holdkursen.dk
Last scanned: 2026-08-26 06:44:38  ·  4394ms total
🧟 Lame delegation ⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   420ms
NameserverIP addressesPTRASN / ISP
ns1.netfirms.com 162.159.24.252 — AS13335 Cloudflare, Inc.
ns2.netfirms.com 162.159.25.208 — AS13335 Cloudflare, Inc.
🌍 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)
🔐 DNSSEC2058ms
CheckResult
Validation Status❓ Unknown
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: failure
🏷️ SOA
✗ No SOA record found
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
420ms
A
323ms
MX
419ms
AAAA
420ms
TXT
2331ms
CAA
416ms
HTTPS
428ms
TLSA
311ms
SOA
32ms
MTA-STS
520ms
DNSSEC
2058ms
SRV
625ms
Total
4394ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 06:44:38 4394ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-23 17:49:50 2776ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-22 16:09:21 3464ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-21 15:43:39 4607ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-20 15:29:08 4744ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-19 12:15:58 17756ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-18 12:06:16 20804ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-16 12:22:58 24737ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-15 09:30:55 4089ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-12 17:25:14 23334ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-11 05:04:12 25089ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-10 03:24:15 22901ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-07 14:59:18 10527ms 2 NS 0 A 0 MX ❓ Unknown View
2026-08-06 09:10:37 5297ms 2 NS 0 A 0 MX ❓ Unknown View
2026-07-30 07:34:18 38112ms 2 NS 0 A 0 MX ❓ Unknown View
2026-07-28 04:42:19 32137ms 2 NS 0 A 0 MX ❓ Unknown View
2026-07-27 04:31:29 4857ms 2 NS 0 A 0 MX ❓ Unknown View
2026-07-26 04:14:16 5836ms 2 NS 0 A 0 MX ❓ Unknown View
2026-07-25 03:40:53 5284ms 2 NS 0 A 0 MX ❓ Unknown View
2026-07-24 03:08:10 12917ms 2 NS 0 A 0 MX ❓ Unknown View
2026-07-23 00:14:45 4462ms 2 NS 0 A 0 MX ❓ Unknown View
2026-07-20 22:10:26 5406ms 2 NS 0 A 0 MX ❓ Unknown View
2026-07-19 20:41:18 5672ms 2 NS 0 A 0 MX ❓ Unknown View
2026-07-18 11:27:50 30780ms 2 NS 0 A 0 MX ❓ Unknown View
2026-07-17 01:46:50 5202ms 2 NS 0 A 0 MX ❓ Unknown View
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