c2n.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 178.20.216.107 is hosted by Atea A/S (AS21060) in Denmark. Mail is handled by c2n.dk. 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 |
|---|---|---|---|---|---|---|---|
| 178.20.216.107 | 14400s | server15.chosting.dk | AS21060 | Atea A/S | 178.20.216.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 14400s | c2n.dk | 178.20.216.107 2a01:7cc0:101:ffff::1:f |
server15.chosting.dk server15.chosting.dk |
AS21060 Atea A/S AS21060 Atea A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 178.20.216.107 |
| 🔶 Autoconfig | 178.20.216.107 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:7cc0:101:ffff::1:f | 14400s | server15.chosting.dk | 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 |
|---|
| v=spf1 ip4:178.20.216.107 include:spf.chosting.dk ip4:178.20.216.236 ip4:178.20.216.4 ?all |
| Policy | Record (c2n.dk) |
|---|---|
| ?all (neutral) | v=spf1 ip4:178.20.216.107 include:spf.chosting.dk ip4:178.20.216.236 ip4:178.20.216.4 ?all |
| Policy | Record (_dmarc.c2n.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | c2n.dk (all on c2n.dk) |
| www vs bare domain | Same network c2n.dk: 178.20.216.107 2a01:7cc0:101:ffff::1:f (AS21060) www.c2n.dk: 178.20.216.107 2a01:7cc0:101:ffff::1:f (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: 3/10 · policy: ?all
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.c2n.dk | mtL8YD-doZvy_eKQV6mkDQ-nK6aWtJLBn978y4e00Mg |
| 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 | 2026072301 |
| 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 |
|---|---|---|---|
| 2026-09-23 18:49:24 | 828ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 14:04:54 | 1014ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-23 23:33:38 shown | 1119ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 22:21:45 | 2185ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-23 22:24:24 | 808ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 18:43:23 | 431ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 18:40:33 | 593ms | 3 NS 1 A 1 MX | 🔓 Insecure |