holst-andersen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. 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.
| TXT Record |
|---|
| google-site-verification=553N-xAQ_pn60yGUsXbz6Q6Zou4g_gvBt1VZ9gYNqwA |
| www CNAME | ghs.googlehosted.com (all on googlehosted.com) |
| www vs bare domain | Only www resolves holst-andersen.dk: no address (all like this)www.holst-andersen.dk: 142.251.143.147 2a00:1450:400f:802::2013 (AS15169) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026081301 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 12:40:16 | 1315ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-10-02 17:31:02 | 507ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-10-01 06:43:07 | 658ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-09-29 18:03:25 | 517ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-09-18 14:45:35 | 1014ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-08-27 23:37:38 | 1309ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-08-14 22:22:53 shown | 5957ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-07-16 19:41:32 | 1103ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-06-27 22:27:53 | 1587ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-06-19 07:07:21 | 895ms | 2 NS 0 A 7 MX | 🔒 Secure |
| 2026-06-17 13:49:06 | 3507ms | 2 NS 0 A 7 MX | 🔒 Secure |