kurtmann.dk

📜 Historical scan 2026-09-25 22:39:04 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kurtmann.dk is a .dk domain served by 2 nameservers (dawn.ns.cloudflare.com, rodney.ns.cloudflare.com). It was registered on 28 February 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.58.250 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 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 138ms

Nameserver	IP addresses	PTR	ASN / ISP
dawn.ns.cloudflare.com	108.162.192.106 172.64.32.106 173.245.58.106 2606:4700:50::adf5:3a6a 2803:f800:50::6ca2:c06a 2a06:98c1:50::ac40:206a	dawn.ns.cloudflare.com dawn.ns.cloudflare.com dawn.ns.cloudflare.com dawn.ns.cloudflare.com dawn.ns.cloudflare.com dawn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
rodney.ns.cloudflare.com	108.162.193.228 172.64.33.228 173.245.59.228 2606:4700:58::adf5:3be4 2803:f800:50::6ca2:c1e4 2a06:98c1:50::ac40:21e4	rodney.ns.cloudflare.com rodney.ns.cloudflare.com rodney.ns.cloudflare.com rodney.ns.cloudflare.com rodney.ns.cloudflare.com rodney.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 244ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.58.250	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.166.131	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 164ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	2a00:1450:4010:c0a::1b 2a00:1450:4010:c0a::1b 74.125.131.26	lm-in-f27.1e100.net lm-in-x1b.1e100.net lu-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 239ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:3afa	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:a683	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 178ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.58.250,172.67.166.131 ech=AEX+DQBBmQAgACBoUSoQTwigZwKqBA2FBkmo632cV+e0mnjSjLMnzP6kcQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:3afa,2606:4700:3033::ac43:a683

📝 TXT Records#

1 records 486ms

TXT Record
v=spf1 include:_spf.google.com include:spf.improvmx.com ~all

✉️ SPF#

Policy	Record (kurtmann.dk)
~all (soft fail)	v=spf1 include:_spf.google.com include:spf.improvmx.com ~all

📨 DMARC#

Policy	Record (_dmarc.kurtmann.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 2026-10-07 19:27:22

www	104.21.58.250 172.67.166.131 2606:4700:3031::6815:3afa 2606:4700:3033::ac43:a683 (AS13335) (address records, no CNAME)
www vs bare domain	Same network kurtmann.dk: 104.21.58.250 172.67.166.131 2606:4700:3031::6815:3afa 2606:4700:3033::ac43:a683 (AS13335) www.kurtmann.dk: 104.21.58.250 172.67.166.131 2606:4700:3031::6815:3afa 2606:4700:3033::ac43:a683 (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.kurtmann.dk	ScXwx7NKtt8LzzVNfGuzZy7hy7kCRL-VB9AdpVTZOvo
TXT	_acme-challenge.kurtmann.dk	UalgLIGHWnkL5uZx4R9exRBAONQxoBnEPLt6__-b5lg

🔗 TLSA / DANE#

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

🔐 DNSSEC#

497ms

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	2415845073
Primary NS (MNAME)	dawn.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-20 05:55:38

Field	Value
Registrar	Domænehajen ApS
Registered	2000-02-28
Expires	2027-03-31 (161d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

138ms

244ms

164ms

AAAA

239ms

TXT

486ms

CAA

230ms

HTTPS

178ms

TLSA

152ms

SOA

0ms

MTA-STS

367ms

DNSSEC

497ms

SRV

235ms

Total

1970ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 14:36:53	591ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-01 00:33:55	696ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-26 10:14:02	779ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-25 22:39:04 shown	1970ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-02 08:40:39	1692ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-28 13:07:21	2018ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-27 20:22:18	3035ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-27 08:22:17	1263ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-25 16:48:46	1063ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-21 08:58:42	702ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 22:08:59	878ms	2 NS 2 A 5 MX	🔓 Insecure