iskerner.dk
Last scanned: 2026-08-27 11:55:00  ·  606ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   49ms
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   38ms
IPTTLPTRASNISP / OrgCIDRCountryCity
130.225.212.5 86400s — AS1835 IDDQD-AS 130.225.0.0/16 🇩🇰 Denmark —
📧 MX Records1 records   40ms
PriorityTTLMail ServerIP addressesPTRASN
10 86400s mail.gfy.ku.dk — — —
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   195ms
TXT Record
Is og Klima gruppen, 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
🔏 ACME Challenge
TypeNameValue
TXT _acme-challenge.iskerner.dk Y9ghvR2xE9_MG2SqHTqCCW4YgXOBU214IbREo-vUrfw
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC253ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026062901
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
49ms
A
38ms
MX
40ms
AAAA
39ms
TXT
195ms
CAA
60ms
HTTPS
42ms
TLSA
74ms
SOA
0ms
MTA-STS
66ms
DNSSEC
253ms
SRV
65ms
Total
606ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 11:55:00 606ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-08-26 10:28:34 655ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-29 22:37:43 624ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-28 04:40:48 657ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-18 04:28:18 659ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-18 04:03:39 858ms 4 NS 1 A 1 MX 🔓 Insecure View
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