sfx.dk
Last scanned: 2026-08-27 16:55:03  ·  2682ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   67ms
NameserverIP addressesPTRASN / ISP
dns1.rackhosting.com 77.247.69.212 dns1.rackhosting.com AS31590 Rackhosting.com ApS
dns2.rackhosting.com 45.32.187.211 dns2.rackhosting.com AS20473 The Constant Company, LLC
dns3.rackhosting.com 77.247.69.213 dns3.rackhosting.com AS31590 Rackhosting.com ApS
🌍 A Records1 records   71ms
IPTTLPTRASNISP / OrgCIDRCountryCity
194.242.40.58 900s — AS31590 Rackhosting.com ApS 194.242.40.0/24 🇩🇰 Denmark —
📧 MX Records1 records   2053ms
PriorityTTLMail ServerIP addressesPTRASN
0 298s mail.sfx.dk 194.242.40.58 — AS31590 Rackhosting.com ApS
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover194.242.40.58
🔶 Autoconfig194.242.40.58
🔷 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)
🔐 DNSSEC138ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial1270820505
Primary NS (MNAME)dns1.rackhosting.com
Responsible (RNAME)hostmaster@rackhosting.com
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
67ms
A
71ms
MX
2053ms
AAAA
49ms
TXT
233ms
CAA
75ms
HTTPS
71ms
TLSA
123ms
SOA
0ms
MTA-STS
96ms
DNSSEC
138ms
SRV
99ms
Total
2682ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 16:55:03 2682ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-25 06:07:07 744ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-24 10:29:19 752ms 3 NS 1 A 1 MX ❓ Unknown View
2026-06-21 14:53:30 408ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-19 22:02:36 655ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-18 06:04:10 881ms 3 NS 1 A 1 MX 🔓 Insecure View
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