duh.dk is a .dk domain served by 2 nameservers (a.portsdns.se, b.portsdns.net). It was registered on 2 July 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.14.90.203 is hosted by Tele2 SWIPnet (AS1257) in Sweden. Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 more. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 193.14.90.203 | 28800s | redirect.portsit.se | AS1257 | Tele2 SWIPnet | 193.12.0.0/14 | 🇸🇪 Sweden | Malmö |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.pub.mailpod11-cph3.one.com | 104.37.34.230 | mx1.pub.mailpod11-cph3.one.com | AS51468 One.com A/S |
| 10 | 3600s | mx2.pub.mailpod11-cph3.one.com | 104.37.34.231 | mx2.pub.mailpod11-cph3.one.com | AS51468 One.com A/S |
| 10 | 3600s | mx3.pub.mailpod11-cph3.one.com | 104.37.34.232 | mx3.pub.mailpod11-cph3.one.com | AS51468 One.com A/S |
| 10 | 3600s | mx4.pub.mailpod11-cph3.one.com | 104.37.34.233 | mx4.pub.mailpod11-cph3.one.com | AS51468 One.com A/S |
| www | 193.14.90.203 (AS1257) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 24F573980561755185B794745411B05D… |
| SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 24F573980561755185B794745411B05D… |
| SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 24F573980561755185B794745411B05D… |
| SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 24F573980561755185B794745411B05D… |
| 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 | 2024032700 |
| Primary NS (MNAME) | a.portsdns.se |
| Responsible (RNAME) | registry@ports.net |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 28800s |
| Field | Value |
|---|---|
| Registrar | Abion AB |
| Registered | 2001-07-02 |
| Expires | 2027-09-30 (347d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 17:51:12 shown | 714ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-09-23 19:02:32 | 4694ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-08-26 01:22:51 | 1257ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-08-24 23:57:40 | 2546ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-07-31 23:48:14 | 1003ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-07-27 14:17:23 | 18147ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-25 07:27:52 | 749ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-24 08:50:07 | 984ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 05:13:46 | 2330ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-17 05:10:50 | 13768ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-17 05:07:33 | 767ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-17 05:00:28 | 1146ms | 2 NS 1 A 4 MX | 🔓 Insecure |