sdgk.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 25 January 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.229.203.129 is hosted by Netnoerden ApS (AS216275) 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, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 91.229.203.129 | 21600s | — | AS216275 | Netnoerden ApS | 91.229.203.0/24 | 🇩🇰 Denmark | Virum |
| 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 |
| TXT Record |
|---|
| _globalsign-domain-verification=37J9nCtMCMWK-yjD30lugEa_hcZ0BiyVZYHRQX3cM_ |
| Policy | Record (_dmarc.sdgk.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:z2g4rfk7@ag.eu.dmarcadvisor.com, mailto:hdm@salsolo.dk; aspf=r |
| www | 104.21.13.48 172.67.154.160 2606:4700:3035::ac43:9aa0 2606:4700:3036::6815:d30 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 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 | 2026032501 |
| 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 | 2021-01-25 |
| Expires | 2027-01-31 (99d) |
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 |
|---|---|
| salsolo.dk | ONE.COM A/S |
| saltech.dk | ONE.COM A/S |
| sardercopenhagen.dk | ONE.COM A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 00:35:08 | 714ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-10-10 01:51:19 | 609ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-24 18:45:10 | 781ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-16 19:52:22 | 1091ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-07 21:32:52 | 1833ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-29 06:51:25 | 679ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-27 04:34:40 | 4283ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-22 18:02:19 | 4426ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-17 15:26:01 | 4011ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-06 02:56:42 | 1677ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-07-09 02:28:58 | 1949ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-07-07 04:23:29 | 2433ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-06-26 08:04:11 shown | 934ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 23:28:12 | 759ms | 2 NS 1 A 4 MX | 🔒 Secure |