brbj.dk is a .dk domain served by 2 nameservers (guss.ns.cloudflare.com, susan.ns.cloudflare.com). It was registered on 8 August 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.165.242.93 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mxext1.mailbox.org, mxext2.mailbox.org 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 |
|---|---|---|---|
| guss.ns.cloudflare.com | — | — | — |
| susan.ns.cloudflare.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 93.165.242.93 | — | 0x5da5f25d.static.cust.fastspeed.dk | AS3292 | TDC Holding A/S | 93.165.128.0/17 | 🇩🇰 Denmark | Aarhus |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mxext1.mailbox.org | 80.241.60.212 | mx1.mailbox.org | AS199118 Heinlein Support GmbH |
| 10 | — | mxext2.mailbox.org | 80.241.60.215 | mx2.mailbox.org | AS199118 Heinlein Support GmbH |
| 20 | — | mxext3.mailbox.org | 80.241.60.216 | mx3.mailbox.org | AS199118 Heinlein Support GmbH |
| www CNAME | brbj.dk (all on brbj.dk) → 93.165.242.93 (AS3292) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mxext1.mailbox.org | DANE-EE · SPKI · SHA-256 | 4758AF6F02DFB5DC8795FA402E77A8A0… |
| SMTP _25._tcp.mxext1.mailbox.org | DANE-EE · SPKI · SHA-256 | 996AD31D65E03F038B8EC950F6F26611… |
| SMTP _25._tcp.mxext1.mailbox.org | DANE-EE · SPKI · SHA-256 | E41CC7633029AFDBA53744D7E5FC31EF… |
| SMTP _25._tcp.mxext2.mailbox.org | DANE-EE · SPKI · SHA-256 | 996AD31D65E03F038B8EC950F6F26611… |
| SMTP _25._tcp.mxext2.mailbox.org | DANE-EE · SPKI · SHA-256 | E41CC7633029AFDBA53744D7E5FC31EF… |
| SMTP _25._tcp.mxext2.mailbox.org | DANE-EE · SPKI · SHA-256 | 4758AF6F02DFB5DC8795FA402E77A8A0… |
| SMTP _25._tcp.mxext3.mailbox.org | DANE-EE · SPKI · SHA-256 | 4758AF6F02DFB5DC8795FA402E77A8A0… |
| SMTP _25._tcp.mxext3.mailbox.org | DANE-EE · SPKI · SHA-256 | 996AD31D65E03F038B8EC950F6F26611… |
| SMTP _25._tcp.mxext3.mailbox.org | DANE-EE · SPKI · SHA-256 | E41CC7633029AFDBA53744D7E5FC31EF… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2406679278 |
| Primary NS (MNAME) | guss.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2025-08-08 |
| Expires | 2027-08-07 (294d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 16:37:13 | 1784ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-08 06:59:51 | 1298ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-04 01:21:39 | 1127ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-01 01:06:41 | 967ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-24 02:51:16 | 2296ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-03 04:29:51 | 1870ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-26 09:26:57 | 10489ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-09 22:38:23 | 1720ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-31 14:51:45 | 1751ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-17 23:35:22 | 3750ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-03 13:05:24 | 6920ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-23 21:30:01 | 3042ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-23 04:22:41 | 1173ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 00:07:28 | 3241ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-16 16:41:11 shown | 654ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-16 16:40:28 | 827ms | 2 NS 1 A 3 MX | 🔓 Insecure |