duracert.dk
Last scanned: 2026-08-22 15:35:28  ·  22853ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   42ms
NameserverIP addressesPTRASN / ISP
ns0.tendenz.nl 94.124.92.13 ns0.tendenz.nl AS39704 CJ2 Hosting B.V.
ns1.tendenz.nl 94.124.91.221 ns1.tendenz.nl AS39704 CJ2 Hosting B.V.
ns2.tendenz.nl 62.221.254.70 — AS48635 Your Hosting B.V.
🌍 A Records1 records   64ms
IPTTLPTRASNISP / OrgCIDRCountryCity
136.144.154.5 900s vps07.6dmg.nl AS20857 Signet B.V. 136.144.128.0/17 🇳🇱 The Netherlands Amsterdam
📧 MX Records1 records   56ms
PriorityTTLMail ServerIP addressesPTRASN
10 900s mail.duracert.dk 136.144.154.5 vps07.6dmg.nl AS20857 Signet B.V.
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover136.144.154.5
🔶 Autoconfig136.144.154.5
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 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)
🔐 DNSSEC9085ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA42ms
FieldValue
Serial2016070806
Primary NS (MNAME)ns0.tendenz.nl
Responsible (RNAME)hostmaster@tendenz.nl
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
42ms
A
64ms
MX
56ms
AAAA
61ms
TXT
282ms
CAA
64ms
HTTPS
63ms
TLSA
182ms
SOA
42ms
MTA-STS
90ms
DNSSEC
9085ms
SRV
98ms
Total
22853ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-22 15:35:28 22853ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-07-28 03:28:43 21491ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-07-19 17:16:25 19530ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-07-02 03:33:56 10079ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-24 16:20:35 13637ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-23 06:52:20 1111ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-23 03:27:44 1088ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-20 18:30:19 1013ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 05:19:22 17860ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 05:13:56 1354ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 05:05:52 956ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 05:01:03 5413ms 3 NS 1 A 1 MX 🔓 Insecure View
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