cribmaster.dk
Last scanned: 2026-08-31 15:41:11  ·  17696ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   68ms
NameserverIP addressesPTRASN / ISP
ns1.markmonitor.com 149.112.160.1
2620:10a:80a8::1		 —
—		 AS55195 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements In
AS55195 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements In
ns3.markmonitor.com 149.112.161.1
2620:10a:80a9::1		 —
—		 AS394354 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements I
AS394354 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements I
ns5.markmonitor.com 149.112.160.2
2620:10a:80a8::2		 —
—		 AS55195 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements In
AS55195 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements In
🌍 A Records1 records   71ms
IPTTLPTRASNISP / OrgCIDRCountryCity
74.85.139.138 86400s — AS13649 Flexential Colorado Corp. 74.85.128.0/20 🇺🇸 United States —
📧 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 Records
📝
No TXT records found
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 DMARC
PolicyRecord (_dmarc.cribmaster.dk)
p=none (monitor only) v=DMARC1; p=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com;
📬 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)
🔐 DNSSEC9120ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2025040902
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
68ms
A
71ms
MX
60ms
AAAA
68ms
TXT
803ms
CAA
66ms
HTTPS
70ms
TLSA
4038ms
SOA
0ms
MTA-STS
208ms
DNSSEC
9120ms
SRV
788ms
Total
17696ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 15:41:11 17696ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-08-27 08:37:54 2461ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-07-02 02:53:46 1869ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-07-02 01:25:10 1741ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-06-16 22:56:23 831ms 3 NS 1 A 0 MX 🔓 Insecure View
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