knbk.dk

📜 Historical scan 2026-08-27 01:40:17 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

knbk.dk is a .dk domain served by 2 nameservers (duke.ns.cloudflare.com, kiki.ns.cloudflare.com). It was registered on 26 September 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.48.125 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.mailpod16-cph3.g1i.one.com, mx2.mailpod16-cph3.g1i.one.com and 2 more. The zone is not DNSSEC-signed, 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#

2 records 30ms

Nameserver	IP addresses	PTR	ASN / ISP
duke.ns.cloudflare.com	108.162.193.110 172.64.33.110 173.245.59.110 2606:4700:58::adf5:3b6e 2803:f800:50::6ca2:c16e 2a06:98c1:50::ac40:216e	duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kiki.ns.cloudflare.com	108.162.192.180 172.64.32.180 173.245.58.180 2606:4700:50::adf5:3ab4 2803:f800:50::6ca2:c0b4 2a06:98c1:50::ac40:20b4	kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 28ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.48.125	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.151.151	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

4 records 28ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.mailpod16-cph3.g1i.one.com	5.249.232.33	mx1.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	300s	mx2.mailpod16-cph3.g1i.one.com	5.249.232.34	mx2.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	300s	mx3.mailpod16-cph3.g1i.one.com	5.249.232.35	mx3.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	300s	mx4.mailpod16-cph3.g1i.one.com	5.249.232.36	mx4.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.48.125
🔶 Autoconfig	172.67.151.151

🔷 AAAA Records (IPv6)#

2 records 26ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:307d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:9797	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 22ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.48.125,172.67.151.151 ech=AEX+DQBBwQAgACCJq/98h4XBibtJpMwP+KRke6TgId8VdS0G6GYygQlfVQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:307d,2606:4700:3035::ac43:9797

📝 TXT Records#

1 records 140ms

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

✉️ SPF#

Policy	Record (knbk.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com ~all

📨 DMARC#

Policy	Record (_dmarc.knbk.dk)
p=none (monitor only)	v=DMARC1; p=none

📬 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 02:08:00

www	104.21.48.125 172.67.151.151 2606:4700:3033::6815:307d 2606:4700:3035::ac43:9797 (AS13335) (address records, no CNAME)
www vs bare domain	Same network knbk.dk: 104.21.48.125 172.67.151.151 2606:4700:3033::6815:307d 2606:4700:3035::ac43:9797 (AS13335) www.knbk.dk: 104.21.48.125 172.67.151.151 2606:4700:3033::6815:307d 2606:4700:3035::ac43:9797 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.knbk.dk	bj4D1qsvp9TK9jBsjj06OkYeaonw8TdL-GYbpjv5mHc
TXT	_acme-challenge.knbk.dk	r3_LBE1Hb6eF54kRxdr1NpvYAehWHu9qRcGQL3O2GHk

🔗 TLSA / DANE#

4 records 55ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…

🔐 DNSSEC#

101ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2413212640
Primary NS (MNAME)	duke.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-08-18 04:21:01

Field	Value
Registrar	ONE.COM A/S
Registered	2024-09-26
Expires	2026-09-25 (expired)

📋 WHOIS#

⏱️ Lookup Timing#

30ms

28ms

AAAA

26ms

TXT

140ms

CAA

30ms

HTTPS

22ms

TLSA

55ms

SOA

0ms

MTA-STS

40ms

DNSSEC

101ms

SRV

54ms

Total

697ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-03 05:32:01	1577ms	2 NS 2 A 4 MX	🔓 Insecure
2026-09-01 00:46:07	749ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-28 02:55:15	672ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-27 01:40:17 shown	697ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-18 04:20:18	1242ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-16 19:13:50	3837ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-16 17:25:35	882ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-07 03:37:13	8941ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-02 14:12:43	9756ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-21 03:41:33	1004ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-17 14:19:36	2057ms	2 NS 1 A 4 MX	🔒 Secure