understroem.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.150 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.mailpod16-cph3.g1i.one.com, mx2.mailpod16-cph3.g1i.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 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 |
|---|---|---|---|---|---|---|---|
| 46.30.213.150 | 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 | mx1.mailpod16-cph3.g1i.one.com | 5.249.232.33 | mx1.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.mailpod16-cph3.g1i.one.com | 5.249.232.34 | mx2.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.mailpod16-cph3.g1i.one.com | 5.249.232.35 | mx3.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.mailpod16-cph3.g1i.one.com | 5.249.232.36 | mx4.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10c:b1:835a:afa2:82ff | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 46.30.213.150 2a02:2350:5:10c:b1:835a:afa2:82ff (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network understroem.dk: 46.30.213.150 2a02:2350:5:10c:b1:835a:afa2:82ff (AS51468) www.understroem.dk: 46.30.213.150 2a02:2350:5:10c:b1:835a:afa2:82ff (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.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026092201 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 13:29:31 shown | 494ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-30 23:38:52 | 660ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-30 08:57:07 | 626ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-24 04:14:20 | 653ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-24 03:07:57 | 852ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-20 14:14:50 | 1003ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-13 12:11:05 | 2334ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-04 11:13:42 | 369ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-23 14:39:01 | 1532ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-28 02:32:41 | 662ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-24 00:59:51 | 6798ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-18 04:00:54 | 1017ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-03 13:09:10 | 630ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-26 02:28:19 | 778ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 19:58:45 | 936ms | 2 NS 1 A 4 MX | 🔒 Secure |