jckc.dk

📜 Historical scan 2026-09-03 17:29:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jckc.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 9 August 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 85.81.168.44 is hosted by Telenor A/S (AS9158) in Denmark. Mail is handled by owa.jckc.dk. The zone is DNSSEC-signed and validates, publishes a 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 34ms

Nameserver	IP addresses	PTR	ASN / 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

🌍 A Records#

1 records 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
85.81.168.44	43200s	owa.jckc.dk	AS9158	Telenor A/S	85.80.0.0/14	🇩🇰 Denmark	Roskilde

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	owa.jckc.dk	85.81.168.44	owa.jckc.dk	AS9158 Telenor A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	85.81.168.44
🔶 Autoconfig	85.81.168.44

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 51ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	owa.jckc.dk

📝 TXT Records#

1 records 144ms

TXT Record
v=spf1 ip4:85.81.168.44 ip4:85.81.60.81 ip4:87.104.40.9 ip4:80.209.102.172 ip4:172.16.2.10 include:_custspf.one.com -all

✉️ SPF#

Policy	Record (jckc.dk)
-all (hard fail)	v=spf1 ip4:85.81.168.44 ip4:85.81.60.81 ip4:87.104.40.9 ip4:80.209.102.172 ip4:172.16.2.10 include:_custspf.one.com -all

📨 DMARC#

Policy	Record (_dmarc.jckc.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:member@jckc.dk; ruf=mailto:member@jckc.dk

📬 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 2026-10-18 10:09:19

www	85.81.168.44 (AS9158) (address records, no CNAME)
www vs bare domain	Same network jckc.dk: 85.81.168.44 (AS9158) www.jckc.dk: 85.81.168.44 (AS9158)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 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#

95ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2026090301
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-18 10:30:41

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2006-08-09
Expires	2027-08-31 (316d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

34ms

27ms

36ms

AAAA

30ms

TXT

144ms

CAA

29ms

HTTPS

34ms

TLSA

57ms

SOA

0ms

MTA-STS

41ms

DNSSEC

95ms

SRV

51ms

Total

509ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 10:09:19	1130ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-13 04:34:17	1074ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 12:38:27	4654ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-03 17:29:27 shown	509ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-14 22:45:01	4760ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 13:16:41	5862ms	2 NS 1 A 1 MX	🔒 Secure