sfn.dk
Last scanned: 2026-08-02 13:36:03  ·  24566ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   47ms
🌍 A Records1 records   47ms
📧 MX Records1 records   46ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s mail4.surftown.dk
🔷 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)
🔐 DNSSEC142ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA38ms
FieldValue
Serial2026032401
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
47ms
A
47ms
MX
46ms
AAAA
56ms
TXT
182ms
CAA
55ms
HTTPS
40ms
TLSA
143ms
SOA
38ms
MTA-STS
65ms
DNSSEC
142ms
SRV
8064ms
Total
24566ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-02 13:36:03 24566ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-25 18:38:42 1204ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-20 07:43:31 715ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 13:56:08 2012ms 2 NS 1 A 1 MX 🔒 Secure View
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