opstreng.dk
Last scanned: 2026-07-02 09:50:15  ·  2525ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   71ms
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   67ms
IPTTLPTRASNISP / OrgCIDRCountryCity
78.46.220.197 60s www577.your-server.de AS24940 Hetzner Online GmbH 78.46.0.0/15 🇩🇪 Germany Nuremberg
📧 MX Records1 records   68ms
PriorityTTLMail ServerIP addressesPTRASN
10 60s www577.your-server.de 2a01:4f8:d0a:43e4::2
78.46.220.197		 www577.your-server.de
www577.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   73ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a01:4f8:d0a:43e4::2 60s www577.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   121ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 100 443 mail.your-server.de
_imaps._tcp 0 100 993 mail.your-server.de
📝 TXT Records1 records   259ms
TXT Record
v=spf1 a mx -all
✉️ SPF
PolicyRecord (opstreng.dk)
-all (hard fail) v=spf1 a mx -all
📨 DMARC
PolicyRecord (_dmarc.opstreng.dk)
p=reject v=DMARC1;p=reject;sp=none;pct=100;rua=mailto:reports@opstreng.dk;ruf=mailto:reports@opstreng.dk;adkim=r;aspf=r;
📬 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)
🔐 DNSSEC1311ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA69ms
FieldValue
Serial2026042900
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
71ms
A
67ms
MX
68ms
AAAA
73ms
TXT
259ms
CAA
62ms
HTTPS
80ms
TLSA
206ms
SOA
69ms
MTA-STS
98ms
DNSSEC
1311ms
SRV
121ms
Total
2525ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-02 09:50:15 2525ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-26 04:25:31 1136ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-23 03:46:08 1170ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-18 00:38:15 1006ms 3 NS 1 A 1 MX 🔓 Insecure View
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