dusek.dk
Last scanned: 2026-06-21 20:43:29  ·  2129ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   39ms
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 Records1 records   51ms
IPTTLPTRASNISP / OrgCIDRCountryCity
37.9.175.212 600s — AS51013 WebSupport s.r.o. 37.9.168.0/21 🇸🇰 Slovakia —
📧 MX Records2 records   80ms
PriorityTTLMail ServerIP addressesPTRASN
10 600s mx10.active24.cz 2a00:4b40:aaaa:2101:45:13:137:85
45.13.137.85		 —
mx10.active24.cz		 AS51013 WebSupport s.r.o.
AS51013 WebSupport s.r.o.
100 600s mx20.active24.cz 2a00:4b40:aaaa:2101:45:13:137:86
45.13.137.86		 —
mx20.active24.cz		 AS51013 WebSupport s.r.o.
AS51013 WebSupport s.r.o.
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover37.9.175.212
🔶 Autoconfig37.9.175.212
🔷 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)
🔐 DNSSEC112ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer
🏷️ SOA44ms
FieldValue
Serial2025121712
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
39ms
A
51ms
MX
80ms
AAAA
49ms
TXT
219ms
CAA
39ms
HTTPS
65ms
TLSA
121ms
SOA
44ms
MTA-STS
44ms
DNSSEC
112ms
SRV
107ms
Total
2129ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-21 20:43:29 2129ms 3 NS 1 A 2 MX 🔓 Insecure View
2026-06-17 05:15:06 1560ms 3 NS 1 A 2 MX 🔓 Insecure View
2026-06-17 05:10:05 12297ms 3 NS 1 A 2 MX 🔓 Insecure View
2026-06-17 05:06:39 645ms 3 NS 1 A 2 MX 🔓 Insecure View
2026-06-17 05:00:17 2826ms 3 NS 1 A 2 MX 🔓 Insecure View
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