doerner.dk
📜 Historical scan 2026-06-27 07:25:18  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   42ms
NameserverIP addressesPTRASN / ISP
ns1.domaindiscount24.net 193.227.117.34
2a04:2b00:14cc::34		 ns1.domaindiscount24.net
ns1.monikerdns.net		 AS1921 ipcom GmbH
AS1921 ipcom GmbH
ns2.domaindiscount24.net 194.50.187.34
2a04:2b00:14dd::34		 ns2.domaindiscount24.net
ns34.j.centralnic-dns.com		 AS207021 ipcom GmbH
AS207021 ipcom GmbH
ns3.domaindiscount24.net 194.0.182.34
2a04:2b00:14ee::34		 ns3.domaindiscount24.net
ns34.k.centralnic-dns.com		 AS1921 ipcom GmbH
AS1921 ipcom GmbH
🌍 A Records2 records   54ms
IPTTLPTRASNISP / OrgCIDRCountryCity
5.22.145.121 600s relay.mail-forwarder.io AS16509 Amazon.com, Inc. 5.22.145.0/24 🇩🇪 Germany —
5.22.145.16 600s relay.mail-forwarder.io AS16509 Amazon.com, Inc. 5.22.145.0/24 🇩🇪 Germany —
📧 MX Records1 records   55ms
PriorityTTLMail ServerIP addressesPTRASN
10 28800s mail.doerner.de 5.7.248.130 — AS6805 Telefonica Germany
🔷 AAAA Records (IPv6)2 records   39ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a00:18e0:5:2:7577:4e4d:413b:f507 600s relay.mail-forwarder.io AS16509 Amazon.com, Inc. 2a00:18e0:5:0:0:0:0:0/48 🇩🇪 Germany —
2a00:18e0:5:3:dfe2:c743:85aa:61bc 600s relay.mail-forwarder.io AS16509 Amazon.com, Inc. 2a00:18e0:5:0:0:0:0:0/48 🇩🇪 Germany —
🔐 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)
🔐 DNSSEC81ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA64ms
FieldValue
Serial2021102700
Primary NS (MNAME)ns1.domaindiscount24.net
Responsible (RNAME)tech@key-systems.net
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)28800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
42ms
A
54ms
MX
55ms
AAAA
39ms
TXT
259ms
CAA
37ms
HTTPS
57ms
TLSA
167ms
SOA
64ms
MTA-STS
62ms
DNSSEC
81ms
SRV
73ms
Total
976ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-02 11:16:56 2234ms 3 NS 2 A 1 MX 🔓 Insecure View
2026-06-27 07:25:18 976ms 3 NS 2 A 1 MX 🔓 Insecure View
2026-06-17 04:27:39 17288ms 3 NS 2 A 1 MX 🔓 Insecure View
2026-06-17 04:12:59 475ms 3 NS 2 A 1 MX 🔓 Insecure View
2026-06-17 04:07:39 1751ms 3 NS 2 A 1 MX 🔓 Insecure View
2026-06-17 04:01:07 701ms 3 NS 2 A 1 MX 🔓 Insecure View
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