dsvu-online.dk
Last scanned: 2026-08-26 16:42:12  ·  9474ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   42ms
NameserverIP addressesPTRASN / ISP
ns.xtracon.dk 178.72.16.21 — AS3342 Cibicom A/S
ns2.xtracon.dk 178.72.22.92 — AS3342 Cibicom A/S
🌍 A Records1 records   65ms
IPTTLPTRASNISP / OrgCIDRCountryCity
178.72.16.23 300s — AS3342 Cibicom A/S 178.72.16.0/21 🇩🇰 Denmark —
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   167ms
TXT Record
v=spf include:_spf.xtracon.dk ~all
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 DMARC
PolicyRecord (_dmarc.dsvu-online.dk)
p=none (monitor only) v=DMARC1; p=none;
📬 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)
🔐 DNSSEC9113ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026050701
Primary NS (MNAME)ns.xtracon.dk
Responsible (RNAME)svenning@xtracon.dk
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)38400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
42ms
A
65ms
MX
32ms
AAAA
52ms
TXT
167ms
CAA
66ms
HTTPS
55ms
TLSA
48ms
SOA
0ms
MTA-STS
70ms
DNSSEC
9113ms
SRV
73ms
Total
9474ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 16:42:12 9474ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-07-02 00:38:45 437ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-06-17 04:50:10 402ms 2 NS 1 A 0 MX 🔓 Insecure View
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