jkbk.dk

📜 Historical scan 2026-07-03 19:43:48 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jkbk.dk is a .dk domain served by 3 nameservers (ns01.one.com, ns02.one.com, ns1.jkkn.dk). It was registered on 18 March 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.210.78.144 is hosted by Hiper A/S (AS203953) in Denmark. Mail is handled by smtp.jkkn.net. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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#

3 records 29ms

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
ns1.jkkn.dk	2a05:f6c7:3713::3 80.210.78.144	gw.netsense.dk gw.netsense.dk	AS203953 Hiper A/S AS203953 Hiper A/S

🌍 A Records#

1 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
80.210.78.144	43200s	gw.netsense.dk	AS203953	Hiper A/S	80.210.64.0/20	🇩🇰 Denmark	Rødovre Municipality

📧 MX Records#

1 records 50ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	smtp.jkkn.net	2a05:f6c7:3713::3 80.210.78.144	gw.netsense.dk gw.netsense.dk	AS203953 Hiper A/S AS203953 Hiper A/S

🔷 AAAA Records (IPv6)#

1 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a05:f6c7:3713::3	43200s	gw.netsense.dk	AS203953	Hiper A/S	2a05:f6c0:0:0:0:0:0:0/29	🇩🇰 Denmark	Vedbæk

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 68ms

Service	Priority	Weight	Port	Target
_imap._tcp	5	0	143	imap.jkkn.net
_imaps._tcp	0	0	993	imap.jkkn.net

📝 TXT Records#

1 records 136ms

TXT Record
v=spf1 mx -all

✉️ SPF#

Policy	Record (jkbk.dk)
-all (hard fail)	v=spf1 mx -all

📨 DMARC#

Policy	Record (_dmarc.jkbk.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc-reports@jkkn.net; ruf=mailto:dmarc-abuse@jkkn.net; sp=reject

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

3 records 43ms

Flags	Tag	Value
0	iodef	mailto:caa-abuse@jkkn.net
0	issue	letsencrypt.org
0	issuewild	;

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-21 03:05:01

www CNAME	jkbk.dk (all on jkbk.dk) → 80.210.78.144 2a05:f6c7:3713::3 (AS203953)
www vs bare domain	Same network jkbk.dk: 80.210.78.144 2a05:f6c7:3713::3 (AS203953) www.jkbk.dk: 80.210.78.144 2a05:f6c7:3713::3 (AS203953)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 2 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

2 records 100ms

Service / Owner	Type	Cert association
SMTP _25._tcp.smtp.jkkn.net	DANE-EE · Full cert · SHA-256	8F452E203DE9E139B9C6D0EE5C96C8EF…
HTTPS _443._tcp.jkbk.dk	DANE-EE · Full cert · SHA-256	B842F32489460D98D18315A0642AED6B…

🔐 DNSSEC#

107ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2024083588
Primary NS (MNAME)	ns1.jkkn.dk
Responsible (RNAME)	zonecontact@jkkn.dk
Refresh	86400s
Retry	7200s
Expire	3628800s
Minimum (neg-cache TTL)	172800s

📋 Registration#

WHOIS fetched 2026-10-17 20:07:15

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2017-03-18
Expires	2036-05-31 (3509d)

🔗 Same registrant#

19 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
asbk.dk	Punktum dk A/S (direct)
blueplanners.dk	Punktum dk A/S (direct)
ctav.dk	Punktum dk A/S (direct)
dft.dk	Punktum dk A/S (direct)
ebbj.dk	Punktum dk A/S (direct)
evakristian.dk	Punktum dk A/S (direct)
helpimprove.dk	Punktum dk A/S (direct)
improfightnight.dk	Punktum dk A/S (direct)
jkkn.dk	Punktum dk A/S (direct)
kochsgade.dk	Punktum dk A/S (direct)
nedergadeteatret.dk	Punktum dk A/S (direct)
netsense.dk	Punktum dk A/S (direct)
organisationsdoktor.dk	Punktum dk A/S (direct)
organisationsdoktoren.dk	Punktum dk A/S (direct)
ruthln.dk	Punktum dk A/S (direct)
senseleaders.dk	Punktum dk A/S (direct)
senseleading.dk	Punktum dk A/S (direct)
ssbk.dk	Punktum dk A/S (direct)
szortsznak.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

29ms

45ms

50ms

AAAA

40ms

TXT

136ms

CAA

43ms

HTTPS

33ms

TLSA

100ms

SOA

0ms

MTA-STS

51ms

DNSSEC

107ms

SRV

68ms

Total

844ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 03:05:01	3908ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-18 11:20:05	2704ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-12 05:31:40	827ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-10 02:25:04	4828ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-03 12:49:18	751ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-02 12:49:03	578ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-30 12:40:08	672ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-24 15:10:43	973ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-23 14:31:41	717ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-14 12:36:40	2695ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-07 12:07:03	1766ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-28 09:24:41	10130ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-28 06:23:10	660ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-26 06:06:13	8453ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-19 09:35:29	8923ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-18 09:28:48	3743ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-16 22:13:29	1128ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-10 07:43:36	3886ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-07 14:41:45	9155ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-05 00:14:18	2137ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-23 11:23:10	2504ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-22 10:56:01	2059ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-21 09:02:58	1224ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-16 15:36:41	1091ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-11 09:10:55	9096ms	3 NS 1 A 1 MX	🔒 Secure