holdhus.dk is a .dk domain served by 4 nameservers (ns1.dnscluster.dk, ns2.dnscluster.dk, ns3.dnscluster.dk and 1 more). It was registered on 23 January 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.184.84.10 is hosted by PerfGrid (AS59795) in The Netherlands. Mail is handled by in1.mail-infra.net, in2.mail-infra.net. The zone is DNSSEC-signed but currently fails validation, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 213.184.84.10 | — | nlsh05.shared-infra.net | AS59795 | PerfGrid | 213.184.84.0/23 | 🇳🇱 The Netherlands | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | in1.mail-infra.net | 2a01:4f8:c012:7e77::1 49.12.11.203 |
pmg1.h4r.eu filter02.h4r.eu |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| 20 | — | in2.mail-infra.net | 2001:41d0:701:1100::a6bc 57.129.66.76 |
filter04.h4r.eu filter04.h4r.eu |
AS16276 OVH SAS AS16276 OVH SAS |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a09:3a00:4010::1 | — | — | AS59795 | PerfGrid | 2a09:3a00:4000:0:0:0:0:0/40 | 🇳🇱 The Netherlands | — |
| TXT Record |
|---|
| v=spf1 +a +mx +include:spf-record.net ~all |
| Policy | Record (holdhus.dk) |
|---|---|
| ~all (soft fail) | v=spf1 +a +mx +include:spf-record.net ~all |
| Policy | Record (_dmarc.holdhus.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1;p=none; |
| www | 104.21.83.131 172.67.176.153 2606:4700:3031::ac43:b099 2606:4700:3035::6815:5383 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 4/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | broken trust chain resolving 'holdhus.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2025121103 |
| Primary NS (MNAME) | ns1.dnscluster.dk |
| Responsible (RNAME) | hostmaster@holdhus.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2018-01-23 |
| Expires | 2027-04-30 (191d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-04 02:10:53 | 463ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-03 02:09:18 | 2104ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-28 01:19:30 | 9390ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-01 00:31:55 | 1113ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-26 17:11:10 | 649ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-05 06:21:24 | 2584ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-21 08:50:07 | 3072ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-21 07:21:18 | 1102ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 13:59:29 shown | 3087ms | 4 NS 1 A 2 MX | ⚠️ Bogus |