opticon-schools.dk
Last scanned: 2026-06-27 16:07:50  ·  549ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   43ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S
ns1.nbi.dk 130.225.212.46 ns1.nbi.dk AS1835 IDDQD-AS
ns2.nbi.dk 130.225.212.55 ns2.nbi.dk AS1835 IDDQD-AS
🌍 A Records1 records   33ms
IPTTLPTRASNISP / OrgCIDRCountryCity
130.226.237.173 86400s cmslb.adm.ku.dk AS1835 IDDQD-AS 130.226.0.0/16 🇩🇰 Denmark Copenhagen
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   169ms
TXT Record
Opticon Schools - Horizon 2020, NBI
✉️ 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)
🔐 DNSSEC68ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA33ms
FieldValue
Serial2022070901
Primary NS (MNAME)ns1.nbi.dk
Responsible (RNAME)hostmaster@nbi.dk
Refresh7200s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
43ms
A
33ms
MX
32ms
AAAA
32ms
TXT
169ms
CAA
33ms
HTTPS
38ms
TLSA
38ms
SOA
33ms
MTA-STS
34ms
DNSSEC
68ms
SRV
40ms
Total
549ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-27 16:07:50 549ms 4 NS 1 A 0 MX 🔓 Insecure View
2026-06-17 12:57:00 500ms 4 NS 1 A 0 MX 🔓 Insecure View
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