cmuc.dk
📜 Historical scan 2026-07-18 06:25:32  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   77ms
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 Records1 records   319ms
TXT Record
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)
🔐 DNSSEC223ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2021030874
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
77ms
A
76ms
MX
87ms
AAAA
89ms
TXT
319ms
CAA
78ms
HTTPS
77ms
TLSA
55ms
SOA
0ms
MTA-STS
267ms
DNSSEC
223ms
SRV
885ms
Total
8160ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-04 13:09:17 2808ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-31 16:04:03 595ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-27 12:22:33 932ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-24 08:17:05 6401ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-22 01:22:52 2332ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-16 06:30:34 18794ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-10 03:59:37 2565ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-07 15:56:37 561ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-06 12:47:52 554ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-02 19:05:24 4581ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-01 01:58:38 2675ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-24 16:44:30 2366ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-21 09:11:53 4498ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-18 06:25:32 8160ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-13 22:31:51 584ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-08 15:56:47 730ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-04 19:50:06 2580ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-01 13:03:31 378ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-29 12:45:42 462ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-26 11:03:09 457ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-24 18:45:57 431ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-22 16:11:12 1004ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-20 21:03:53 663ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-18 14:44:22 5180ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-17 00:26:12 44431ms 3 NS 0 A 0 MX 🔒 Secure View
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