birgitcederholm.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 November 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.pub.mailpod10-cph3.one.com, mx2.pub.mailpod10-cph3.one.com and 2 more. The zone is DNSSEC-signed but currently fails validation, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.30.213.10 | — | webcluster1.webpod12-cph3.one.com | AS51468 | — | — | — | Copenhagen |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10a:51:48e8:331a:f03 | — | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| TXT Record |
|---|
| v=spf1 include:_custspf.one.com include:spf.rpost.net ~all |
| Policy | Record (birgitcederholm.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_custspf.one.com include:spf.rpost.net ~all |
| www | 46.30.213.10 2a02:2350:5:10a:51:48e8:331a:f03 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network birgitcederholm.dk: 46.30.213.10 2a02:2350:5:10a:51:48e8:331a:f03 (AS51468) www.birgitcederholm.dk: 46.30.213.10 2a02:2350:5:10a:51:48e8:331a:f03 (AS51468) |
| 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.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 411611ECE6466645A9E53512398A692D… |
| SMTP _25._tcp.mx2.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 411611ECE6466645A9E53512398A692D… |
| SMTP _25._tcp.mx3.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 411611ECE6466645A9E53512398A692D… |
| SMTP _25._tcp.mx4.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 411611ECE6466645A9E53512398A692D… |
| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'birgitcederholm.dk/DNSKEY/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2026053001 |
| 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 | 2020-11-15 |
| Expires | 2026-11-30 (43d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 14:50:27 | 782ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-30 14:46:08 | 633ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-29 15:01:53 | 1418ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-18 06:09:28 | 813ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-04 03:06:45 | 703ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-06 15:41:18 | 944ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-18 14:44:27 | 829ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-03 11:48:15 | 720ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-28 19:16:57 | 770ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-27 05:29:10 | 2110ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-25 11:21:55 | 767ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 14:49:16 shown | 570ms | 2 NS 1 A 4 MX | ⚠️ Bogus |
| 2026-06-16 14:40:07 | 883ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 14:40:02 | 1023ms | 2 NS 1 A 4 MX | 🔒 Secure |