n-b-f.dk
Last scanned: 2026-08-13 05:21:36  ·  5229ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   37ms
🌍 A Records1 records   34ms
📧 MX Records3 records   31ms
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.24
🔶 Autoconfig86.48.37.143
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   182ms
TXT Record
v=spf1 ip4:40.115.24.223 include:spf.protection.outlook.com -all
✉️ SPF
PolicyRecord (n-b-f.dk)
-all (hard fail) v=spf1 ip4:40.115.24.223 include:spf.protection.outlook.com -all
📨 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)
🔐 DNSSEC81ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA51ms
FieldValue
Serial2026032401
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
34ms
MX
31ms
AAAA
32ms
TXT
182ms
CAA
54ms
HTTPS
56ms
TLSA
203ms
SOA
51ms
MTA-STS
70ms
DNSSEC
81ms
SRV
70ms
Total
5229ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-13 05:21:36 5229ms 2 NS 1 A 3 MX 🔒 Secure View
2026-08-10 03:21:54 8139ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-23 14:10:45 682ms 2 NS 1 A 3 MX 🔒 Secure View
2026-06-22 06:11:48 1167ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 18:57:53 3198ms 2 NS 1 A 3 MX 🔒 Secure View
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