mathiashoffmann.dk is a .dk domain served by 4 nameservers (ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.151.30.169 is hosted by 20i Limited (AS48254) in United Kingdom. Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 185.151.30.169 | 3600s | 185-151-30-169.ptr4.stackcp.net | AS48254 | 20i Limited | 185.151.28.0/22 | 🇬🇧 United Kingdom | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.stackmail.com → 45.8.227.100 |
| 🔶 Autoconfig | 185.151.30.169 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a07:7800::169 | 3600s | — | AS48254 | 20i Limited | 2a07:7800:0:0:0:0:0:0/46 | 🇬🇧 United Kingdom | — |
| TXT Record |
|---|
| protonmail-verification=7c0274717dd14d762e266ddac6dcfdd2cbde0001 |
| v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (mathiashoffmann.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (_dmarc.mathiashoffmann.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;rf=afrf;ri=86400 |
| www | 185.151.30.169 2a07:7800::169 (AS48254) (address records, no CNAME) |
| www vs bare domain | Same network mathiashoffmann.dk: 185.151.30.169 2a07:7800::169 (AS48254) www.mathiashoffmann.dk: 185.151.30.169 2a07:7800::169 (AS48254) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 2/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 1768556966 |
| Primary NS (MNAME) | ns1.stackdns.com |
| Responsible (RNAME) | hostmaster@stackdns.com |
| Refresh | 1800s |
| Retry | 900s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 04:47:14 shown | 859ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-28 10:32:23 | 1411ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-26 00:27:12 | 1168ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-17 21:30:17 | 913ms | 4 NS 1 A 2 MX | 🔓 Insecure |