kctu.dk
Last scanned: 2026-09-04 05:21:41  ·  346ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   33ms
NameserverIP addressesPTRASN / ISP
ns.efif.dk 195.254.168.23 ns.efif.dk AS51073 Aarhus Business College
ns2.efif.dk 195.254.168.12 ns2.efif.dk AS51073 Aarhus Business College
ns3.efif.dk 20.23.170.35 — AS8075 Microsoft Corporation
🌍 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 Records3 records   90ms
TXT Record
admin.cafs.dk
cafs.dk
Maskinmesterskolen Kbh
✉️ 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)
🔐 DNSSEC102ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2021030926
Primary NS (MNAME)ns.efif.dk
Responsible (RNAME)dns-zc@efif.dk
Refresh14400s
Retry3600s
Expire2419200s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
33ms
A
28ms
MX
33ms
AAAA
33ms
TXT
90ms
CAA
26ms
HTTPS
32ms
TLSA
14ms
SOA
0ms
MTA-STS
40ms
DNSSEC
102ms
SRV
37ms
Total
346ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-04 05:21:41 346ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-30 11:09:08 391ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-25 05:52:16 9945ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-19 01:23:17 2845ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-17 05:13:54 9607ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-14 01:54:19 2385ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-10 14:45:37 4620ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-09 13:20:56 8565ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-08 02:14:06 2515ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-06 03:14:54 523ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-26 20:32:59 6426ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-22 17:43:32 13387ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-16 02:31:39 466ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-11 01:28:04 538ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-09 04:14:11 16731ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-04 21:49:15 4727ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-29 11:38:11 378ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-28 03:18:24 1053ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-24 05:25:17 1049ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-20 13:07:50 5365ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-17 12:07:04 606ms 3 NS 0 A 0 MX 🔒 Secure View
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