codefu.dk is a .dk domain served by 2 nameservers (josh.ns.cloudflare.com, roxy.ns.cloudflare.com). It was registered on 28 March 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by amir.mx.cloudflare.net, linda.mx.cloudflare.net and 1 more. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|
| josh.ns.cloudflare.com | — | — | — |
| roxy.ns.cloudflare.com | — | — | — |
| TXT Record |
|---|
| v=spf1 include:_spf.mx.cloudflare.net ~all |
| Policy | Record (codefu.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.mx.cloudflare.net ~all |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves codefu.dk: no address www.codefu.dk: no address |
| Wildcard | No |
DNS lookups: 1/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.amir.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.amir.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.amir.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.isaac.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.isaac.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.isaac.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.linda.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.linda.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.linda.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2406670115 |
| Primary NS (MNAME) | josh.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2014-03-28 |
| Expires | 2027-03-31 (165d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-13 17:22:03 | 1318ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-28 19:48:20 | 716ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-26 16:12:18 | 768ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-24 19:28:25 | 9840ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-07-15 11:03:03 | 4148ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-29 19:15:17 | 1146ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-26 04:14:21 | 5044ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-23 15:06:02 | 927ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 21:45:00 | 650ms | 2 NS 0 A 3 MX | ⚠️ Bogus |
| 2026-06-16 21:41:36 shown | 2658ms | 2 NS 0 A 3 MX | 🔓 Insecure |