a-certifikat.dk
Last scanned: 2026-08-24 18:55:19  ·  1429ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   96ms
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   61ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.213.169 3600s webcluster2.webpod14-cph3.one.com AS51468 One.com A/S 46.30.208.0/21 🇩🇰 Denmark Copenhagen
📧 MX Records1 records   90ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
🔷 AAAA Records (IPv6)1 records   72ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a02:2350:5:10c:8048:65a7:e401:b060 3600s — AS51468 One.com A/S 2a02:2350:0:0:0:0:0:0/32 🇩🇰 Denmark Copenhagen
🔐 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)
🔐 DNSSEC313ms
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
96ms
A
61ms
MX
90ms
AAAA
72ms
TXT
385ms
CAA
113ms
HTTPS
122ms
TLSA
160ms
SOA
0ms
MTA-STS
152ms
DNSSEC
313ms
SRV
188ms
Total
1429ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-24 18:55:19 1429ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-17 21:49:01 1720ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-25 06:37:20 8545ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-27 08:18:50 574ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-23 17:25:53 985ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-20 22:35:45 937ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-18 09:34:06 903ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-16 12:59:31 1847ms 2 NS 1 A 4 MX 🔒 Secure View
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