ftb.dk is a .dk domain served by 2 nameservers (emerie.ns.cloudflare.com, patrick.ns.cloudflare.com). It was registered on 26 February 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by pat.mailhosting.nu. The zone is DNSSEC-signed and validates, 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | pat.mailhosting.nu | 152.115.35.73 | pat.mailhosting.nu | AS31027 GlobalConnect A/S |
| TXT Record |
|---|
| v=spf1 mx a:pat.mailhosting.nu ~all |
| Policy | Record (ftb.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx a:pat.mailhosting.nu ~all |
| Policy | Record (_dmarc.ftb.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:admin@mailhosting.nu; ruf=mailto:admin@mailhosting.nu; adkim=s; aspf=s |
| www | Exists, no address |
| www vs bare domain | Neither resolves ftb.dk: no address www.ftb.dk: no address |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| dkim | — | 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: 2/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.pat.mailhosting.nu | DANE-TA · SPKI · SHA-256 | 0B9FA5A59EED715C26C1020C711B4F6E… |
| SMTP _25._tcp.pat.mailhosting.nu | DANE-TA · SPKI · SHA-256 | 762195C225586EE6C0237456E2107DC5… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2407515406 |
| Primary NS (MNAME) | emerie.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 | 2009-02-26 |
| Expires | 2027-02-28 (134d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-10 22:36:05 | 479ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-17 21:59:03 | 881ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-10 20:17:42 | 2052ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-07 02:36:35 | 1686ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-23 21:24:31 | 3360ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-19 19:43:45 | 1509ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-06 01:02:55 | 967ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-09 02:47:13 | 1810ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-07 00:30:46 | 1085ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-25 17:00:30 shown | 1208ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 10:35:42 | 893ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 10:26:43 | 886ms | 2 NS 0 A 1 MX | 🔒 Secure |