kastbjerghus.dk is a .dk domain served by 3 nameservers (ns4.dns-123.net, ns5.dns-123.net, ns6.dns-123.net). It was registered on 30 May 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.186.164.155 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by kastbjerghus-dk.mail.protection.outlook.com. 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 |
|---|---|---|---|---|---|---|---|
| 5.186.164.155 | 7200s | server7155.serverpark.dk | AS44869 | FIBIA P/S | 5.186.0.0/16 | 🇩🇰 Denmark | Frederiksberg |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| 🔶 Autoconfig | 5.186.164.155 |
| TXT Record |
|---|
| MS=ms90699570 |
| v=spf1 include:spf.protection.outlook.com -allv=spf1 include:spf.protection.outlook.com include:spf.mailersend.net ~all |
| Policy | Record (kastbjerghus.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.protection.outlook.com -allv=spf1 include:spf.protection.outlook.com include:spf.mailersend.net ~all |
| Policy | Record (_dmarc.kastbjerghus.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 5.186.164.155 (AS44869) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: ~all
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2023053002 |
| Primary NS (MNAME) | ns4.dns-123.net |
| Responsible (RNAME) | admin@dns-123.net |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | INTERNET 123 ApS |
| Registered | 2023-05-30 |
| Expires | 2027-05-29 (224d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 09:20:48 | 1308ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 18:02:26 | 9746ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 23:35:26 | 1473ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-02 21:04:37 shown | 2631ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 07:54:02 | 788ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 04:11:07 | 916ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 07:26:30 | 1194ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 13:25:32 | 3982ms | 3 NS 1 A 1 MX | 🔒 Secure |