fb4b.dk
📜 Historical scan 2026-06-17 09:32:34  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   144ms
NameserverIP addressesPTRASN / ISP
ns01.one.com — — —
ns02.one.com — — —
🌍 A Records1 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 Records4 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::/32 🇩🇰 Denmark Copenhagen
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 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
🔗 TLSA / DANE4 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…
🔐 DNSSEC314ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA175ms
FieldValue
Serial2026060802
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 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
2026-08-09 16:59:37 1019ms 2 NS 1 A 4 MX 🔒 Secure View
2026-08-08 01:48:22 1152ms 2 NS 1 A 4 MX 🔒 Secure View
2026-07-01 05:46:30 786ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-29 20:25:04 924ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-17 09:32:34 2253ms 2 NS 1 A 4 MX 🔒 Secure View
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