 1131ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-21 17:23:12 | 870ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-20 15:16:24 | 1380ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-19 11:40:48 | 4541ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-16 09:41:46 | 1575ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-12 06:39:15 | 3141ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-10 03:51:38 | 514ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-04 18:22:40 | 752ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 18:13:47 | 758ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-28 17:30:35 | 771ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 16:18:22 | 649ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 15:37:53 | 751ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-18 11:56:10 | 855ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-11 09:41:28 | 3730ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-04 07:47:00 | 537ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-30 21:52:44 | 1228ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 11:36:35 | 548ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-22 19:54:08 | 2643ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-20 19:28:21 | 674ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-15 09:19:23 | 3518ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-12 18:05:45 | 2073ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-10 08:06:21 | 2561ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-06 06:14:58 | 813ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-31 06:53:04 | 1362ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-27 03:41:53 | 962ms | 2 NS 1 A 1 MX | 🔒 Secure |