klausbærentsen.dk xn--klausbrentsen-8fb.dk

Records from scan: 2026-10-14 12:55:04 · 1048ms total · last checked 2026-10-22 09:44 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

klausbærentsen.dk is a .dk domain served by 2 nameservers (ray.ns.cloudflare.com, sue.ns.cloudflare.com). It was registered on 20 November 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.11.234 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.xn--klausbrentsen-8fb.dk. The zone is DNSSEC-signed and validates, has no 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#

2 records 32ms

Nameserver	IP addresses	PTR	ASN / ISP
ray.ns.cloudflare.com	108.162.193.138 172.64.33.138 173.245.59.138 2606:4700:58::adf5:3b8a 2803:f800:50::6ca2:c18a 2a06:98c1:50::ac40:218a	ray.ns.cloudflare.com ray.ns.cloudflare.com ray.ns.cloudflare.com ray.ns.cloudflare.com ray.ns.cloudflare.com ray.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sue.ns.cloudflare.com	108.162.192.145 172.64.32.145 173.245.58.145 2606:4700:50::adf5:3a91 2803:f800:50::6ca2:c091 2a06:98c1:50::ac40:2091	sue.ns.cloudflare.com sue.ns.cloudflare.com sue.ns.cloudflare.com sue.ns.cloudflare.com sue.ns.cloudflare.com sue.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 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.11.234	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.131.213	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.xn--klausbrentsen-8fb.dk	107.6.136.42	amsr201.websitehostserver.net	AS32475 Internap Holding LLC

🔷 AAAA Records (IPv6)#

2 records 35ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:83d5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:bea	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 33ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.11.234,172.67.131.213 ech=AEX+DQBBZAAgACAkrEn6gECgdEWk5PMhWUOSVTCvsfM0cKj3LV+x2nl/MQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:83d5,2606:4700:3034::6815:bea

📝 TXT Records#

1 records 231ms

TXT Record
v=spf1 a mx ip4:107.6.136.42 ?all

✉️ SPF#

Policy	Record (klausbærentsen.dk)
?all (neutral)	v=spf1 a mx ip4:107.6.136.42 ?all

📨 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#

checked 2026-10-14 12:55:04

www	104.21.11.234 172.67.131.213 2606:4700:3033::ac43:83d5 2606:4700:3034::6815:bea (AS13335) (address records, no CNAME)
www vs bare domain	Same network klausbærentsen.dk: 104.21.11.234 172.67.131.213 2606:4700:3033::ac43:83d5 2606:4700:3034::6815:bea (AS13335) www.klausbærentsen.dk: 104.21.11.234 172.67.131.213 2606:4700:3033::ac43:83d5 2606:4700:3034::6815:bea (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ?all

warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.klausbærentsen.dk	TWqfLxecJbHxtn7J-s1A0LXMU6xNjMhiYoxPCy_6mm4
TXT	_acme-challenge.klausbærentsen.dk	lmR1tDQT3krZDSEzgDSV-aeQWKYaChihlHP5EVSqdBA

🔗 TLSA / DANE#

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

🔐 DNSSEC#

69ms

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

🏷️ SOA#

33ms

Field	Value
Serial	2417432636
Primary NS (MNAME)	ray.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-04 22:17:29

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2020-11-20
Expires	2026-11-30 (38d)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

36ms

AAAA

35ms

TXT

231ms

CAA

33ms

HTTPS

33ms

TLSA

107ms

SOA

33ms

MTA-STS

64ms

DNSSEC

69ms

SRV

66ms

Total

1048ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 12:55:04 shown	1048ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-05 21:42:42	1078ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-04 21:38:28	867ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-03 21:35:53	629ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-01 21:33:17	6266ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-29 20:58:16	1228ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-28 20:47:45	838ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-27 20:30:58	707ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-26 20:19:54	873ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-24 20:08:19	932ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-23 19:44:29	2050ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-15 10:45:56	1834ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-04 01:08:36	2365ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-30 17:39:46	1186ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-27 17:04:42	672ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-08 01:38:50	1954ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-10 17:20:24	3280ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-26 05:36:36	2650ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-25 09:34:59	1523ms	2 NS 2 A 1 MX	⚠️ Bogus
2026-06-21 10:00:53	348ms	0 NS 0 A 0 MX	🔒 Secure
2026-06-18 04:57:05	1197ms	2 NS 2 A 1 MX	🔒 Secure