extern-it.dk
Last scanned: 2026-06-27 04:43:38  ·  1268ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   65ms
NameserverIP addressesPTRASN / ISP
ns1.c-system.dk 49.12.60.90 ns1.c-system.dk AS24940 Hetzner Online GmbH
ns2.c-system.dk 49.12.60.94 ns2.c-system.dk AS24940 Hetzner Online GmbH
ns3.c-system.dk 37.27.223.112 monitor.itout.dk AS24940 Hetzner Online GmbH
🌍 A Records1 records   66ms
IPTTLPTRASNISP / OrgCIDRCountryCity
49.12.60.83 38400s web01.c-system.dk AS24940 Hetzner Online GmbH 49.12.0.0/15 🇩🇪 Germany —
📧 MX Records1 records   48ms
PriorityTTLMail ServerIP addressesPTRASN
0 38400s extern-it.dk.mail.protection.outlook.com — — —
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.40
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   115ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 100 1 5061 sipfed.online.lync.com
📝 TXT Records1 records   299ms
TXT Record
v=spf1 a:mailgw1.c-system.dk a:web01.c-system.dk include:spf.protection.outlook.com -all
✉️ SPF
PolicyRecord (extern-it.dk)
-all (hard fail) v=spf1 a:mailgw1.c-system.dk a:web01.c-system.dk include:spf.protection.outlook.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 / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC146ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA62ms
FieldValue
Serial1586853043
Primary NS (MNAME)ns1.c-system.dk
Responsible (RNAME)hostmaster@c-system.dk
Refresh14400s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)38400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
65ms
A
66ms
MX
48ms
AAAA
54ms
TXT
299ms
CAA
63ms
HTTPS
52ms
TLSA
656ms
SOA
62ms
MTA-STS
92ms
DNSSEC
146ms
SRV
115ms
Total
1268ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-27 04:43:38 1268ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-21 17:26:59 1117ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-20 18:23:17 1995ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-20 01:29:10 4462ms 3 NS 1 A 1 MX ⚠️ Bogus View
2026-06-17 09:09:47 2011ms 3 NS 1 A 1 MX 🔓 Insecure View
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