host-open.dk is a .dk domain served by 4 nameservers (ns1-05.azure-dns.com, ns2-05.azure-dns.net, ns3-05.azure-dns.org and 1 more). It was registered on 6 May 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.137.135.228 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 94.137.135.228 | — | — | AS48854 | team.blue Denmark A/S | 94.137.128.0/20 | 🇩🇰 Denmark | Bagsværd |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mx1.onlinemail.io | 185.21.42.12 | mx1.onlinemail.io | AS48854 team.blue Denmark A/S |
| 20 | — | mx2.onlinemail.io | 46.36.208.16 | mx2.onlinemail.io | AS48854 team.blue Denmark A/S |
| TXT Record |
|---|
| v=spf1 a include:spf.curanet.dk -all |
| Policy | Record (host-open.dk) |
|---|---|
| -all (hard fail) | v=spf1 a include:spf.curanet.dk -all |
| www CNAME | host-open.dk (all on host-open.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
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 | 1 |
| Primary NS (MNAME) | ns1-05.azure-dns.com |
| Responsible (RNAME) | azuredns-hostmaster@microsoft.com |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2002-05-06 |
| Expires | 2027-06-30 (252d) |
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).
| Domain | Registrar |
|---|---|
| etape-bornholm.dk | Punktum dk A/S (direct) |
| viking-atletik.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-26 10:06:18 | 542ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-28 03:46:35 | 737ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-26 21:29:45 | 793ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-17 13:07:28 shown | 2493ms | 4 NS 1 A 2 MX | 🔓 Insecure |