holmnielsen.dk is a .dk domain served by 2 nameservers (ns0.thundercloud.uk, ns1.thundercloud.uk). It was registered on 2 June 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 149.255.62.128 is hosted by Awareness Software Limited (AS34931) in United Kingdom. Mail is handled by holmnielsen.dk.mx.one.com. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns0.thundercloud.uk | 149.255.60.1 | ns0.thundercloud.uk | AS34931 Awareness Software Limited |
| ns1.thundercloud.uk | 185.53.57.60 | ns1.thundercloud.uk | AS12488 Krystal Hosting Ltd |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 149.255.62.128 | — | cloud331.thundercloud.uk | AS34931 | Awareness Software Limited | 149.255.56.0/21 | 🇬🇧 United Kingdom | — |
| TXT Record |
|---|
| v=spf1 include:relay.thundermail.uk include:_custspf.one.com ~all |
| Policy | Record (holmnielsen.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:relay.thundermail.uk include:_custspf.one.com ~all |
| Policy | Record (_dmarc.holmnielsen.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www CNAME | holmnielsen.dk (all on holmnielsen.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 4/10 · 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 | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026052601 |
| Primary NS (MNAME) | ns1.thundercloud.uk |
| Responsible (RNAME) | henrik@2ndlevel.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2010-06-02 |
| Expires | 2028-06-30 (612d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-24 00:05:55 | 1067ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-16 12:00:52 | 3127ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-02 22:46:27 | 3782ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 19:52:19 | 2458ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-16 18:47:04 | 1577ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-26 12:04:23 | 3625ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 02:10:17 | 2833ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 00:43:43 | 911ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 13:33:43 shown | 2540ms | 2 NS 1 A 1 MX | 🔓 Insecure |