arfu.dk
Last scanned: 2026-06-28 19:52:45  ·  1085ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   68ms
🌍 A Records
🌍
No A records found
📧 MX Records1 records   81ms
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.56
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   120ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 100 1 5061 sipfed.online.lync.com
📝 TXT Records2 records   440ms
TXT Record
MS=ms33548594
v=spf1 include:spf.protection.outlook.com -all
✉️ SPF
PolicyRecord (arfu.dk)
-all (hard fail) v=spf1 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)
🔐 DNSSEC121ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset
🏷️ SOA62ms
FieldValue
Serial2020092033
Primary NS (MNAME)ns25.domaincontrol.com
Responsible (RNAME)dns@jomax.net
Refresh28800s
Retry7200s
Expire604800s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
68ms
A
101ms
MX
81ms
AAAA
121ms
TXT
440ms
CAA
42ms
HTTPS
62ms
TLSA
245ms
SOA
62ms
MTA-STS
85ms
DNSSEC
121ms
SRV
120ms
Total
1085ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-28 19:52:45 1085ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-06-26 12:21:43 953ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-06-16 12:51:23 1663ms 2 NS 0 A 1 MX 🔓 Insecure View
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