underbjergconsult.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 20 September 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by underbjergconsult-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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.
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.40 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms30691087 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (underbjergconsult.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.underbjergconsult.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; adkim=s; aspf=s; |
| www | NXDOMAIN |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-underbjergconsult-dk._domainkey.euhholding.onmicrosoft.com | RSA · ~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 | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026092001 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2019-09-20 |
| Expires | 2027-09-30 (362d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 03:28:43 | 1743ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-02 03:24:55 | 578ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-01 03:21:59 | 1188ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-29 21:37:18 shown | 1230ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-22 01:16:19 | 1267ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-03 08:10:44 | 815ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-24 14:42:41 | 864ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-23 17:08:06 | 1158ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 18:49:59 | 3386ms | 2 NS 0 A 1 MX | 🔒 Secure |