sdn.dk
Last scanned: 2026-08-26 13:20:40  ·  1058ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   66ms
NameserverIP addressesPTRASN / ISP
ns1-auth.csc.dk 147.29.236.25
2a01:5440:2:0:147:29:236:25		 ns1-auth.csc.dk
—		 AS29156 DXC Technology Danmark A/S
AS29156 DXC Technology Danmark A/S
ns2-auth.csc.dk 147.29.238.25
2a01:5440:2:2000:147:29:238:25		 ns2-auth.csc.dk
—		 AS29156 DXC Technology Danmark A/S
AS29156 DXC Technology Danmark A/S
🌍 A Records1 records   58ms
IPTTLPTRASNISP / OrgCIDRCountryCity
147.29.40.173 28800s sdn.dk AS29156 DXC Technology Danmark A/S 147.29.0.0/17 🇩🇰 Denmark Valby
📧 MX Records1 records   56ms
PriorityTTLMail ServerIP addressesPTRASN
10 28800s mail2.sdn.dk 147.29.40.17 mail2.sdn.dk AS29156 DXC Technology Danmark A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   302ms
TXT Record
v=spf1 ip4:147.29.40.17 ip4:147.29.40.145 ip4:147.29.236.1 ip4:147.29.238.1 -all
✉️ SPF
PolicyRecord (sdn.dk)
-all (hard fail) v=spf1 ip4:147.29.40.17 ip4:147.29.40.145 ip4:147.29.236.1 ip4:147.29.238.1 -all
📨 DMARC
PolicyRecord (_dmarc.sdn.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:fclemen@dxc.com; ruf=mailto:fclemen@dxc.com; fo=1
📬 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)
🔐 DNSSEC271ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2025060408
Primary NS (MNAME)ns-master.csc.dk
Responsible (RNAME)hostmaster@csc.dk
Refresh14400s
Retry3600s
Expire2419200s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
66ms
A
58ms
MX
56ms
AAAA
71ms
TXT
302ms
CAA
134ms
HTTPS
97ms
TLSA
89ms
SOA
0ms
MTA-STS
168ms
DNSSEC
271ms
SRV
113ms
Total
1058ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 13:20:40 1058ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-02 13:42:36 1303ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-18 06:35:07 2696ms 2 NS 1 A 1 MX 🔓 Insecure View
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