jkbk.dk

Records from scan: 2026-10-12 05:31:40 · 827ms total · last checked 2026-10-16 10:23 (unchanged)

⬇ 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 38ms

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 38ms

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	—

📧 MX Records#

1 records 38ms

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 37ms

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	Vallensbæk Strand

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 51ms

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 35ms

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

🧩 Web & zone#

checked 2026-10-12 05:31:40

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 130ms

Service / Owner	Type	Cert association
SMTP _25._tcp.smtp.jkkn.net	DANE-EE · Full cert · SHA-256	CD85DCA78131FF3AE90D35C3FCF85827…
HTTPS _443._tcp.jkbk.dk	DANE-EE · Full cert · SHA-256	AF5A2A47240DEA115CF3EF7B749F3BC0…

🔐 DNSSEC#

108ms

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

🏷️ SOA#

38ms

Field	Value
Serial	2026100308
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 2026-10-03 13:08:12

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2017-03-18
Expires	2036-05-31 (3514d)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

AAAA

37ms

TXT

136ms

CAA

35ms

HTTPS

35ms

TLSA

130ms

SOA

38ms

MTA-STS

54ms

DNSSEC

108ms

SRV

51ms

Total

827ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 05:31:40 shown	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
2026-07-07 01:19:46	1425ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-04 23:59:07	2049ms	3 NS 1 A 1 MX	🔒 Secure