citm.dk
📜 Historical scan 2026-07-30 15:30:42  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   130ms
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   315ms
TXT Record
\195\133rhus K\195\184bmandsskole
✉️ 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)
🔐 DNSSEC320ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2010071880
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
130ms
A
227ms
MX
231ms
AAAA
150ms
TXT
315ms
CAA
175ms
HTTPS
218ms
TLSA
18ms
SOA
0ms
MTA-STS
215ms
DNSSEC
320ms
SRV
223ms
Total
801ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 12:37:38 535ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-23 22:00:39 2546ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-21 21:20:36 5717ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-16 11:24:29 3383ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-15 09:04:09 10054ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-10 17:28:00 493ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-09 09:11:19 5592ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-06 09:59:59 4575ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-30 15:30:42 801ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-29 06:58:55 4510ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-24 03:20:56 8566ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-22 00:53:07 1984ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-19 03:25:19 9324ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-14 08:32:31 436ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-08 20:18:12 721ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-04 21:20:06 8590ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-01 10:41:55 434ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-25 21:39:42 434ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-21 23:03:04 908ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-21 15:09:43 920ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-20 22:30:51 751ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-16 20:55:41 504ms 3 NS 0 A 0 MX 🔒 Secure View
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