slackcertified.dk
Last scanned: 2026-08-27 19:49:32  ·  1170ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   58ms
🌍 A Records1 records   78ms
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   402ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (slackcertified.dk)
-all (hard fail) v=spf1 -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)
🔐 DNSSEC95ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2019093004
Primary NS (MNAME)ns1.markmonitor.com
Responsible (RNAME)hostmaster@markmonitor.com
Refresh86400s
Retry3600s
Expire2592000s
Minimum (neg-cache TTL)172800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
58ms
A
78ms
MX
47ms
AAAA
60ms
TXT
402ms
CAA
55ms
HTTPS
54ms
TLSA
69ms
SOA
0ms
MTA-STS
91ms
DNSSEC
95ms
SRV
294ms
Total
1170ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 19:49:32 1170ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-06-27 16:13:34 905ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-06-24 11:43:22 6431ms 2 NS 1 A 0 MX ❓ Unknown View
2026-06-23 14:54:32 1047ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 13:34:09 1712ms 2 NS 1 A 0 MX 🔓 Insecure View
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