duck.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 9 March 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.148 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod14-cph3.one.com, mx2.pub.mailpod14-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 77.111.240.148 | 3600s | webcluster21.webpod11-cph3.one.com | AS51468 | One.com A/S | 77.111.240.0/22 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.pub.mailpod14-cph3.one.com | 185.10.9.212 | mx1.pub.mailpod14-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.pub.mailpod14-cph3.one.com | 185.10.9.213 | mx2.pub.mailpod14-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.pub.mailpod14-cph3.one.com | 185.10.9.214 | mx3.pub.mailpod14-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.pub.mailpod14-cph3.one.com | 185.10.9.215 | mx4.pub.mailpod14-cph3.one.com | AS51468 One.com A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:102:a2:3fcc:9f6d:198a | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 77.111.240.148 2a02:2350:5:102:a2:3fcc:9f6d:198a (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network duck.dk: 77.111.240.148 2a02:2350:5:102:a2:3fcc:9f6d:198a (AS51468) www.duck.dk: 77.111.240.148 2a02:2350:5:102:a2:3fcc:9f6d:198a (AS51468) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod14-cph3.one.com | DANE-EE · SPKI · SHA-256 | 42A27444ECBF3C0485409E27E2A6AB15… |
| SMTP _25._tcp.mx2.pub.mailpod14-cph3.one.com | DANE-EE · SPKI · SHA-256 | 42A27444ECBF3C0485409E27E2A6AB15… |
| SMTP _25._tcp.mx3.pub.mailpod14-cph3.one.com | DANE-EE · SPKI · SHA-256 | 42A27444ECBF3C0485409E27E2A6AB15… |
| SMTP _25._tcp.mx4.pub.mailpod14-cph3.one.com | DANE-EE · SPKI · SHA-256 | 42A27444ECBF3C0485409E27E2A6AB15… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101201 |
| 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 | 1998-03-09 |
| Expires | 2027-03-31 (164d) |
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 |
|---|---|---|---|
| 2026-10-12 22:24:00 shown | 452ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-07 11:03:42 | 484ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-01 05:50:31 | 600ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-24 14:16:40 | 699ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-30 07:07:13 | 1655ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-29 02:02:19 | 662ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-27 00:59:10 | 954ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-01 05:57:46 | 6147ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-26 16:06:31 | 4865ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-25 15:30:23 | 4937ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-17 22:31:21 | 4999ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-02 00:44:59 | 738ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 04:55:16 | 686ms | 2 NS 1 A 4 MX | 🔒 Secure |