bjornkarlsen.dk is a .dk domain served by 3 nameservers (ns1a.systemina.dk, ns2a.systemina.dk, ns3a.systemina.dk). It was registered on 1 September 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx.zoho.eu, mx2.zoho.eu and 1 more. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1a.systemina.dk | — | — | — |
| ns2a.systemina.dk | — | — | — |
| ns3a.systemina.dk | — | — | — |
| TXT Record |
|---|
| v=spf1 include:zohomail.eu a mx include:spf.systemina.dk include:spf.protection.outlook.com -all |
| zoho-verification=zb40718740.zmverify.zoho.eu |
| Policy | Record (bjornkarlsen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:zohomail.eu a mx include:spf.systemina.dk include:spf.protection.outlook.com -all |
| www | 212.237.249.17 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 6/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026060521 |
| Primary NS (MNAME) | ns1a.systemina.dk |
| Responsible (RNAME) | hostmaster@systemina.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | DANDOMAIN A/S |
| Registered | 2011-09-01 |
| Expires | 2027-09-30 (338d) |
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 |
|---|---|---|---|
| 2026-09-23 14:25:25 | 1059ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-21 10:02:16 | 1060ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-21 06:15:49 | 1884ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-28 06:08:35 | 9884ms | 3 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-29 05:05:57 | 884ms | 3 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-16 14:44:34 shown | 763ms | 3 NS 0 A 3 MX | 🔓 Insecure |