2u4u.dk
Last scanned: 2026-08-20 11:39:04  ·  8958ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   80ms
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   82ms
IPTTLPTRASNISP / OrgCIDRCountryCity
195.47.247.18 3600s one.com.webforward.g1i.one AS51468 One.com A/S 195.47.247.0/24 — —
📧 MX Records4 records   75ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.pub.mailpod14-cph3.one.com 185.10.9.212 mx1.pub.mailpod14-cph3.one.com AS51468 One.com A/S
10 10800s mx2.pub.mailpod14-cph3.one.com 185.10.9.213 mx2.pub.mailpod14-cph3.one.com AS51468 One.com A/S
10 10800s mx3.pub.mailpod14-cph3.one.com 185.10.9.214 mx3.pub.mailpod14-cph3.one.com AS51468 One.com A/S
10 10800s mx4.pub.mailpod14-cph3.one.com 185.10.9.215 mx4.pub.mailpod14-cph3.one.com AS51468 One.com A/S
🔷 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   109ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod14-cph3.one.com DANE-EE · SPKI · SHA-256 A4B9A2A35B513EFAC91F5A3C11DD0C58…
SMTP _25._tcp.mx2.pub.mailpod14-cph3.one.com DANE-EE · SPKI · SHA-256 A4B9A2A35B513EFAC91F5A3C11DD0C58…
SMTP _25._tcp.mx3.pub.mailpod14-cph3.one.com DANE-EE · SPKI · SHA-256 A4B9A2A35B513EFAC91F5A3C11DD0C58…
SMTP _25._tcp.mx4.pub.mailpod14-cph3.one.com DANE-EE · SPKI · SHA-256 A4B9A2A35B513EFAC91F5A3C11DD0C58…
🔐 DNSSEC199ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026082004
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
80ms
A
82ms
MX
75ms
AAAA
74ms
TXT
1272ms
CAA
83ms
HTTPS
90ms
TLSA
109ms
SOA
0ms
MTA-STS
8103ms
DNSSEC
199ms
SRV
108ms
Total
8958ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-20 11:39:04 8958ms 2 NS 1 A 4 MX 🔒 Secure View
2026-07-21 16:44:54 1007ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-24 12:07:55 651ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-21 07:07:43 1051ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-20 05:52:05 791ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-18 10:00:32 2555ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-16 12:55:29 2455ms 2 NS 1 A 4 MX 🔒 Secure View
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