sub.dk
Last scanned: 2026-07-20 20:09:50  ·  543ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   55ms
NameserverIP addressesPTRASN / ISP
ns1.centrum.dk 213.5.39.156 213-5-39-156.static.ip.bodata.dk AS49974 Bo data ApS
ns2.centrum.dk 80.209.94.234 80.209.94.234.static.fibianet.dk AS44869 FIBIA P/S
🌍 A Records1 records   57ms
IPTTLPTRASNISP / OrgCIDRCountryCity
213.5.39.156 3600s 213-5-39-156.static.ip.bodata.dk AS49974 Bo data ApS 213.5.32.0/21 🇩🇰 Denmark Vildbjerg
📧 MX Records1 records   53ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.sub.dk 213.5.39.167 mail.centrum.dk AS49974 Bo data ApS
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   188ms
TXT Record
v=spf1 mx a ~all
✉️ SPF
PolicyRecord (sub.dk)
~all (soft fail) v=spf1 mx a ~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 / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC137ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2020060102
Primary NS (MNAME)ns1.centrum.dk
Responsible (RNAME)gsig@centrum.dk
Refresh7200s
Retry540s
Expire604800s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
55ms
A
57ms
MX
53ms
AAAA
51ms
TXT
188ms
CAA
55ms
HTTPS
51ms
TLSA
73ms
SOA
0ms
MTA-STS
117ms
DNSSEC
137ms
SRV
104ms
Total
543ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-20 20:09:50 543ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-19 03:23:29 65535ms 2 NS 0 A 0 MX ❓ Unknown View
2026-06-27 11:22:18 485ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-22 01:28:04 556ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 13:15:43 518ms 2 NS 1 A 1 MX 🔓 Insecure View
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