sidsundt.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 11 May 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.121 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 not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 46.30.215.121 | 3600s | webcluster2.webpod16-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 |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 46.30.215.121 |
| 🔶 Autoconfig | 46.30.215.121 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:111:80c8:ebba:3b61:a170 | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 46.30.215.121 2a02:2350:5:111:80c8:ebba:3b61:a170 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network sidsundt.dk: 46.30.215.121 2a02:2350:5:111:80c8:ebba:3b61:a170 (AS51468) www.sidsundt.dk: 46.30.215.121 2a02:2350:5:111:80c8:ebba:3b61:a170 (AS51468) |
| Wildcard | Yes: any name under the zone resolves |
| 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 | 6F2F6668E559087AD0C5D55F223128E2… |
| SMTP _25._tcp.mx2.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 6F2F6668E559087AD0C5D55F223128E2… |
| SMTP _25._tcp.mx3.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 6F2F6668E559087AD0C5D55F223128E2… |
| SMTP _25._tcp.mx4.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 6F2F6668E559087AD0C5D55F223128E2… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026101802 |
| 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 | 2011-05-11 |
| Expires | 2027-05-31 (223d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-19 05:18:12 shown | 2082ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-10-18 04:37:24 | 1525ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-10-09 12:49:24 | 512ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-10-01 07:37:29 | 1924ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-08-28 01:04:48 | 860ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-08-19 22:23:53 | 3755ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-08-18 21:45:27 | 7085ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-21 03:49:44 | 1088ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-19 09:46:30 | 1182ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-17 12:02:53 | 699ms | 2 NS 1 A 4 MX | 🔓 Insecure |