stroemgren.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 May 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.63.169.156 is hosted by TDC Holding A/S (AS3292) 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 |
|---|---|---|---|---|---|---|---|
| 87.63.169.156 | 3600s | 87-63-169-156-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 87.62.0.0/15 | 🇩🇰 Denmark | Roskilde |
| 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 |
|---|
| v=spf1 mx a -all |
| Policy | Record (stroemgren.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a -all |
| Policy | Record (_dmarc.stroemgren.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:admin@stroemgren.dk; ruf=mailto:admin@stroemgren.dk; sp=reject; pct=100; ri=2592000 |
| www | 46.30.211.38 (AS51468) (address records, no CNAME) |
| www vs bare domain | Different networks (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 068A81EDC98C58D5D494EDF2924D5F50… |
| SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 068A81EDC98C58D5D494EDF2924D5F50… |
| SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 068A81EDC98C58D5D494EDF2924D5F50… |
| SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 068A81EDC98C58D5D494EDF2924D5F50… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026070308 |
| 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 | 2002-05-07 |
| Expires | 2027-06-30 (246d) |
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 |
|---|---|
| stromgren.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-25 19:01:18 | 582ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-24 15:12:23 | 697ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-30 00:24:47 | 586ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-28 03:43:22 | 567ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-27 11:32:51 shown | 17066ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-26 11:05:42 | 16948ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-03 19:50:29 | 710ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-29 08:24:28 | 706ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-28 18:52:54 | 756ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-28 03:35:05 | 1594ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-26 00:39:35 | 1430ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-22 07:19:45 | 1181ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 05:22:04 | 875ms | 2 NS 1 A 4 MX | 🔒 Secure |