ct-i-undervisningen.dk
Last scanned: 2026-08-27 18:39:03  ·  388ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   30ms
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   105ms
TXT Record
google-site-verification=gBjZUyiFvGtjSnmygQiMTBF5-FBUDB8QUfv0TKtYf80
✉️ 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)
🔐 DNSSEC109ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2019012493
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
30ms
A
29ms
MX
27ms
AAAA
31ms
TXT
105ms
CAA
33ms
HTTPS
24ms
TLSA
18ms
SOA
0ms
MTA-STS
49ms
DNSSEC
109ms
SRV
37ms
Total
388ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 18:39:03 388ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-24 19:32:48 637ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-22 11:28:34 2814ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-17 02:11:34 2015ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-15 06:43:18 2900ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-10 03:45:41 1683ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-06 05:27:24 6193ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-28 10:59:17 13564ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-24 06:29:14 2154ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-22 01:28:09 2081ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-19 10:43:27 9412ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-15 10:42:02 686ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-08 15:51:50 8765ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-04 16:39:47 2270ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-03 16:03:19 399ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-28 14:19:47 403ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-25 03:26:05 563ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-24 01:51:41 14239ms 0 NS 0 A 0 MX ⚠️ Bogus View
2026-06-20 16:32:53 579ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-19 00:33:53 9234ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-16 23:05:08 400ms 3 NS 0 A 0 MX 🔒 Secure View
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