ck3.dk
Last scanned: 2026-07-28 10:28:38  ·  17064ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   2042ms
NameserverIP addressesPTRASN / ISP
ns1.jetcom.dk 193.242.107.7 ns1.jetcom.dk AS31027 GlobalConnect A/S
ns2.jetcom.dk 193.242.107.8 ns2.jetcom.dk AS31027 GlobalConnect A/S
🌍 A Records
🌍
No A records found
📧 MX Records1 records   2041ms
PriorityTTLMail ServerIP addressesPTRASN
1 14400s ck3-dk.mail.protection.outlook.com 2a01:111:f403:ca04::10
2a01:111:f403:ca04::2
2a01:111:f403:ca04::c
2a01:111:f403:ca09::1
52.101.68.16
52.101.68.18
52.101.68.39
52.101.73.26		 mail-dbapr03cu00100.inbound.protection.outlook.com
mail-du2pr03cu00102.inbound.protection.outlook.com
mail-db9pr02cu00204.inbound.protection.outlook.com
mail-as9pr07cu00301.inbound.protection.outlook.com
mail-db4pr02cu00400.inbound.protection.outlook.com
mail-db4pr02cu00302.inbound.protection.outlook.com
mail-db7pr03cu00607.inbound.protection.outlook.com
mail-as9pr05cu01302.inbound.protection.outlook.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   4031ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 100 1 5061 sipfed.online.lync.com
📝 TXT Records
📝
No TXT records found
✉️ 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)
🔐 DNSSEC9065ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset
🏷️ SOA2039ms
FieldValue
Serial2024112703
Primary NS (MNAME)ns1.jetcom.dk
Responsible (RNAME)hostmaster@ck3.dk
Refresh3600s
Retry600s
Expire604800s
Minimum (neg-cache TTL)14400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
2042ms
A
4029ms
MX
2041ms
AAAA
2040ms
TXT
4192ms
CAA
2040ms
HTTPS
2039ms
TLSA
698ms
SOA
2039ms
MTA-STS
4037ms
DNSSEC
9065ms
SRV
4031ms
Total
17064ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-28 10:28:38 17064ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-07-02 00:04:35 1064ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-06-16 21:49:58 63528ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-06-16 21:10:21 1563ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-06-16 21:10:05 712ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-06-16 21:01:43 1432ms 2 NS 0 A 1 MX 🔓 Insecure View
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