chu.dk
Last scanned: 2026-08-27 14:42:08  ·  888ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   57ms
🌍 A Records1 records   41ms
📧 MX Records4 records   48ms
🔷 AAAA Records (IPv6)1 records   35ms
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   183ms
TXT Record
v=spf1 include:_custspf.one.com -all
✉️ SPF
PolicyRecord (chu.dk)
-all (hard fail) v=spf1 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 / DANE4 records   90ms
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…
🔐 DNSSEC100ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026082005
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
57ms
A
41ms
MX
48ms
AAAA
35ms
TXT
183ms
CAA
54ms
HTTPS
87ms
TLSA
90ms
SOA
0ms
MTA-STS
74ms
DNSSEC
100ms
SRV
71ms
Total
888ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 14:42:08 888ms 2 NS 1 A 4 MX 🔒 Secure View
2026-08-26 06:42:17 698ms 2 NS 1 A 4 MX 🔒 Secure View
2026-08-21 04:48:20 7723ms 2 NS 1 A 4 MX 🔒 Secure View
2026-08-08 15:32:56 8877ms 2 NS 1 A 4 MX 🔒 Secure View
2026-07-07 04:06:48 1368ms 2 NS 1 A 4 MX 🔒 Secure View
2026-07-01 01:17:50 719ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-29 14:23:12 757ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-27 20:48:51 686ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-23 03:28:08 773ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-16 20:45:33 739ms 2 NS 1 A 4 MX 🔒 Secure View
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