byduplo.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 3 February 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.43 is hosted by One.com A/S (AS51468) in Denmark. 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 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 | 195.206.121.10 | ns01.one.com | AS197495 One.com A/S |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.30.213.43 | 3600s | webcluster2.webpod12-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.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 | 46.30.213.43 |
| 🔶 Autoconfig | 46.30.213.43 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10a:805f:4cd0:783d:c203 | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 46.30.213.9 2a02:2350:5:10a:4f:a1e8:5ebc:4232 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network byduplo.dk: 46.30.213.9 2a02:2350:5:10a:4f:a1e8:5ebc:4232 (AS51468) www.byduplo.dk: 46.30.213.9 2a02:2350:5:10a:4f:a1e8:5ebc:4232 (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.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 00E55642F312E05CDB899B1433EDF47F… |
| SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 00E55642F312E05CDB899B1433EDF47F… |
| SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 00E55642F312E05CDB899B1433EDF47F… |
| SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 00E55642F312E05CDB899B1433EDF47F… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061905 |
| 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 | 2022-02-03 |
| Expires | 2027-02-02 (106d) |
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 |
|---|---|---|---|
| 2026-10-19 02:16:37 | 1113ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 11:32:12 | 444ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-05 02:19:57 | 535ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-06 06:24:56 | 680ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-19 19:13:55 | 24558ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-08 15:51:29 | 1201ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-16 00:53:30 | 4570ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-05 23:56:17 | 607ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-04 21:39:28 | 1741ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 19:19:41 | 585ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-27 22:45:02 shown | 1430ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-26 23:42:41 | 3343ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-22 21:03:42 | 915ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 06:16:36 | 893ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-20 21:45:45 | 1308ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 18:05:09 | 681ms | 2 NS 1 A 4 MX | 🔒 Secure |