acdu.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 3 November 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.142 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx2.pub.mailpod6-cph3.one.com, mx3.pub.mailpod6-cph3.one.com and 1 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 |
|---|---|---|---|---|---|---|---|
| 46.30.213.142 | 3600s | webcluster1.webpod14-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 | mx2.pub.mailpod6-cph3.one.com | 185.164.14.71 | mx2.pub.mailpod6-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.pub.mailpod6-cph3.one.com | 185.164.14.72 | mx3.pub.mailpod6-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx1.pub.mailpod6-cph3.one.com | 185.164.14.70 | mx1.pub.mailpod6-cph3.one.com | AS51468 One.com A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10c:76:625f:8cfe:ec6a | 3600s | — | AS51468 | One.com A/S | 2a02:2350::/32 | 🇩🇰 Denmark | Copenhagen |
| www | 46.30.213.179 2a02:2350:5:10c:8098:8591:1e90:d7c4 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network acdu.dk: 46.30.213.179 2a02:2350:5:10c:8098:8591:1e90:d7c4 (AS51468) www.acdu.dk: 46.30.213.179 2a02:2350:5:10c:8098:8591:1e90:d7c4 (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.mailpod6-cph3.one.com | DANE-EE · SPKI · SHA-256 | 431B938774CCDD31779725AB0617DD17… |
| SMTP _25._tcp.mx2.pub.mailpod6-cph3.one.com | DANE-EE · SPKI · SHA-256 | 431B938774CCDD31779725AB0617DD17… |
| SMTP _25._tcp.mx3.pub.mailpod6-cph3.one.com | DANE-EE · SPKI · SHA-256 | 431B938774CCDD31779725AB0617DD17… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Key type | Algorithm | Public key |
|---|---|---|
| KSK | ECDSA P-256/SHA-256 | Mp59f+Dz/61oi4vNgQVEFY8luVjW4Tdiu3nLz2RB… |
| ZSK | ECDSA P-256/SHA-256 | yEoaVVbyyktPLsPb1a3A/0y6s+zz63kNMREAjXL1… |
| Field | Value |
|---|---|
| Serial | 2026081702 |
| 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 | 2016-11-03 |
| Expires | 2030-12-15 (1513d) |
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 |
|---|---|
| 2ways-jujutsu.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 18:18:17 | 1411ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-16 20:29:55 | 22862ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-18 18:13:16 shown | 1497ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-17 12:25:35 | 4335ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-27 09:03:16 | 726ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-18 09:34:07 | 1051ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-16 12:58:45 | 1598ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-16 12:57:59 | 1877ms | 2 NS 1 A 3 MX | 🔒 Secure |