jby.dk
Last scanned: 2026-09-06 15:23:05  ·  808ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   59ms
🌍 A Records1 records   33ms
📧 MX Records1 records   39ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverjby.dk → 87.62.101.123
🔶 Autoconfigjby.dk → 87.62.101.123
🔷 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
🔏 ACME Challenge
TypeNameValue
CNAME _acme-challenge.jby.dk jby.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC93ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026090301
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
59ms
A
33ms
MX
39ms
AAAA
56ms
TXT
197ms
CAA
54ms
HTTPS
53ms
TLSA
176ms
SOA
0ms
MTA-STS
75ms
DNSSEC
93ms
SRV
77ms
Total
808ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-06 15:23:05 808ms 2 NS 1 A 1 MX 🔒 Secure View
2026-09-05 18:04:01 849ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-20 04:17:23 1357ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-20 20:58:59 774ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-02 17:45:28 2465ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-21 22:13:38 775ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 13:18:02 1733ms 2 NS 1 A 0 MX 🔒 Secure View
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