hbuh.dk is a .dk domain served by 5 nameservers (ns1.d-n-s.dk, ns2.d-n-s.dk, ns3.d-n-s.dk and 2 more). It was registered on 4 July 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by hbuh-dk.mail.protection.outlook.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.
| TXT Record |
|---|
| DNS-Service by D-N-S.DK |
| MS=ms21913582 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (hbuh.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.hbuh.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:dmarc@hbuh.dk; ruf=mailto:dmarc@hbuh.dk; |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves hbuh.dk: no address www.hbuh.dk: no address |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-hbuh-dk._domainkey.hbuholding.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 1/10 · 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 | 2025031202 |
| Primary NS (MNAME) | ns1.d-n-s.dk |
| Responsible (RNAME) | hostmaster@d-n-s.dk |
| Refresh | 7200s |
| Retry | 120s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2017-07-04 |
| Expires | 2027-07-31 (284d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-27 07:58:25 | 5393ms | 5 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-20 04:02:06 | 2770ms | 5 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-19 23:27:05 | 7181ms | 5 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:03:49 | 4658ms | 5 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:01:52 shown | 5042ms | 5 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 10:59:42 | 5042ms | 5 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 10:57:46 | 7708ms | 5 NS 0 A 1 MX | 🔓 Insecure |