karstenulstrup.dk is a .dk domain served by 3 nameservers (ns1.dns.services, ns2.dns.services, ns3.dns.services). It was registered on 1 January 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.131.238 is hosted by Christian Ebsen ApS (AS62121) in Denmark. 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 |
|---|---|---|---|---|---|---|---|
| 195.242.131.238 | — | forward01.dns.services | AS62121 | Christian Ebsen ApS | 195.242.130.0/23 | 🇩🇰 Denmark | — |
| www | 195.242.131.238 (AS62121) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2025042306 |
| Primary NS (MNAME) | ns1.dns.services |
| Responsible (RNAME) | post@dns.services |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 7200s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2013-01-01 |
| Expires | 2027-04-30 (193d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-25 03:34:08 | 383ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-01 07:59:45 | 464ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-01 08:13:44 | 490ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-18 00:06:38 shown | 643ms | 3 NS 1 A 0 MX | 🔒 Secure |