c3a.dk
📜 Historical scan 2026-06-16 18:50:55  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   52ms
NameserverIP addressesPTRASN / ISP
dns01.dipcon.com — — —
dns02.ports.se — — —
dns03.ports.se — — —
dns04.ports.net — — —
🌍 A Records
🌍
No A records found
📧 MX Records2 records   62ms
PriorityTTLMail ServerIP addressesPTRASN
10 — de-smtp-inbound-1.mimecast.com 194.104.108.22
194.104.108.22
194.104.110.22
194.104.110.22		 de-smtp-inbound-1.mimecast.com
de-smtp-inbound-2.mimecast.com
de-smtp-inbound-1.mimecast.com
de-smtp-inbound-2.mimecast.com		 AS39588 Mimecast Services Limited
AS39588 Mimecast Services Limited
AS39588 Mimecast Services Limited
AS39588 Mimecast Services Limited
20 — de-smtp-inbound-2.mimecast.com 194.104.108.22
194.104.108.22
194.104.110.22
194.104.110.22		 de-smtp-inbound-1.mimecast.com
de-smtp-inbound-2.mimecast.com
de-smtp-inbound-1.mimecast.com
de-smtp-inbound-2.mimecast.com		 AS39588 Mimecast Services Limited
AS39588 Mimecast Services Limited
AS39588 Mimecast Services Limited
AS39588 Mimecast Services Limited
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records
📝
No TXT records found
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 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)
🔐 DNSSEC90ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset
🏷️ SOA60ms
FieldValue
Serial2024121801
Primary NS (MNAME)dns01.dipcon.com
Responsible (RNAME)registry@ports.net
Refresh14400s
Retry3600s
Expire1814400s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
52ms
A
56ms
MX
62ms
AAAA
56ms
TXT
184ms
CAA
64ms
HTTPS
63ms
TLSA
114ms
SOA
60ms
MTA-STS
64ms
DNSSEC
90ms
SRV
0ms
Total
588ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-27 09:21:55 3030ms 4 NS 0 A 2 MX 🔓 Insecure View
2026-06-21 20:20:45 5213ms 4 NS 0 A 2 MX 🔓 Insecure View
2026-06-21 10:59:52 4542ms 4 NS 0 A 0 MX 🔓 Insecure View
2026-06-16 18:50:55 588ms 4 NS 0 A 2 MX 🔓 Insecure View
2026-06-16 18:40:32 766ms 4 NS 0 A 2 MX 🔓 Insecure View
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