4d-academy.dk
Last scanned: 2026-08-31 18:52:02  ·  9736ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   42ms
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   118ms
IPTTLPTRASNISP / OrgCIDRCountryCity
195.184.33.122 600s — AS3292 TDC Holding A/S 195.184.32.0/19 🇩🇰 Denmark —
📧 MX Records4 records   115ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.pub.mailpod11-cph3.one.com 104.37.34.230 mx1.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx2.pub.mailpod11-cph3.one.com 104.37.34.231 mx2.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx3.pub.mailpod11-cph3.one.com 104.37.34.232 mx3.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx4.pub.mailpod11-cph3.one.com 104.37.34.233 mx4.pub.mailpod11-cph3.one.com AS51468 One.com A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover195.184.33.122
🔶 Autoconfig195.184.33.122
🔷 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
✗ 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 / DANE4 records   89ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 068A81EDC98C58D5D494EDF2924D5F50…
🔐 DNSSEC9096ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026032401
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
42ms
A
118ms
MX
115ms
AAAA
123ms
TXT
283ms
CAA
128ms
HTTPS
122ms
TLSA
89ms
SOA
0ms
MTA-STS
61ms
DNSSEC
9096ms
SRV
166ms
Total
9736ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 18:52:02 9736ms 2 NS 1 A 4 MX 🔒 Secure View
2026-08-16 14:51:04 1062ms 2 NS 1 A 4 MX 🔒 Secure View
2026-07-27 02:44:51 4856ms 2 NS 1 A 4 MX 🔒 Secure View
2026-07-13 17:44:38 4859ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-20 05:25:33 677ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-16 12:55:57 1672ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-16 12:53:45 1729ms 2 NS 1 A 4 MX 🔒 Secure View
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