b4net.dk is a .dk domain served by 2 nameservers (perla.ns.cloudflare.com, wells.ns.cloudflare.com). It was registered on 18 January 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.96.183.34 is hosted by BornFiber Service Provider ApS (AS24800) in Denmark. Mail is handled by bf.b4net.dk, ovh.b4net.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 185.96.183.34 | 300s | server.b4net.dk | AS24800 | BornFiber Service Provider ApS | 185.96.180.0/22 | 🇩🇰 Denmark | Kongens Lyngby |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | bf.b4net.dk | 185.96.183.34 | server.b4net.dk | AS24800 BornFiber Service Provider ApS |
| 20 | 300s | ovh.b4net.dk | 51.68.173.215 | ovh.b4net.dk | AS16276 OVH SAS |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sip._tcp | 0 | 0 | 5060 | sip01.iptel.org |
| _sip._udp | 0 | 0 | 5060 | sip01.iptel.org |
| TXT Record |
|---|
| google-site-verification=sz2BXB1GTMl0K3y3m9dcgkLt83gKaUydgvi_4hMAvAA |
| v=spf1 ip4:185.96.183.34 ip4:83.88.251.22 ip4:51.68.173.215 ip4:137.74.115.1 ip6:2001:41d0:701:1100::2d36 ip6:2001:41d0:302:2100::220b a mx -all |
| Policy | Record (b4net.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:185.96.183.34 ip4:83.88.251.22 ip4:51.68.173.215 ip4:137.74.115.1 ip6:2001:41d0:701:1100::2d36 ip6:2001:41d0:302:2100::220b a mx -all |
| Policy | Record (_dmarc.b4net.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:postmaster@b4net.dk; ruf=mailto:postmaster@b4net.dk |
| www CNAME | b4net.dk (all on b4net.dk) → 185.96.183.34 (AS24800) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2417403212 |
| Primary NS (MNAME) | perla.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 | 2002-01-18 |
| Expires | 2033-03-31 (2357d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 16:03:12 shown | 778ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-07 03:29:58 | 2251ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-29 00:05:13 | 943ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-26 23:20:56 | 1280ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-08 21:12:49 | 2335ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-01 02:31:50 | 953ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-26 10:36:18 | 1452ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-15 09:31:04 | 4782ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-10 09:55:53 | 1128ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-06 14:00:07 | 1655ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-17 13:29:08 | 16963ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-26 08:11:12 | 993ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-25 23:00:03 | 1365ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-23 06:45:51 | 1880ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 13:57:33 | 847ms | 2 NS 1 A 2 MX | 🔒 Secure |