tdu.dk
Last scanned: 2026-07-22 03:49:19  ·  5094ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   29ms
NameserverIP addressesPTRASN / ISP
ns1auth.tdu.dk 80.63.62.13 ns1auth.tdu.dk AS3292 TDC Holding A/S
ns2auth.tdu.dk 80.63.62.22 ns2auth.tdu.dk AS3292 TDC Holding A/S
🌍 A Records
🌍
No A records found
📧 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   336ms
TXT Record
DNS admin: Kristen Nielsen, Teledanmark udvikling, krn@tdu.dk, tlf +45 66 630735 / +45 40 466221
✉️ 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)
🔐 DNSSEC277ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset
🏷️ SOA25ms
FieldValue
Serial2024022000
Primary NS (MNAME)ns1auth.tdu.dk
Responsible (RNAME)hostmaster@tdu.dk
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
29ms
A
28ms
MX
31ms
AAAA
28ms
TXT
336ms
CAA
30ms
HTTPS
38ms
TLSA
96ms
SOA
25ms
MTA-STS
57ms
DNSSEC
277ms
SRV
690ms
Total
5094ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-22 03:49:19 5094ms 2 NS 0 A 0 MX 🔓 Insecure View
2026-06-17 12:18:18 701ms 2 NS 0 A 0 MX 🔓 Insecure View
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