4bb.dk
📜 Historical scan 2026-06-16 12:37:33  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   110ms
NameserverIP addressesPTRASN / ISP
ns01.one.com — — —
ns02.one.com — — —
🌍 A Records1 records   104ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.215.122 — webcluster2.webpod16-cph3.one.com AS51468 One.com A/S 46.30.208.0/21 🇩🇰 Denmark —
📧 MX Records3 records   102ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx1.pub.mailpod8-cph3.one.com 185.164.14.102 mx1.pub.mailpod8-cph3.one.com AS51468 One.com A/S
10 — mx2.pub.mailpod8-cph3.one.com 185.164.14.103 mx2.pub.mailpod8-cph3.one.com AS51468 One.com A/S
10 — mx3.pub.mailpod8-cph3.one.com 185.164.14.104 mx3.pub.mailpod8-cph3.one.com AS51468 One.com A/S
🔷 AAAA Records (IPv6)1 records   103ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a02:2350:5:111:80d7:c12e:8ab5:b90f — — AS51468 One.com A/S 2a02:2350::/32 🇩🇰 Denmark Copenhagen
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   203ms
TXT Record
v=spf1 include:_custspf.one.com -all
✉️ SPF
PolicyRecord (4bb.dk)
-all (hard fail) v=spf1 include:_custspf.one.com -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 / DANE3 records   89ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod8-cph3.one.com DANE-EE · SPKI · SHA-256 026A3DCAF3804B72DA8C105B5ADC0C7D…
SMTP _25._tcp.mx2.pub.mailpod8-cph3.one.com DANE-EE · SPKI · SHA-256 026A3DCAF3804B72DA8C105B5ADC0C7D…
SMTP _25._tcp.mx3.pub.mailpod8-cph3.one.com DANE-EE · SPKI · SHA-256 026A3DCAF3804B72DA8C105B5ADC0C7D…
🔐 DNSSEC226ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA99ms
FieldValue
Serial2026061305
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
110ms
A
104ms
MX
102ms
AAAA
103ms
TXT
203ms
CAA
101ms
HTTPS
91ms
TLSA
89ms
SOA
99ms
MTA-STS
38ms
DNSSEC
226ms
SRV
0ms
Total
840ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-02 08:51:29 726ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-31 17:33:02 829ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-26 09:43:07 621ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-25 14:52:23 1641ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-15 04:06:24 8884ms 2 NS 1 A 3 MX 🔒 Secure View
2026-07-25 02:37:48 17018ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-24 05:11:14 1339ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-20 17:27:10 697ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-16 12:37:33 840ms 2 NS 1 A 3 MX 🔒 Secure View
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