fp4.dk is a .dk domain served by 2 nameservers (dorthy.ns.cloudflare.com, felicity.ns.cloudflare.com). It was registered on 26 March 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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.
| TXT Record |
|---|
| protonmail-verification=e296d95709caedd0e4f59ed74f4379d2925e0102 |
| v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (fp4.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (_dmarc.fp4.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine |
| www | 104.21.87.51 172.67.141.132 2606:4700:3033::ac43:8d84 2606:4700:3034::6815:5733 (AS13335) (address records, no CNAME) |
| www vs bare domain | Only www resolves fp4.dk: no address (all like this)www.fp4.dk: 104.21.87.51 172.67.141.132 2606:4700:3033::ac43:8d84 2606:4700:3034::6815:5733 (AS13335) |
| Wildcard | No |
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 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| 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 | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2415464415 |
| Primary NS (MNAME) | dorthy.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | DANDOMAIN A/S |
| Registered | 2024-03-26 |
| Expires | 2027-03-25 (158d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 11:57:03 | 2362ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-10-11 11:16:21 | 1620ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-10-09 09:24:36 | 1278ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-09-22 01:29:03 shown | 1186ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-09-03 16:33:33 | 715ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-08-14 12:00:32 | 5199ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-07-23 04:02:33 | 10788ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-25 14:13:01 | 4405ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-21 23:21:49 | 1174ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 06:53:17 | 569ms | 2 NS 0 A 2 MX | ⚠️ Bogus |
| 2026-06-19 16:55:37 | 2883ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-17 10:49:46 | 9196ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-17 10:33:04 | 1161ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-17 10:25:37 | 676ms | 2 NS 0 A 2 MX | 🔓 Insecure |