koolsen.dk
📜 Historical scan 2026-06-24 07:30:11  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   287ms
NameserverIP addressesPTRASN / ISP
ns4.dns-123.net 35.198.132.83 83.132.198.35.bc.googleusercontent.com AS396982 Google LLC
ns5.dns-123.net 35.187.184.173 173.184.187.35.bc.googleusercontent.com AS396982 Google LLC
ns6.dns-123.net 35.228.54.1 1.54.228.35.bc.googleusercontent.com AS396982 Google LLC
🌍 A Records1 records   187ms
IPTTLPTRASNISP / OrgCIDRCountryCity
5.186.164.183 7200s server7183.serverpark.dk AS44869 FIBIA P/S 5.186.0.0/16 🇩🇰 Denmark Frederiksberg
📧 MX Records1 records   192ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s server7183.serverpark.dk 5.186.164.183 server7183.serverpark.dk AS44869 FIBIA P/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover5.186.164.183
🔶 Autoconfig5.186.164.183
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   706ms
TXT Record
v=spf1 a mx include:_spf.serverpark.dk ~all
✉️ SPF
PolicyRecord (koolsen.dk)
~all (soft fail) v=spf1 a mx include:_spf.serverpark.dk ~all
📨 DMARC
PolicyRecord (_dmarc.koolsen.dk)
p=none (monitor only) v=DMARC1; p=none;
📬 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)
🔐 DNSSEC414ms
CheckResult
Validation Status⚠️ Bogus
AD Flag (resolver validates)✗ Not set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsbroken trust chain resolving 'koolsen.dk/DS/IN': 127.0.0.1#53
🏷️ SOA366ms
FieldValue
Serial2009040655
Primary NS (MNAME)ns4.dns-123.net
Responsible (RNAME)admin@dns-123.net
Refresh28800s
Retry7200s
Expire604800s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
287ms
A
187ms
MX
192ms
AAAA
217ms
TXT
706ms
CAA
221ms
HTTPS
191ms
TLSA
265ms
SOA
366ms
MTA-STS
336ms
DNSSEC
414ms
SRV
446ms
Total
2530ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 08:46:22 846ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-28 10:46:25 1040ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-24 07:30:11 2530ms 3 NS 1 A 1 MX ⚠️ Bogus View
2026-06-24 00:14:54 1150ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-23 22:23:03 787ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-22 14:09:35 853ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-18 04:14:39 632ms 3 NS 1 A 1 MX 🔒 Secure View
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