j-k-t.dk

📜 Historical scan 2026-06-26 21:53:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

j-k-t.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 14 October 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.211.38 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 more. 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 232ms

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 243ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.211.38	3600s	domain-parking.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

4 records 247ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod11-cph3.one.com	104.37.34.230	mx1.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod11-cph3.one.com	104.37.34.231	mx2.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod11-cph3.one.com	104.37.34.232	mx3.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	10800s	mx4.pub.mailpod11-cph3.one.com	104.37.34.233	mx4.pub.mailpod11-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 370ms

TXT Record
v=spf1 -all
v=spf1 include:_custspf.one.com ~all

✉️ SPF#

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (j-k-t.dk)
-all (hard fail)	v=spf1 -all
~all (soft fail)	v=spf1 include:_custspf.one.com ~all

📨 DMARC#

Policy	Record (_dmarc.j-k-t.dk)
p=reject	v=DMARC1; p=reject

📬 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 2026-10-09 09:06:00

www	46.30.211.38 (AS51468) (address records, no CNAME)
www vs bare domain	Same network j-k-t.dk: 46.30.211.38 (AS51468) www.j-k-t.dk: 46.30.211.38 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

error 2 SPF records: receivers must treat that as a permanent error (RFC 7208 §4.5)

🔗 TLSA / DANE#

4 records 171ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…

🔐 DNSSEC#

312ms

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

🏷️ SOA#

227ms

Field	Value
Serial	2026041209
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 2026-10-14 19:08:05

Field	Value
Registrar	ONE.COM A/S
Registered	2022-10-14
Expires	2026-10-13 (expired)

📋 WHOIS#

⏱️ Lookup Timing#

232ms

243ms

247ms

AAAA

227ms

TXT

370ms

CAA

228ms

HTTPS

210ms

TLSA

171ms

SOA

227ms

MTA-STS

233ms

DNSSEC

312ms

SRV

285ms

Total

1193ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-25 07:28:40	212ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-22 19:28:20	116ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-21 02:50:00	375ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-20 01:51:25	217ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-19 01:06:25	387ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-17 23:49:53	218ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-16 23:02:11	247ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-15 22:25:18	102ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-14 18:47:17	636ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-09 09:06:00	500ms	2 NS 1 A 4 MX	🔒 Secure
2026-10-07 19:22:12	733ms	2 NS 1 A 4 MX	🔒 Secure
2026-10-02 09:38:59	427ms	2 NS 1 A 4 MX	🔒 Secure
2026-09-17 07:17:48	810ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-31 15:08:45	648ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-28 11:16:52	1056ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-01 12:27:47	656ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-26 21:53:23 shown	1193ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-17 14:35:08	2684ms	2 NS 1 A 4 MX	🔒 Secure