kotra.dk
Last scanned: 2026-09-03 17:38:03  ·  8757ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   283ms
NameserverIP addressesPTRASN / ISP
ns.kotra.or.kr 210.223.88.1 ns.kotra.or.kr AS4766 Korea Telecom
ns2.kotra.or.kr 210.223.88.2 ns2.kotra.or.kr AS4766 Korea Telecom
🌍 A Records1 records   284ms
IPTTLPTRASNISP / OrgCIDRCountryCity
125.131.31.46 43200s — AS45973 KOTRA 125.131.31.0/24 🇰🇷 South Korea —
📧 MX Records1 records   283ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s mx.spamfilter.io 46.36.212.34
46.36.212.36
46.36.212.37
46.36.212.38
89.188.78.64
89.188.78.65
89.188.78.66
94.231.106.12		 node4.spamfilter.io
node8.spamfilter.io
node6.spamfilter.io
node7.spamfilter.io
node3.spamfilter.io
node9.spamfilter.io
node10.spamfilter.io
node2.spamfilter.io		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   2069ms
TXT Record
v=spf1 include:mx.spamfilter.io -all
v=spf1 include:spf.scannet.dk -all
✉️ SPF
⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)
PolicyRecord (kotra.dk)
-all (hard fail) v=spf1 include:mx.spamfilter.io -all
-all (hard fail) v=spf1 include:spf.scannet.dk -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 / DANE1 records   1285ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.spamfilter.io DANE-EE · SPKI · SHA-256 9A25F05F2E322DABDCC9B7A06AB47A2D…
🔐 DNSSEC2059ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2023072002
Primary NS (MNAME)ns.kotra.or.kr
Responsible (RNAME)root@kotra.or.kr
Refresh1800s
Retry216s
Expire3600000s
Minimum (neg-cache TTL)43200s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
283ms
A
284ms
MX
283ms
AAAA
279ms
TXT
2069ms
CAA
278ms
HTTPS
283ms
TLSA
1285ms
SOA
0ms
MTA-STS
547ms
DNSSEC
2059ms
SRV
536ms
Total
8757ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-03 17:38:03 8757ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-27 16:05:14 9105ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-26 19:19:36 7181ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-19 23:20:29 12835ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-18 04:24:30 7720ms 2 NS 1 A 1 MX 🔓 Insecure View
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