1820.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 2 March 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.103 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod10-cph3.one.com, mx2.pub.mailpod10-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 |
|---|---|---|---|---|---|---|---|
| 46.30.213.103 | 3600s | webcluster2.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.mailpod10-cph3.one.com | 104.37.34.70 | mx1.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.pub.mailpod10-cph3.one.com | 104.37.34.71 | mx2.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.pub.mailpod10-cph3.one.com | 104.37.34.72 | mx3.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.pub.mailpod10-cph3.one.com | 104.37.34.73 | mx4.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10b:803f:a72e:e28b:1252 | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 46.30.213.103 2a02:2350:5:10b:803f:a72e:e28b:1252 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network 1820.dk: 46.30.213.103 2a02:2350:5:10b:803f:a72e:e28b:1252 (AS51468) www.1820.dk: 46.30.213.103 2a02:2350:5:10b:803f:a72e:e28b:1252 (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.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5932F73E86E0548B77B582F47919F654… |
| SMTP _25._tcp.mx2.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5932F73E86E0548B77B582F47919F654… |
| SMTP _25._tcp.mx3.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5932F73E86E0548B77B582F47919F654… |
| SMTP _25._tcp.mx4.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5932F73E86E0548B77B582F47919F654… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026082103 |
| 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 | 2008-03-02 |
| Expires | 2027-03-31 (165d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 23:29:00 | 540ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-24 10:55:13 | 912ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-23 10:46:15 | 718ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-14 20:18:12 | 1328ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-28 05:38:11 | 855ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-22 12:55:59 | 16891ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-21 12:31:20 shown | 2643ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-20 12:23:11 | 4448ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-22 03:53:38 | 1211ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-24 03:53:05 | 3078ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 12:46:28 | 919ms | 2 NS 1 A 4 MX | 🔒 Secure |