imt3.dk
Last scanned: 2026-09-08 18:23:51  ·  1139ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   109ms
🌍 A Records1 records   117ms
📧 MX Records1 records   105ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverwebapp-2181.eu.pythonanywhere.com → 18.194.5.49
🔶 Autoconfigwebapp-2181.eu.pythonanywhere.com → 18.194.5.49
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   405ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (imt3.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.imt3.dk)
p=reject v=DMARC1; p=reject; rua=mailto:66275eea212c7@dmarc-dk.centerasecurity.com;
📬 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
🔏 ACME Challenge
TypeNameValue
CNAME _acme-challenge.imt3.dk webapp-2181.eu.pythonanywhere.com
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC202ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026090801
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
109ms
A
117ms
MX
105ms
AAAA
102ms
TXT
405ms
CAA
113ms
HTTPS
183ms
TLSA
176ms
SOA
0ms
MTA-STS
446ms
DNSSEC
202ms
SRV
438ms
Total
1139ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-08 18:23:51 1139ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-28 06:21:37 700ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-10 12:13:26 645ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-14 10:49:48 8869ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-28 20:49:42 690ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-27 04:01:28 1106ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-26 21:15:34 583ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-23 20:51:44 1058ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-23 03:20:22 1126ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-21 12:29:45 1121ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-21 09:20:49 1190ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 14:30:29 358ms 0 NS 0 A 0 MX ❓ Unknown View
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