clsystem.dk
Last scanned: 2026-08-27 13:39:29  ·  461ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   50ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
🌍 A Records
🌍
No A records found
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   70ms
ServicePriorityWeightPortTarget
_sip._udp 10 0 5060 sipm.clsystem.dk
📝 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)
🔐 DNSSEC92ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2020072990
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
50ms
A
72ms
MX
34ms
AAAA
42ms
TXT
157ms
CAA
47ms
HTTPS
60ms
TLSA
28ms
SOA
0ms
MTA-STS
75ms
DNSSEC
92ms
SRV
70ms
Total
461ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 13:39:29 461ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-25 14:55:20 350ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-22 19:45:38 1187ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-21 21:13:52 373ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-16 21:25:12 4364ms 3 NS 0 A 0 MX 🔒 Secure View
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