jon-gislason.dk
Last scanned: 2026-08-27 09:27:45  ·  2457ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   38ms
🌍 A Records1 records   41ms
📧 MX Records1 records   37ms
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)
🔐 DNSSEC2053ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081801
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
38ms
A
41ms
MX
37ms
AAAA
39ms
TXT
170ms
CAA
31ms
HTTPS
35ms
TLSA
65ms
SOA
0ms
MTA-STS
83ms
DNSSEC
2053ms
SRV
61ms
Total
2457ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 09:27:45 2457ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-25 06:42:06 8493ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-18 16:42:53 2982ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-11 08:56:00 4597ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-19 18:24:12 8485ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-16 01:58:00 628ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-13 08:39:42 8522ms 1 NS 0 A 0 MX ❓ Unknown View
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