mdduo.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.85 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx2.pub.mailpod8-cph3.one.com, mx3.pub.mailpod8-cph3.one.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 185.21.41.85 | 600s | linux34.curanet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx2.pub.mailpod8-cph3.one.com | 185.164.14.103 | mx2.pub.mailpod8-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.pub.mailpod8-cph3.one.com | 185.164.14.104 | mx3.pub.mailpod8-cph3.one.com | AS51468 One.com A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.21.41.85 |
| 🔶 Autoconfig | 185.21.41.85 |
| www | 185.21.41.85 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx2.pub.mailpod8-cph3.one.com | DANE-EE · SPKI · SHA-256 | E7531AB55E1935413AA5EC5366CF909D… |
| SMTP _25._tcp.mx3.pub.mailpod8-cph3.one.com | DANE-EE · SPKI · SHA-256 | E7531AB55E1935413AA5EC5366CF909D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101304 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 02:38:46 shown | 890ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 10:50:03 | 675ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-19 04:54:31 | 576ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 12:17:19 | 672ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-15 01:31:46 | 858ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-13 16:06:17 | 1048ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-21 02:30:57 | 40783ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-24 21:00:20 | 960ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-18 00:00:28 | 823ms | 2 NS 1 A 3 MX | 🔒 Secure |