c-20.dk
Last scanned: 2026-08-28 08:53:54  ·  2673ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   37ms
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   39ms
IPTTLPTRASNISP / OrgCIDRCountryCity
130.226.235.163 43200s — AS1835 IDDQD-AS 130.226.0.0/16 🇩🇰 Denmark Copenhagen
📧 MX Records1 records   59ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s c-20.dk 130.226.235.163 — AS1835 IDDQD-AS
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover130.226.235.163
🔶 Autoconfig130.226.235.163
🔷 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)
🔐 DNSSEC80ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026082401
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
37ms
A
39ms
MX
59ms
AAAA
41ms
TXT
218ms
CAA
31ms
HTTPS
33ms
TLSA
2033ms
SOA
0ms
MTA-STS
69ms
DNSSEC
80ms
SRV
104ms
Total
2673ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 08:53:54 2673ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-26 22:41:56 24438ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-26 03:40:34 8848ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-30 04:19:14 8594ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-26 09:41:06 8495ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 18:42:33 8331ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 18:41:05 4643ms 2 NS 1 A 1 MX 🔒 Secure View
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