9u.dk
Last scanned: 2026-08-24 02:43:14  ·  4892ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   48ms
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   54ms
IPTTLPTRASNISP / OrgCIDRCountryCity
95.128.28.29 43200s — AS198455 Danmarks Tekniske Universitet 95.128.24.0/21 🇩🇰 Denmark —
📧 MX Records1 records   73ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
🔷 AAAA Records (IPv6)1 records   50ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2001:878:0:fff2::5 43200s — AS1835 IDDQD-AS 2001:878:0:0:0:0:0:0/30 🇩🇰 Denmark —
🔐 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 / 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
🏷️ SOA47ms
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
48ms
A
54ms
MX
73ms
AAAA
50ms
TXT
160ms
CAA
61ms
HTTPS
51ms
TLSA
302ms
SOA
47ms
MTA-STS
56ms
DNSSEC
97ms
SRV
70ms
Total
4892ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-24 02:43:14 4892ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-14 13:40:19 1750ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-14 08:52:10 518ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-27 04:18:50 1364ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-23 14:56:49 1158ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-16 12:47:41 527ms 2 NS 1 A 0 MX 🔒 Secure View
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