ck3.dk

📜 Historical scan 2026-07-28 10:28:38 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ck3.dk is a .dk domain served by 2 nameservers (ns1.jetcom.dk, ns2.jetcom.dk). It was registered on 18 December 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by ck3-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 2042ms

Nameserver	IP addresses	PTR	ASN / 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 Records#

1 records 2041ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
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 Records#

1 records 4031ms

Service	Priority	Weight	Port	Target
_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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-13 15:32:49

www	NXDOMAIN
www vs bare domain	Neither resolves ck3.dk: no address www.ck3.dk: no address
Wildcard	No

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

9065ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

2039ms

Field	Value
Serial	2024112703
Primary NS (MNAME)	ns1.jetcom.dk
Responsible (RNAME)	hostmaster@ck3.dk
Refresh	3600s
Retry	600s
Expire	604800s
Minimum (neg-cache TTL)	14400s

📋 Registration#

WHOIS fetched 2026-10-16 21:43:18

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2017-12-18
Expires	2026-12-31 (74d)

🔗 Same registrant#

2 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
brynildsen.dk	Punktum dk A/S (direct)
byneve.dk	CURANET A/S

📋 WHOIS#

⏱️ Lookup Timing#

2042ms

4029ms

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 At	Duration	Records	DNSSEC
2026-09-02 07:14:12	3568ms	2 NS 0 A 1 MX	🔓 Insecure
2026-07-28 10:28:38 shown	17064ms	2 NS 0 A 1 MX	🔓 Insecure
2026-07-02 00:04:35	1064ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-16 21:49:58	63528ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-16 21:10:21	1563ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-16 21:10:05	712ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-16 21:01:43	1432ms	2 NS 0 A 1 MX	🔓 Insecure