cr-group.dk
Last scanned: 2026-08-24 17:52:58  ·  1485ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   140ms
🌍 A Records1 records   204ms
📧 MX Records1 records   148ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
🔷 AAAA Records (IPv6)1 records   206ms
🔐 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)
🔐 DNSSEC278ms
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
140ms
A
204ms
MX
148ms
AAAA
206ms
TXT
424ms
CAA
198ms
HTTPS
195ms
TLSA
212ms
SOA
0ms
MTA-STS
149ms
DNSSEC
278ms
SRV
211ms
Total
1485ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-24 17:52:58 1485ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-04 02:22:48 3366ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-05 18:37:16 1491ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-04 14:39:28 8102ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-30 09:28:30 1359ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-26 16:56:44 739ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-20 06:51:09 2517ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-16 22:45:38 899ms 2 NS 1 A 4 MX 🔒 Secure View
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