syskolen.dk
Last scanned: 2026-08-30 06:42:20  ·  770ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   95ms
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 Records
📝
No TXT records found
✉️ 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)
🔐 DNSSEC273ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2019012753
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
95ms
A
77ms
MX
119ms
AAAA
89ms
TXT
304ms
CAA
88ms
HTTPS
82ms
TLSA
31ms
SOA
0ms
MTA-STS
138ms
DNSSEC
273ms
SRV
122ms
Total
770ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-30 06:42:20 770ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-26 14:29:51 410ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-24 19:18:34 2345ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-23 19:13:42 1423ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-20 12:48:33 4654ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-19 07:00:08 3299ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-16 15:03:06 4551ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-14 20:51:38 4448ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-13 07:22:31 558ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-09 04:09:56 4561ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-03 06:49:34 6381ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-27 15:11:28 8542ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-25 13:19:57 4429ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-22 10:00:08 11523ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-15 14:22:29 2361ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-13 03:52:12 520ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-10 05:28:04 2438ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-05 00:18:58 576ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-02 14:46:44 481ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-26 01:18:40 729ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-20 04:34:53 4406ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-17 13:00:08 5131ms 3 NS 0 A 0 MX 🔒 Secure View
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