openit.dk is a .dk domain served by 2 nameservers (ns1.tdh-net.dk, ns2.tdh-net.dk). 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 3 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 |
|---|---|---|---|
| ns1.tdh-net.dk | 185.229.151.68 | ns1.tdh-net.dk | AS204988 TDH-Net ApS |
| ns2.tdh-net.dk | 185.229.151.76 | ns2.tdh-net.dk | AS204988 TDH-Net ApS |
| TXT Record |
|---|
| v=spf1 include:_spf.google.com include:relay.tdh-net.dk include:relay2.tdh-net.dk -all |
| Policy | Record (openit.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.google.com include:relay.tdh-net.dk include:relay2.tdh-net.dk -all |
| www CNAME | ghs.google.com (all on google.com) |
| Wildcard | No |
DNS lookups: 3/10 · 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 | 2024042303 |
| Primary NS (MNAME) | ns1.tdh-net.dk |
| Responsible (RNAME) | info@tdh-net.dk |
| Refresh | 3600s |
| Retry | 900s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 900s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-04 09:34:11 | 2718ms | 2 NS 0 A 5 MX | 🔓 Insecure |
| 2026-06-25 12:02:18 | 3460ms | 2 NS 0 A 5 MX | 🔓 Insecure |
| 2026-06-18 04:34:07 shown | 848ms | 2 NS 0 A 5 MX | 🔓 Insecure |