cuckoos.dk
📜 Historical scan 2026-07-02 14:14:59  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   39ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S
🌍 A Records1 records   60ms
IPTTLPTRASNISP / OrgCIDRCountryCity
136.243.21.239 3600s s3.moonstar.host AS24940 Hetzner Online GmbH 136.243.0.0/16 🇩🇪 Germany Falkenstein
📧 MX Records3 records   48ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.pub.mailpod8-cph3.one.com 185.164.14.102 mx1.pub.mailpod8-cph3.one.com AS51468 One.com A/S
10 10800s mx2.pub.mailpod8-cph3.one.com 185.164.14.103 mx2.pub.mailpod8-cph3.one.com AS51468 One.com A/S
10 10800s mx3.pub.mailpod8-cph3.one.com 185.164.14.104 mx3.pub.mailpod8-cph3.one.com AS51468 One.com A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover136.243.21.239
🔶 Autoconfig136.243.21.239
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   230ms
TXT Record
v=spf1 +mx +a include:spf.postal.mhost.io include:_custspf.one.com ~all
✉️ SPF
PolicyRecord (cuckoos.dk)
~all (soft fail) v=spf1 +mx +a include:spf.postal.mhost.io include:_custspf.one.com ~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 / DANE3 records   75ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod8-cph3.one.com DANE-EE · SPKI · SHA-256 026A3DCAF3804B72DA8C105B5ADC0C7D…
SMTP _25._tcp.mx2.pub.mailpod8-cph3.one.com DANE-EE · SPKI · SHA-256 026A3DCAF3804B72DA8C105B5ADC0C7D…
SMTP _25._tcp.mx3.pub.mailpod8-cph3.one.com DANE-EE · SPKI · SHA-256 026A3DCAF3804B72DA8C105B5ADC0C7D…
🔐 DNSSEC2048ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA32ms
FieldValue
Serial2026062802
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
39ms
A
60ms
MX
48ms
AAAA
29ms
TXT
230ms
CAA
24ms
HTTPS
35ms
TLSA
75ms
SOA
32ms
MTA-STS
47ms
DNSSEC
2048ms
SRV
220ms
Total
2511ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 14:26:20 884ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-21 04:04:29 4373ms 2 NS 1 A 3 MX 🔒 Secure View
2026-07-02 14:14:59 2511ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-25 15:34:09 763ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-25 07:30:00 934ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-16 23:10:27 555ms 2 NS 1 A 3 MX 🔒 Secure View
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