dubu.dk
Last scanned: 2026-08-27 22:57:36  ·  4606ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   55ms
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   59ms
IPTTLPTRASNISP / OrgCIDRCountryCity
5.44.139.83 600s — AS3292 TDC Holding A/S 5.44.136.0/21 🇩🇰 Denmark —
📧 MX Records1 records   57ms
PriorityTTLMail ServerIP addressesPTRASN
5 43200s mail.dubu.dk 109.236.177.160 mail.dubu.dk AS25384 Kyndryl Danmark ApS
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records6 records   182ms
TXT Record
_globalsign-domain-verification=-FIJhLighrmtT8SFYI9RSI6M9KhktdiYS7c8XvEYCe
_globalsign-domain-verification=diff_L2lZ7vjZZGskXvh7ZZpWhNz5Wd8dxFLB9k3Qb
/6/6kUEJgmg1S2tf0gDpVN6CCEZ4taP7sK+ohRMT3Bw=
fsVNBhfyiNfHT34A80UrRPtUa9qLnJP3j/CFvsqMIAc=
NoWzh5r/EHudNY1pgjyFem6zD04UF9UxNoFZ5oR6Xfc=
q+T8xZEUxsiKl2IKH7fSZl1BHwvJ25mjL1Vy1+mQsFo=
✉️ 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 / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC97ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081201
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
55ms
A
59ms
MX
57ms
AAAA
50ms
TXT
182ms
CAA
44ms
HTTPS
42ms
TLSA
4035ms
SOA
0ms
MTA-STS
78ms
DNSSEC
97ms
SRV
72ms
Total
4606ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 22:57:36 4606ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-21 14:29:13 8699ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-13 11:38:20 756ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-18 21:42:46 1393ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-16 17:02:17 4894ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-02 10:45:42 1351ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-25 16:16:14 3387ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-24 13:50:45 1099ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-19 23:17:18 4404ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 04:55:38 593ms 2 NS 1 A 1 MX 🔒 Secure View
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