sernet.dk
Last scanned: 2026-09-01 23:23:19  ·  774ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   53ms
NameserverIP addressesPTRASN / ISP
pns1.sernet.de 2a02:2940:0:a0d1::246
95.130.16.246		 dns.dns1.de
dns.dns1.de		 AS13246 Key-Systems GmbH
AS13246 Key-Systems GmbH
pns2.sernet.net 2a02:2940:0:a0d2::218
95.130.17.218		 dns.dns2.de
dns.dns2.de		 AS13246 Key-Systems GmbH
AS13246 Key-Systems GmbH
pns3.sernet.de 217.146.22.194
2a00:11c0:e:766::2		 dns.dns3.de
dns.dns3.de		 AS42473 Anexia Cloud Solutions GmbH
AS42473 Anexia Cloud Solutions GmbH
pns4.sernet.net 144.76.91.137
2a01:4f8:192:2187::2		 dns.dns4.de
dns.dns4.de		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
🌍 A Records1 records   55ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.199.218.8 86400s www.sernet.de AS41955 SerNet Service Network GmbH 185.199.216.0/22 🇩🇪 Germany —
📧 MX Records1 records   54ms
PriorityTTLMail ServerIP addressesPTRASN
0 86400s .  Null MX — domain accepts no email (RFC 7505)
🔷 AAAA Records (IPv6)1 records   49ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a0a:a3c0:0:d2e8::1 86400s www.sernet.de AS41955 SerNet Service Network GmbH 2a0a:a3c0:0:0:0:0:0:0/32 🇩🇪 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)
🔐 DNSSEC115ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026060901
Primary NS (MNAME)pns1.sernet.de
Responsible (RNAME)hostmaster@internetwire.de
Refresh28800s
Retry7200s
Expire604800s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
53ms
A
55ms
MX
54ms
AAAA
49ms
TXT
331ms
CAA
70ms
HTTPS
79ms
TLSA
119ms
SOA
0ms
MTA-STS
104ms
DNSSEC
115ms
SRV
112ms
Total
774ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-01 23:23:19 774ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-08-27 20:35:19 10898ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-07-03 00:48:37 10995ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-27 06:32:56 1393ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-26 23:28:14 1300ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-22 22:06:33 1150ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-18 07:55:22 1874ms 4 NS 1 A 0 MX 🔓 Insecure View
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