henning-knudsen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 12 February 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, has no 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.pub.mailpod11-cph3.one.com | 104.37.34.230 | mx1.pub.mailpod11-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.pub.mailpod11-cph3.one.com | 104.37.34.231 | mx2.pub.mailpod11-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.pub.mailpod11-cph3.one.com | 104.37.34.232 | mx3.pub.mailpod11-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.pub.mailpod11-cph3.one.com | 104.37.34.233 | mx4.pub.mailpod11-cph3.one.com | AS51468 One.com A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | ghs.googlehosted.com → 142.251.142.243 |
| 🔶 Autoconfig | ghs.googlehosted.com → 142.251.142.243 |
| TXT Record |
|---|
| google-site-verification=AyW093D9M-lmUVYX76xNhydRzQR85NXEYaVrB4nZPR0 |
| google-site-verification=pYfqptwJx0Gn8dldGWua2eyUgolHb7tZS8jHNQRszes |
| www CNAME | ghs.googlehosted.com (all on googlehosted.com) |
| www vs bare domain | Only www resolves henning-knudsen.dk: no address (all like this)www.henning-knudsen.dk: 142.251.14.121 2a00:1450:4001:c15::79 (AS15169) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.henning-knudsen.dk | ghs.googlehosted.com |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 068A81EDC98C58D5D494EDF2924D5F50… |
| SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 068A81EDC98C58D5D494EDF2924D5F50… |
| SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 068A81EDC98C58D5D494EDF2924D5F50… |
| SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 068A81EDC98C58D5D494EDF2924D5F50… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026082901 |
| 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 | 2017-02-12 |
| Expires | 2027-02-28 (129d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 01:22:59 | 2211ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-02 22:18:26 | 733ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-01 02:32:36 shown | 831ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-08-30 01:24:46 | 629ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-08-27 05:57:41 | 1142ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-08-19 21:03:50 | 5183ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-06-17 11:16:42 | 1227ms | 2 NS 0 A 4 MX | 🔒 Secure |
| 2026-06-17 11:11:53 | 655ms | 2 NS 0 A 4 MX | 🔒 Secure |