klausjensen.dk

📜 Historical scan 2026-10-01 03:10:07 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

klausjensen.dk is a .dk domain served by 2 nameservers (betty.ns.cloudflare.com, lars.ns.cloudflare.com). It was registered on 19 April 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.21.248 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, has no 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 93ms

Nameserver	IP addresses	PTR	ASN / ISP
betty.ns.cloudflare.com	108.162.192.75 172.64.32.75 173.245.58.75 2606:4700:50::adf5:3a4b 2803:f800:50::6ca2:c04b 2a06:98c1:50::ac40:204b	betty.ns.cloudflare.com betty.ns.cloudflare.com betty.ns.cloudflare.com betty.ns.cloudflare.com betty.ns.cloudflare.com betty.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lars.ns.cloudflare.com	108.162.193.195 172.64.33.195 173.245.59.195 2606:4700:58::adf5:3bc3 2803:f800:50::6ca2:c1c3 2a06:98c1:50::ac40:21c3	lars.ns.cloudflare.com lars.ns.cloudflare.com lars.ns.cloudflare.com lars.ns.cloudflare.com lars.ns.cloudflare.com lars.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 79ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.21.248	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.201.117	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	klausjensen.dk → 91.221.196.251
🔶 Autoconfig	klausjensen.dk → 91.221.196.251

🔷 AAAA Records (IPv6)#

2 records 100ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:15f8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:c975	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 140ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.21.248,172.67.201.117 ech=AEX+DQBBJwAgACC1gAs7SPXgb6WUAb5+aX6R6aWs2Ms7dQ85GugS6PsoGAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:15f8,2606:4700:3031::ac43:c975

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-14 13:34:16

www	91.221.196.251 (AS51468) (address records, no CNAME)
www vs bare domain	Different networks klausjensen.dk: 104.21.21.248 172.67.201.117 2606:4700:3031::6815:15f8 2606:4700:3031::ac43:c975 (AS13335) www.klausjensen.dk: 91.221.196.251 (AS51468) (all like this)
Wildcard	Yes: any name under the zone resolves

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.klausjensen.dk	kFfM5ICd8XDL0_aZwxX-1HhEGuVT1UBIPCkTLsWzi4c
TXT	_acme-challenge.klausjensen.dk	RIrd4eKf722BeH3e_Ia1O8Bvoj-lpJXsOXqc4eKSoTY

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

241ms

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

🏷️ SOA#

128ms

Field	Value
Serial	2416238460
Primary NS (MNAME)	betty.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 04:29:17

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-04-19
Expires	2027-05-31 (222d)

📋 WHOIS#

⏱️ Lookup Timing#

93ms

79ms

84ms

AAAA

100ms

TXT

588ms

CAA

146ms

HTTPS

140ms

TLSA

210ms

SOA

128ms

MTA-STS

169ms

DNSSEC

241ms

SRV

184ms

Total

2223ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 03:45:36	2461ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-01 03:10:07 shown	2223ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-30 02:52:59	1630ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-27 02:09:13	9469ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-23 23:22:30	588ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-15 17:20:36	761ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-12 19:53:51	929ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-05 18:59:12	760ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-01 01:37:43	1065ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-27 17:15:27	1056ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-23 12:59:52	859ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-22 12:05:38	9761ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 11:50:12	1099ms	2 NS 2 A 0 MX	🔓 Insecure