cjdk.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 9 December 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 78.31.253.132 is hosted by EWII Bredbaand A/S (AS204151) in Denmark. Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.simply.com | — | — | — |
| ns2.simply.com | — | — | — |
| ns3.simply.com | — | — | — |
| ns4.simply.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 78.31.253.132 | — | 78-31-253-132.static.kviknet.net | AS204151 | EWII Bredbaand A/S | 78.31.252.0/22 | 🇩🇰 Denmark | Ans |
| TXT Record |
|---|
| protonmail-verification=0f2763fea5c5d48156541d5d78d665eba357d379 |
| v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (cjdk.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (_dmarc.cjdk.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve (all like this) |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
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 | 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 | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026030800 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2006-12-09 |
| Expires | 2026-12-31 (70d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 18:40:35 | 1132ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-30 19:08:18 | 1531ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-27 10:33:29 | 861ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-02 10:29:47 | 2704ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-19 15:19:46 | 608ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-16 22:37:38 | 65535ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-16 21:11:03 | 579ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-16 21:09:28 shown | 2516ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-16 21:01:03 | 1502ms | 4 NS 1 A 2 MX | 🔓 Insecure |