simfeu.dk
📜 Historical scan 2026-07-21 20:03:41  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   43ms
🌍 A Records1 records   40ms
📧 MX Records1 records   45ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
🔷 AAAA Records (IPv6)1 records   39ms
🔐 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)
🔐 DNSSEC135ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026072001
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
43ms
A
40ms
MX
45ms
AAAA
39ms
TXT
236ms
CAA
47ms
HTTPS
41ms
TLSA
47ms
SOA
0ms
MTA-STS
77ms
DNSSEC
135ms
SRV
127ms
Total
656ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-21 12:15:07 2528ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-04 19:09:59 890ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-21 20:03:41 656ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-21 06:50:28 1006ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 22:58:24 701ms 2 NS 1 A 0 MX 🔒 Secure View
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