holding1.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 4 January 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.90 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.30.213.90 | 3600s | webcluster1.webpod13-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.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 |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 46.30.213.90 |
| 🔶 Autoconfig | 46.30.213.90 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10b:d1:1120:63ff:2769 | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 46.30.213.76 2a02:2350:5:10b:63:ee1e:acc4:25b1 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network holding1.dk: 46.30.213.76 2a02:2350:5:10b:63:ee1e:acc4:25b1 (AS51468) www.holding1.dk: 46.30.213.76 2a02:2350:5:10b:63:ee1e:acc4:25b1 (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 | F9CAE2DF0FCB54F04130769823BED77A… |
| SMTP _25._tcp.mx2.pub.mailpod14-cph3.one.com | DANE-EE · SPKI · SHA-256 | F9CAE2DF0FCB54F04130769823BED77A… |
| SMTP _25._tcp.mx3.pub.mailpod14-cph3.one.com | DANE-EE · SPKI · SHA-256 | F9CAE2DF0FCB54F04130769823BED77A… |
| SMTP _25._tcp.mx4.pub.mailpod14-cph3.one.com | DANE-EE · SPKI · SHA-256 | F9CAE2DF0FCB54F04130769823BED77A… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026062705 |
| 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 | 2017-01-04 |
| Expires | 2027-01-31 (100d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-21 23:28:12 | 567ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 10:03:10 | 893ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-01 03:40:04 | 750ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-25 19:58:51 | 650ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-19 19:08:46 | 622ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-28 19:19:52 | 576ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-27 15:09:06 | 634ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-01 23:36:31 | 735ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-29 03:23:30 shown | 557ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-26 06:11:31 | 1529ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-25 12:27:34 | 2080ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-20 16:37:43 | 1721ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 13:23:41 | 2728ms | 2 NS 1 A 4 MX | 🔒 Secure |