cleantab.dk
Last scanned: 2026-09-01 15:59:21  ·  12732ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   137ms
NameserverIP addressesPTRASN / ISP
ns1.systemdns.com 216.40.47.90
2604:4000:0:d:216:40:47:90		 ns1.systemdns.com
ns1.systemdns.com		 AS15348 Tucows.com Co.
AS15348 Tucows.com Co.
ns2.systemdns.com 2604:4000:2800:d:64:99:148:16
64.98.148.16		 ns2.systemdns.com
ns2.systemdns.com		 AS32491 Tucows.com Co.
AS32491 Tucows.com Co.
ns3.systemdns.com 2604:4000:0:d:64:99:96:36
64.99.96.36		 ns3.systemdns.com
ns3.systemdns.com		 AS15348 Tucows.com Co.
AS15348 Tucows.com Co.
🌍 A Records1 records   163ms
IPTTLPTRASNISP / OrgCIDRCountryCity
78.141.239.221 300s aemx2.cubeabout.com AS20473 The Constant Company, LLC 78.141.192.0/18 🇬🇧 United Kingdom Canary Wharf
📧 MX Records1 records   163ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s mx.cleantab.dk.cust.a.hostedemail.com — — —
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   1039ms
TXT Record
v=spf1 a mx ip4:216.40.44.0/24 ip4:78.141.201.72 -all
✉️ SPF
PolicyRecord (cleantab.dk)
-all (hard fail) v=spf1 a mx ip4:216.40.44.0/24 ip4:78.141.201.72 -all
📨 DMARC
PolicyRecord (_dmarc.cleantab.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)
🔐 DNSSEC9101ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial1751986458
Primary NS (MNAME)ns1.systemdns.com
Responsible (RNAME)hostmaster@systemdns.com
Refresh10800s
Retry3600s
Expire300s
Minimum (neg-cache TTL)60s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
137ms
A
163ms
MX
163ms
AAAA
183ms
TXT
1039ms
CAA
138ms
HTTPS
136ms
TLSA
1538ms
SOA
0ms
MTA-STS
271ms
DNSSEC
9101ms
SRV
272ms
Total
12732ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-01 15:59:21 12732ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-19 23:22:23 2720ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-16 21:15:58 6311ms 3 NS 1 A 1 MX 🔓 Insecure View
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