group-nbt.dk
Last scanned: 2026-08-27 13:44:38  ·  725ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   75ms
NameserverIP addressesPTRASN / ISP
dns1.cscdns.net 156.154.130.100
2610:a1:1022::100		 ns3.ascio.net
sbdns3.cscdns.net		 AS12008 Vercara, LLC
AS12008 Vercara, LLC
dns2.cscdns.net 156.154.131.100
2610:a1:1023::100		 ns2.ascio.net
ns3.euro909.com		 AS12008 Vercara, LLC
AS12008 Vercara, LLC
🌍 A Records2 records   54ms
IPTTLPTRASNISP / OrgCIDRCountryCity
165.160.13.20 21600s — AS19574 Corporation Service Company 165.160.12.0/22 🇺🇸 United States —
165.160.15.20 21600s — AS19574 Corporation Service Company 165.160.12.0/22 🇺🇸 United States —
📧 MX Records1 records   43ms
PriorityTTLMail ServerIP addressesPTRASN
10 21600s custmx.cscdns.net 198.58.121.58 198-58-121-58.ip.linodeusercontent.com AS63949 Akamai Connected Cloud
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   268ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (group-nbt.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.group-nbt.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.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)
🔐 DNSSEC112ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2018091108
Primary NS (MNAME)dns1.cscdns.net
Responsible (RNAME)hostmaster@cscdns.net
Refresh10800s
Retry1800s
Expire3600000s
Minimum (neg-cache TTL)21600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
75ms
A
54ms
MX
43ms
AAAA
58ms
TXT
268ms
CAA
84ms
HTTPS
56ms
TLSA
79ms
SOA
0ms
MTA-STS
85ms
DNSSEC
112ms
SRV
112ms
Total
725ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 13:44:38 725ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-19 23:58:38 2342ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-17 10:06:16 4792ms 2 NS 2 A 1 MX ⚠️ Bogus View
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