tk21.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 8 November 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.158 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod13-cph3.one.com, mx2.pub.mailpod13-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 |
|---|---|---|---|---|---|---|---|
| 46.30.215.158 | 3600s | webcluster1.webpod17-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.pub.mailpod13-cph3.one.com | 185.10.9.42 | mx1.pub.mailpod13-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.pub.mailpod13-cph3.one.com | 185.10.9.43 | mx2.pub.mailpod13-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.pub.mailpod13-cph3.one.com | 185.10.9.44 | mx3.pub.mailpod13-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.pub.mailpod13-cph3.one.com | 185.10.9.45 | mx4.pub.mailpod13-cph3.one.com | AS51468 One.com A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:106:f3:d58:2777:56c | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 46.30.215.158 2a02:2350:5:106:f3:d58:2777:56c (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network tk21.dk: 46.30.215.158 2a02:2350:5:106:f3:d58:2777:56c (AS51468) www.tk21.dk: 46.30.215.158 2a02:2350:5:106:f3:d58:2777:56c (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.mailpod13-cph3.one.com | DANE-EE · SPKI · SHA-256 | 7923F8E70F50B8C6DFFC5E73814B9D2D… |
| SMTP _25._tcp.mx2.pub.mailpod13-cph3.one.com | DANE-EE · SPKI · SHA-256 | 7923F8E70F50B8C6DFFC5E73814B9D2D… |
| SMTP _25._tcp.mx3.pub.mailpod13-cph3.one.com | DANE-EE · SPKI · SHA-256 | 7923F8E70F50B8C6DFFC5E73814B9D2D… |
| SMTP _25._tcp.mx4.pub.mailpod13-cph3.one.com | DANE-EE · SPKI · SHA-256 | 7923F8E70F50B8C6DFFC5E73814B9D2D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026071401 |
| 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 | 2024-11-08 |
| Expires | 2027-11-07 (380d) |
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).
| Domain | Registrar |
|---|---|
| hausuger.dk | INTERNET 123 ApS |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-21 22:11:05 | 2033ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-15 04:39:44 | 1970ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-24 06:32:21 | 580ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-22 02:06:45 | 614ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-13 17:16:44 | 753ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-01 00:39:42 | 711ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-28 00:53:18 | 1021ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-22 11:56:06 | 6090ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-14 00:04:54 | 1213ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-08 04:49:52 | 4920ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-14 05:10:39 shown | 1124ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-12 04:41:30 | 10798ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-26 14:16:42 | 682ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-24 07:37:11 | 935ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 19:28:33 | 791ms | 2 NS 1 A 4 MX | 🔒 Secure |