zone51.dk is a .dk domain served by 3 nameservers (ns5.chosting.dk, ns6.chosting.dk, ns7.chosting.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.20.216.31 is hosted by Atea A/S (AS21060) in Denmark. 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 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 |
|---|---|---|---|---|---|---|---|
| 178.20.216.31 | 14400s | server12.chosting.dk | AS21060 | Atea A/S | 178.20.216.0/23 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 178.20.216.31 |
| 🔶 Autoconfig | 178.20.216.31 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:7cc0:101:ffff::1:a | 14400s | — | AS21060 | Atea A/S | 2a01:7cc0:100:0:0:0:0:0/40 | 🇩🇰 Denmark | — |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| protonmail-verification=9c4115cfa1fba65b710212dba2eecb2057e1a82b |
| v=spf1 ip4:178.20.216.31 include:spf.chosting.dk ip4:178.20.216.32 include:_spf.protonmail.ch mx ~all |
| Policy | Record (zone51.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:178.20.216.31 include:spf.chosting.dk ip4:178.20.216.32 include:_spf.protonmail.ch mx ~all |
| Policy | Record (_dmarc.zone51.dk) |
|---|---|
| p=quarantine | v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:seb@zone51.dk |
| www CNAME | zone51.dk (all on zone51.dk) |
| www vs bare domain | Same network zone51.dk: 178.20.216.31 2a01:7cc0:101:ffff::1:a (AS21060) www.zone51.dk: 178.20.216.31 2a01:7cc0:101:ffff::1:a (AS21060) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 6/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.zone51.dk | _yeQo5JPwtLuV9-u-qX5UUkFo4FJZwIs6bG_5O1Atm8 |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| 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 | 2026071001 |
| Primary NS (MNAME) | ns5.chosting.dk |
| Responsible (RNAME) | logs@chosting.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 08:53:07 | 829ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-10 10:00:33 | 1015ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-27 22:19:59 | 877ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-25 11:22:14 shown | 739ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-10 22:08:35 | 1793ms | 3 NS 1 A 2 MX | ❓ Unknown |
| 2026-06-25 04:42:45 | 3703ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-23 18:15:25 | 981ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 22:27:08 | 4692ms | 3 NS 1 A 2 MX | 🔓 Insecure |