sktf.dk
Last scanned: 2026-06-25 15:11:38  ·  1248ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   233ms
🌍 A Records1 records   231ms
📧 MX Records2 records   224ms
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover-mf.onlinemail.io → 185.21.40.62
🔶 Autoconfigautoconfig-mf.onlinemail.io → 185.21.40.62
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   354ms
TXT Record
v=spf1 include:spf.onlinemail.io ?all
✉️ SPF
PolicyRecord (sktf.dk)
?all (neutral) v=spf1 include:spf.onlinemail.io ?all
📨 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)
🔐 DNSSEC326ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA236ms
FieldValue
Serial2021111701
Primary NS (MNAME)ns1.curanet.dk
Responsible (RNAME)hostmaster@curanet.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
233ms
A
231ms
MX
224ms
AAAA
209ms
TXT
354ms
CAA
211ms
HTTPS
176ms
TLSA
131ms
SOA
236ms
MTA-STS
255ms
DNSSEC
326ms
SRV
262ms
Total
1248ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-25 15:11:38 1248ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-20 16:03:22 1111ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-17 14:34:04 1495ms 2 NS 1 A 2 MX 🔒 Secure View
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