fbr.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 109.238.54.175 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 109.238.54.175 | 43200s | — | AS47292 | Sentia Denmark A/S | 109.238.48.0/21 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.8 |
| TXT Record |
|---|
| apple-domain-verification=IYhsHUd1qKUEZ5vt |
| d365mktkey=Uf9PW7pduVGPY47VxSJpf2mHDjtUXAdPFRnv62V6IiMx |
| Danish Consumer Council |
| MS=ms68495003 |
| v=spf1 ip4:86.48.66.42 ip4:109.238.54.175 ip4:109.238.54.52 ip4:91.102.88.131 ip4:167.89.108.1 ip4:167.89.108.13 ip4:167.89.92.35 include:spf.protection.outlook.com include:_spf.centerasecurity.dk mx -all |
| Policy | Record (fbr.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:86.48.66.42 ip4:109.238.54.175 ip4:109.238.54.52 ip4:91.102.88.131 ip4:167.89.108.1 ip4:167.89.108.13 ip4:167.89.92.35 include:spf.protection.outlook.com include:_spf.centerasecurity.dk mx -all |
| Policy | Record (_dmarc.fbr.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:655c9c451da1a@dmarc.centerasecurity.com; |
| www CNAME | fbr.dk (all on fbr.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026072801 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 18:46:42 | 662ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-27 14:13:58 | 1572ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-23 13:26:31 | 899ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-21 22:49:46 | 1448ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-01 19:59:29 | 2760ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-01 19:20:54 | 1497ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-29 10:09:16 shown | 1256ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-17 09:32:55 | 3180ms | 2 NS 1 A 3 MX | 🔒 Secure |