cfak.dk
📜 Historical scan 2026-07-23 00:42:00  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   1611ms
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   3280ms
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)
🔐 DNSSEC1623ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2021030875
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
1611ms
A
53ms
MX
1611ms
AAAA
54ms
TXT
3280ms
CAA
58ms
HTTPS
86ms
TLSA
110ms
SOA
0ms
MTA-STS
99ms
DNSSEC
1623ms
SRV
1581ms
Total
3755ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-04 02:02:24 328ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-27 10:11:25 2558ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-26 10:08:31 551ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-24 16:03:39 2331ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-22 10:27:39 2276ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-16 22:44:00 2612ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-10 16:06:45 1526ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-07 00:08:28 7177ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-04 13:36:07 6487ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-24 01:18:38 3780ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-23 00:42:00 3755ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-18 09:03:41 9433ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-17 04:42:08 9518ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-08 12:20:06 933ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-04 21:41:34 2290ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-03 15:22:28 3299ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-25 23:13:43 426ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-21 22:36:07 407ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-19 08:36:11 763ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-16 20:10:21 386ms 3 NS 0 A 0 MX 🔒 Secure View
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