klausbaerentsen.dk

Records from scan: 2026-10-14 15:17:19 · 2107ms total · last checked 2026-10-18 17:47 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

klausbaerentsen.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 104.21.29.36 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.klausbaerentsen.dk. 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#

2 records 198ms

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 92ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.29.36	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.171.76	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 77ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.klausbaerentsen.dk	107.6.136.42	amsr201.websitehostserver.net	AS32475 Internap Holding LLC

🔷 AAAA Records (IPv6)#

2 records 219ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:ab4c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:1d24	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 205ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.29.36,172.67.171.76 ech=AEX+DQBBEwAgACABAWTjdCgETEUk4kqQAGNh1Bi7jAmXQlIF2T2/xgUMcwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:ab4c,2606:4700:3035::6815:1d24

📝 TXT Records#

1 records 573ms

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

✉️ SPF#

Policy	Record (klausbaerentsen.dk)
-all (hard fail)	v=spf1 a mx ip4:107.6.136.42 -all

📨 DMARC#

Policy	Record (_dmarc.klausbaerentsen.dk)
p=quarantine	v=DMARC1; p=quarantine;

📬 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 15:17:19

www	104.21.29.36 172.67.171.76 2606:4700:3030::ac43:ab4c 2606:4700:3035::6815:1d24 (AS13335) (address records, no CNAME)
www vs bare domain	Same network klausbaerentsen.dk: 104.21.29.36 172.67.171.76 2606:4700:3030::ac43:ab4c 2606:4700:3035::6815:1d24 (AS13335) www.klausbaerentsen.dk: 104.21.29.36 172.67.171.76 2606:4700:3030::ac43:ab4c 2606:4700:3035::6815:1d24 (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

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.klausbaerentsen.dk	eAtiXFZnHueoFyGRde80-g-bD7aWUc4yXoHUosAH290
TXT	_acme-challenge.klausbaerentsen.dk	YudXXOPEizQYX0_7FlLqUI41WJmChN0QbNGONwli7xA

🔗 TLSA / DANE#

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

🔐 DNSSEC#

310ms

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

🏷️ SOA#

63ms

Field	Value
Serial	2417432546
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 2026-10-14 15:33:29

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2020-11-20
Expires	2026-11-30 (42d)

🔗 Same registrant#

22 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
alfa-nova.dk	Punktum dk A/S (direct)
alfanova.dk	Punktum dk A/S (direct)
aroslejren.dk	Punktum dk A/S (direct)
bygbaeredygtigt.dk	Punktum dk A/S (direct)
christiandamsgaard.dk	Punktum dk A/S (direct)
detsidsteord.dk	Punktum dk A/S (direct)
gymdrama.dk	Punktum dk A/S (direct)
johnnysjokes.dk	Punktum dk A/S (direct)
kaloeviggruppe.dk	Punktum dk A/S (direct)
kaløviggruppe.dk	Punktum dk A/S (direct)
leneabildgaardknudsen.dk	Punktum dk A/S (direct)
mercy-scouts.dk	Punktum dk A/S (direct)
plante-magi.dk	Punktum dk A/S (direct)
retrospective.dk	Punktum dk A/S (direct)
retrospectives.dk	Punktum dk A/S (direct)
scrumstuff.dk	Punktum dk A/S (direct)
tofthamming.dk	Punktum dk A/S (direct)
udstilleradmin.dk	Punktum dk A/S (direct)
udstillerdemo.dk	Punktum dk A/S (direct)
udstillerguide.dk	Punktum dk A/S (direct)
udstillerguiden.dk	Punktum dk A/S (direct)
virksomhedsteori.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

198ms

92ms

77ms

AAAA

219ms

TXT

573ms

CAA

223ms

HTTPS

205ms

TLSA

364ms

SOA

63ms

MTA-STS

279ms

DNSSEC

310ms

SRV

278ms

Total

2107ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 15:17:19 shown	2107ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-03 20:58:20	1037ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-26 19:53:52	995ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-22 03:58:37	1354ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-18 23:58:27	1282ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-27 13:20:11	1131ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-06 22:59:54	2333ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-18 18:20:52	2292ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-12 11:48:43	16820ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-28 05:55:48	1176ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-26 18:13:03	1372ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-20 18:39:35	1548ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-18 04:23:08	3933ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-18 04:12:42	9101ms	2 NS 2 A 1 MX	🔒 Secure