coreconcept.dk
📜 Historical scan 2026-06-20 00:23:32  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   108ms
NameserverIP addressesPTRASN / ISP
ns.coreconcept.dk 91.189.201.201 ns.coreconcept.dk AS42638 Netvaerkssmeden
ns2.coreconcept.dk 91.189.202.202 ns2.coreconcept.dk AS42638 Netvaerkssmeden
🌍 A Records1 records   122ms
IPTTLPTRASNISP / OrgCIDRCountryCity
91.189.200.154 300s — AS42638 Netvaerkssmeden 91.189.200.0/21 🇩🇰 Denmark Glostrup Municipality
📧 MX Records2 records   1614ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mail.coreconcept.dk — — —
10 300s mail.servmail.dk — — —
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   2247ms
TXT Record
\"v=spf1 a mx a:exchange.coreconcept.dk include:tele.dk ~all\"
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 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)
🔐 DNSSEC1452ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA125ms
FieldValue
Serial152
Primary NS (MNAME)ns.coreconcept.dk
Responsible (RNAME)hostmaster@coreconcept.dk
Refresh360s
Retry300s
Expire300s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
108ms
A
122ms
MX
1614ms
AAAA
1609ms
TXT
2247ms
CAA
120ms
HTTPS
1607ms
TLSA
2143ms
SOA
125ms
MTA-STS
110ms
DNSSEC
1452ms
SRV
1612ms
Total
7589ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-26 14:45:47 6455ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-06-26 04:04:25 8566ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-06-23 11:23:10 1229ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-06-20 00:23:32 7589ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-06-16 22:26:19 2892ms 0 NS 1 A 2 MX 🔓 Insecure View
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