duebaeck.dk
Last scanned: 2026-08-26 09:09:09  ·  9716ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   47ms
NameserverIP addressesPTRASN / ISP
ns.second-ns.com 213.239.204.242
2a01:4f8:0:a101::b:1		 ns.second-ns.com
ns.second-ns.com		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
ns1.your-server.de 213.133.100.102
2a01:4f8:0:1::5ddc:1		 ns1.your-server.de
ns1.your-server.de		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
ns3.second-ns.de 193.47.99.4
2001:67c:192c::add:b3		 ns3.second-ns.de
ns3.second-ns.de		 AS12337 noris network AG
AS12337 noris network AG
🌍 A Records1 records   71ms
IPTTLPTRASNISP / OrgCIDRCountryCity
78.47.54.55 7200s www384.your-server.de AS24940 Hetzner Online GmbH 78.46.0.0/15 🇩🇪 Germany Nuremberg
📧 MX Records1 records   59ms
PriorityTTLMail ServerIP addressesPTRASN
1 7200s www384.your-server.de 2a01:4f8:d0a:52ae::2
78.47.54.55		 www384.your-server.de
www384.your-server.de		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔶 Autoconfigmail.your-server.de → 78.46.5.205
🔷 AAAA Records (IPv6)1 records   51ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a01:4f8:d0a:52ae::2 7200s www384.your-server.de AS24940 Hetzner Online GmbH 2a01:4f8:0:0:0:0:0:0/31 🇩🇪 Germany —
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records2 records   108ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 100 443 mail.your-server.de
_imaps._tcp 0 100 993 mail.your-server.de
📝 TXT Records1 records   293ms
TXT Record
v=spf1 +a +mx ?all
✉️ SPF
PolicyRecord (duebaeck.dk)
?all (neutral) v=spf1 +a +mx ?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)
🔐 DNSSEC9087ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026011500
Primary NS (MNAME)ns1.your-server.de
Responsible (RNAME)postmaster@your-server.de
Refresh86400s
Retry10800s
Expire3600000s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
47ms
A
71ms
MX
59ms
AAAA
51ms
TXT
293ms
CAA
68ms
HTTPS
65ms
TLSA
204ms
SOA
0ms
MTA-STS
89ms
DNSSEC
9087ms
SRV
108ms
Total
9716ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 09:09:09 9716ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-25 22:57:55 1010ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-24 10:00:30 1153ms 3 NS 1 A 1 MX ❓ Unknown View
2026-06-21 15:39:38 804ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-20 19:17:43 1168ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 04:56:04 653ms 3 NS 1 A 1 MX 🔓 Insecure View
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