uddannelsescenterholstebro.dk
Last scanned: 2026-09-02 09:18:06  ·  438ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   49ms
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)
🔐 DNSSEC85ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2023100784
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
49ms
A
46ms
MX
28ms
AAAA
42ms
TXT
141ms
CAA
61ms
HTTPS
58ms
TLSA
28ms
SOA
0ms
MTA-STS
61ms
DNSSEC
85ms
SRV
82ms
Total
438ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-02 09:18:06 438ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-26 13:46:17 401ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-20 19:15:15 5549ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-18 13:11:54 2427ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-15 19:55:45 10903ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-10 04:40:31 2815ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-06 02:05:22 4613ms 3 NS 0 A 0 MX 🔒 Secure View
2026-08-01 16:27:17 8465ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-24 18:49:44 4435ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-22 14:54:27 3495ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-16 20:45:00 2173ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-15 11:09:54 465ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-12 13:36:42 575ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-08 22:00:43 1344ms 3 NS 0 A 0 MX 🔒 Secure View
2026-07-01 21:42:03 1544ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-29 13:37:19 464ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-29 07:18:07 3126ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-25 06:23:59 579ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-23 02:58:16 565ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-20 11:05:18 460ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-20 04:50:19 4471ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-18 02:57:40 523ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-18 02:57:27 4412ms 3 NS 0 A 0 MX 🔒 Secure View
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