4200.dk
Last scanned: 2026-07-06 19:17:37  ·  1435ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   269ms
🌍 A Records1 records   262ms
📧 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)
🔐 DNSSEC447ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026070600
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
269ms
A
262ms
MX
253ms
AAAA
271ms
TXT
474ms
CAA
275ms
HTTPS
265ms
TLSA
94ms
SOA
0ms
MTA-STS
304ms
DNSSEC
447ms
SRV
262ms
Total
1435ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-06 19:17:37 1435ms 3 NS 1 A 0 MX 🔒 Secure View
2026-06-27 12:07:16 454ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-25 07:38:40 370ms 3 NS 0 A 0 MX 🔒 Secure View
2026-06-24 00:09:55 918ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-16 12:53:23 1110ms 3 NS 0 A 0 MX 🔒 Secure View
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