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 46.30.213.9 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by .. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 46.30.213.9 | 3600s | webcluster1.webpod12-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10a:4f:a1e8:5ebc:4232 | 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 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100401 |
| 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 (107d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 11:32:12 shown | 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 | 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 |