karstenb.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 8 January 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.183 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod9-cph3.one.com, mx2.pub.mailpod9-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 this 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 |
|---|---|---|---|---|---|---|---|
| 77.111.240.183 | 3600s | webcluster56.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.mailpod9-cph3.one.com | 185.164.14.118 | mx1.pub.mailpod9-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.pub.mailpod9-cph3.one.com | 185.164.14.119 | mx2.pub.mailpod9-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.pub.mailpod9-cph3.one.com | 185.164.14.120 | mx3.pub.mailpod9-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.pub.mailpod9-cph3.one.com | 185.164.14.124 | mx4.pub.mailpod9-cph3.one.com | AS51468 One.com A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:102:80b8:5eac:837:a63f | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 77.111.240.183 2a02:2350:5:102:80b8:5eac:837:a63f (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network karstenb.dk: 77.111.240.183 2a02:2350:5:102:80b8:5eac:837:a63f (AS51468) www.karstenb.dk: 77.111.240.183 2a02:2350:5:102:80b8:5eac:837:a63f (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.mailpod9-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5D2162F5CED0ACD2C3D63E5582045A6C… |
| SMTP _25._tcp.mx2.pub.mailpod9-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5D2162F5CED0ACD2C3D63E5582045A6C… |
| SMTP _25._tcp.mx3.pub.mailpod9-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5D2162F5CED0ACD2C3D63E5582045A6C… |
| SMTP _25._tcp.mx4.pub.mailpod9-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5D2162F5CED0ACD2C3D63E5582045A6C… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026062901 |
| 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 | ONE.COM A/S |
| Registered | 2002-01-08 |
| 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 |
|---|---|---|---|
| 2026-10-09 13:45:58 | 463ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-01 18:27:06 | 2560ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-30 18:15:10 | 465ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-30 01:37:31 | 550ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-31 02:25:13 | 1641ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-24 03:32:32 | 1193ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-23 02:13:58 | 2187ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-04 09:04:16 | 6769ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-03 00:20:52 | 1112ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-30 14:01:29 shown | 805ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-25 04:29:24 | 602ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 13:08:50 | 2742ms | 2 NS 1 A 4 MX | 🔒 Secure |