sidetester.dk
📜 Historical scan 2026-06-20 21:36:50  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   204ms
NameserverIP addressesPTRASN / ISP
ns1.c-system.dk 49.12.60.90 ns1.c-system.dk AS24940 Hetzner Online GmbH
ns2.c-system.dk 49.12.60.94 ns2.c-system.dk AS24940 Hetzner Online GmbH
ns3.c-system.dk 37.27.223.112 monitor.itout.dk AS24940 Hetzner Online GmbH
🌍 A Records1 records   126ms
IPTTLPTRASNISP / OrgCIDRCountryCity
49.12.60.83 38400s web01.c-system.dk AS24940 Hetzner Online GmbH 49.12.0.0/15 🇩🇪 Germany —
📧 MX Records1 records   87ms
PriorityTTLMail ServerIP addressesPTRASN
10 38400s mail.sidetester.dk 91.250.96.48 lvps91-250-96-48.dedicated.hosteurope.de AS8972 Host Europe GmbH
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   249ms
TXT Record
v=spf1 a mx a:admin.c-system.dk a:mailgw1.c-system.dk a:mailgw2.c-system.dk -all
✉️ SPF
PolicyRecord (sidetester.dk)
-all (hard fail) v=spf1 a mx a:admin.c-system.dk a:mailgw1.c-system.dk a:mailgw2.c-system.dk -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)
🔐 DNSSEC120ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA69ms
FieldValue
Serial2018061214
Primary NS (MNAME)ns1.c-system.dk
Responsible (RNAME)admin@c-system.dk
Refresh10800s
Retry3600s
Expire1309600s
Minimum (neg-cache TTL)38400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
204ms
A
126ms
MX
87ms
AAAA
73ms
TXT
249ms
CAA
70ms
HTTPS
92ms
TLSA
83ms
SOA
69ms
MTA-STS
104ms
DNSSEC
120ms
SRV
214ms
Total
594ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-02 00:17:16 9557ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-28 10:48:41 1723ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-26 06:26:16 1633ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-07-02 11:02:31 1178ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-20 21:36:50 594ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 13:55:21 1864ms 3 NS 1 A 1 MX 🔓 Insecure View
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