ck3.dk

📜 Historical scan 2026-07-02 00:04:35 · ← 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 89ms

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 97ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	14400s	ck3-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::a 2a01:111:f403:ca04::b 2a01:111:f403:ca09::f 52.101.68.12 52.101.73.19 52.101.73.30 52.101.73.4	mail-db4pr02cu00204.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com mail-am0pr83cu00404.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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 129ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 210ms

TXT Record
MS=ms35720226
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (ck3.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

149ms

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#

94ms

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 (75d)

🔗 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#

89ms

81ms

97ms

AAAA

73ms

TXT

210ms

CAA

73ms

HTTPS

90ms

TLSA

464ms

SOA

94ms

MTA-STS

108ms

DNSSEC

149ms

SRV

129ms

Total

1064ms

🕐 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	17064ms	2 NS 0 A 1 MX	🔓 Insecure
2026-07-02 00:04:35 shown	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