sddt.dk
Last scanned: 2026-08-31 23:30:21  ·  1244ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   51ms
🌍 A Records1 records   52ms
📧 MX Records1 records   50ms
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.24
🔷 AAAA Records (IPv6)1 records   47ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a00:1c98:1000:1262:0:3:61f9:bcf7 600s AS34762 Combell NV 2a00:1c98:0:0:0:0:0:0/32 🇧🇪 Belgium
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   120ms
TXT Record
MS=ms36804543
v=spf1 include:spf.protection.outlook.com -all
✉️ SPF
PolicyRecord (sddt.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)
🔐 DNSSEC120ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026083001
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
51ms
A
52ms
MX
50ms
AAAA
47ms
TXT
120ms
CAA
50ms
HTTPS
50ms
TLSA
724ms
SOA
0ms
MTA-STS
36ms
DNSSEC
120ms
SRV
71ms
Total
1244ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 23:30:21 1244ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-24 22:54:39 9861ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-24 21:19:07 1045ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-24 19:12:41 772ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-20 19:23:56 2724ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-19 06:52:24 1930ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 14:03:27 2135ms 2 NS 1 A 1 MX 🔒 Secure View
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