know-how.dk
Last scanned: 2026-08-12 10:48:16  ·  1902ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   259ms
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 Records
🌍
No A records found
📧 MX Records1 records   266ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s antispam.amtsoftware.com 176.22.215.154 antispam.amtsoftware.com AS3292 TDC Holding 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 / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC421ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2026081101
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
259ms
A
236ms
MX
266ms
AAAA
279ms
TXT
466ms
CAA
281ms
HTTPS
295ms
TLSA
136ms
SOA
0ms
MTA-STS
329ms
DNSSEC
421ms
SRV
328ms
Total
1902ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-12 10:48:16 1902ms 2 NS 0 A 1 MX 🔒 Secure View
2026-07-18 19:40:23 2010ms 2 NS 0 A 1 MX 🔒 Secure View
2026-07-15 19:38:52 1575ms 2 NS 0 A 1 MX 🔒 Secure View
2026-07-04 14:25:24 16211ms 2 NS 0 A 1 MX 🔒 Secure View
2026-06-18 05:19:26 2433ms 2 NS 0 A 1 MX 🔒 Secure View
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