fb4b.dk

📜 Historical scan 2026-06-17 09:32:34  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fb4b.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 27 September 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.129 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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.

🖥️ Nameservers#

2 records   144ms
NameserverIP addressesPTRASN / ISP
ns01.one.com — — —
ns02.one.com — — —

🌍 A Records#

1 records   160ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.213.129 — webcluster1.webpod14-cph3.one.com AS51468 One.com A/S 46.30.208.0/21 🇩🇰 Denmark Copenhagen

📧 MX Records#

4 records   150ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx1.pub.mailpod11-cph3.one.com 104.37.34.230 mx1.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 — mx2.pub.mailpod11-cph3.one.com 104.37.34.231 mx2.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 — mx3.pub.mailpod11-cph3.one.com 104.37.34.232 mx3.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 — mx4.pub.mailpod11-cph3.one.com 104.37.34.233 mx4.pub.mailpod11-cph3.one.com AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

1 records   153ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a02:2350:5:10c:c:9956:647f:1013 — — AS51468 One.com A/S 2a02:2350:0:0:0:0:0:0/32 🇩🇰 Denmark Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   327ms
TXT Record
v=spf1 include:_custspf.one.com include:mailmailmail.net -all

✉️ SPF#

PolicyRecord (fb4b.dk)
-all (hard fail) v=spf1 include:_custspf.one.com include:mailmailmail.net -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-09-30 12:06:21
wwwAddress record (no CNAME)
WildcardYes: any name under the zone resolves
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
default — RSA · ~1024 bit below 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.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

4 records   270ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…

🔐 DNSSEC#

314ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

175ms
FieldValue
Serial2026060802
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-02 12:41:44
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2016-09-27
Expires2026-09-30 (expired)
📋 WHOIS#

⏱️ Lookup Timing#

NS
144ms
A
160ms
MX
150ms
AAAA
153ms
TXT
327ms
CAA
146ms
HTTPS
148ms
TLSA
270ms
SOA
175ms
MTA-STS
173ms
DNSSEC
314ms
SRV
0ms
Total
2253ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-25 01:49:37 349ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-23 13:37:14 388ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-21 21:56:54 109ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-20 13:07:35 324ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-19 06:22:57 572ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-18 05:36:18 120ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-17 05:26:28 225ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-16 04:01:18 351ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-15 02:12:36 221ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-14 01:11:15 298ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-12 23:58:10 223ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-11 23:37:28 231ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-10 18:47:27 90ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-09 16:46:14 110ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-08 13:53:59 213ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-07 13:47:07 123ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-06 12:53:51 122ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-05 12:24:44 214ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-04 12:15:38 249ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-03 12:11:33 1032ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-02 12:10:25 664ms 1 NS 0 A 0 MX ❓ Unknown
2026-09-30 12:06:21 843ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-09 16:59:37 1019ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-08 01:48:22 1152ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-01 05:46:30 786ms 2 NS 1 A 4 MX 🔒 Secure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone