dsbfirst.dk
Last scanned: 2026-08-27 04:11:34  ·  2808ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   56ms
NameserverIP addressesPTRASN / ISP
dns.dsb.dk 193.28.147.132 dns.dsb.dk AS41746 DSB (SOV)
ns.dsb.dk 193.28.147.131 ns.dsb.dk AS41746 DSB (SOV)
🌍 A Records1 records   73ms
IPTTLPTRASNISP / OrgCIDRCountryCity
193.28.147.158 300s www.dsb.dk AS41746 DSB (SOV) 193.28.147.0/24 🇩🇰 Denmark Kongens Lyngby
📧 MX Records
📧
No MX records found
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.8
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   102ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 100 1 5061 sipfed.online.lync.com
📝 TXT Records3 records   243ms
TXT Record
2/eF3oQD5uSrKaj+Gwgv4EENmiNd+jaELtbPe7w4PNFJW3ycWE3xXmWU+4uag16VN9uaPHd2c+MX2ekClJ+Ryw==
MS=ms46619066
v=spf1 include:dsb.includes.dsb.dk include:spf.protection.outlook.com include:spf.mph1.com -all
✉️ SPF
PolicyRecord (dsbfirst.dk)
-all (hard fail) v=spf1 include:dsb.includes.dsb.dk include:spf.protection.outlook.com include:spf.mph1.com -all
📨 DMARC
PolicyRecord (_dmarc.dsbfirst.dk)
p=reject v=DMARC1; p=reject; rua=mailto:pfutvobx@ag.eu.dmarcadvisor.com; ruf=mailto:pfutvobx@fr.eu.dmarcadvisor.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)
🔐 DNSSEC2079ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2024102901
Primary NS (MNAME)ns.dsb.dk
Responsible (RNAME)manager@dsb.dk
Refresh1800s
Retry600s
Expire1209600s
Minimum (neg-cache TTL)5400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
56ms
A
73ms
MX
50ms
AAAA
52ms
TXT
243ms
CAA
54ms
HTTPS
57ms
TLSA
54ms
SOA
0ms
MTA-STS
80ms
DNSSEC
2079ms
SRV
102ms
Total
2808ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 04:11:34 2808ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-08-25 21:01:41 2813ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-06-25 11:44:19 7713ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-06-24 06:20:34 566ms 2 NS 1 A 0 MX ❓ Unknown View
2026-06-22 19:21:45 1136ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-21 23:13:38 1115ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 04:45:43 537ms 2 NS 1 A 0 MX 🔓 Insecure View
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