fb4b.dk

📜 Historical scan 2026-07-01 05:46:30  ·  ← 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   44ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S

🌍 A Records#

1 records   32ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.213.129 3600s webcluster1.webpod14-cph3.one.com AS51468 One.com A/S 46.30.208.0/21 🇩🇰 Denmark Copenhagen

📧 MX Records#

4 records   32ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.pub.mailpod11-cph3.one.com 104.37.34.230 mx1.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx2.pub.mailpod11-cph3.one.com 104.37.34.231 mx2.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx3.pub.mailpod11-cph3.one.com 104.37.34.232 mx3.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx4.pub.mailpod11-cph3.one.com 104.37.34.233 mx4.pub.mailpod11-cph3.one.com AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover46.30.213.129
🔶 Autoconfig46.30.213.129

🔷 AAAA Records (IPv6)#

1 records   36ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a02:2350:5:10c:c:9956:647f:1013 3600s — 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   208ms
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#

8 records   66ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 068A81EDC98C58D5D494EDF2924D5F50…
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.mx2.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx3.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 068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx4.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 068A81EDC98C58D5D494EDF2924D5F50…

🔐 DNSSEC#

55ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

30ms
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
44ms
A
32ms
MX
32ms
AAAA
36ms
TXT
208ms
CAA
31ms
HTTPS
31ms
TLSA
66ms
SOA
30ms
MTA-STS
44ms
DNSSEC
55ms
SRV
65ms
Total
786ms

🕐 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 shown 786ms 2 NS 1 A 4 MX 🔒 Secure
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