preuthun.dk

📜 Historical scan 2026-06-20 12:12:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

preuthun.dk is a .dk domain served by 2 nameservers (archer.ns.cloudflare.com, gloria.ns.cloudflare.com). It was registered on 13 October 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.47.191 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.preuthun.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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 264ms

Nameserver	IP addresses	PTR	ASN / ISP
archer.ns.cloudflare.com	108.162.195.136 162.159.44.136 172.64.35.136 2606:4700:58::a29f:2c88 2803:f800:50::6ca2:c388 2a06:98c1:50::ac40:2388	archer.ns.cloudflare.com archer.ns.cloudflare.com archer.ns.cloudflare.com archer.ns.cloudflare.com archer.ns.cloudflare.com archer.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
gloria.ns.cloudflare.com	108.162.194.16 162.159.38.16 172.64.34.16 2606:4700:50::a29f:2610 2803:f800:50::6ca2:c210 2a06:98c1:50::ac40:2210	gloria.ns.cloudflare.com gloria.ns.cloudflare.com gloria.ns.cloudflare.com gloria.ns.cloudflare.com gloria.ns.cloudflare.com gloria.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 222ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.47.191	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.172.34	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 262ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.preuthun.dk	185.107.13.168	185-107-13-168.static.kviknet.net	AS204151 EWII Bredbaand A/S

🔷 AAAA Records (IPv6)#

2 records 221ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:2fbf	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:ac22	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 238ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.47.191,172.67.172.34 ech=AEX+DQBBxwAgACAmdfruNoRuWTzoiSZ8+3asFsQZjE+XdY90zWVN7y7MKgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:2fbf,2606:4700:3035::ac43:ac22

📝 TXT Records#

3 records 571ms

TXT Record
apple-domain=7izc09tghuj6gD7z
ca3-8aaaad86423448cead2d9fc2e4f5bcd3
v=spf1 a mx -all

✉️ SPF#

Policy	Record (preuthun.dk)
-all (hard fail)	v=spf1 a mx -all

📨 DMARC#

Policy	Record (_dmarc.preuthun.dk)
p=quarantine	v=DMARC1;p=quarantine;rua=mailto:admin@preuthun.dk

📬 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 04:35:37

www	104.21.47.191 172.67.172.34 2606:4700:3033::6815:2fbf 2606:4700:3035::ac43:ac22 (AS13335) (address records, no CNAME)
www vs bare domain	Same network preuthun.dk: 104.21.47.191 172.67.172.34 2606:4700:3033::6815:2fbf 2606:4700:3035::ac43:ac22 (AS13335) www.preuthun.dk: 104.21.47.191 172.67.172.34 2606:4700:3033::6815:2fbf 2606:4700:3035::ac43:ac22 (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

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~1024 bit below 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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

444ms

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

🏷️ SOA#

299ms

Field	Value
Serial	2407208546
Primary NS (MNAME)	archer.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 13:36:01

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2020-10-13
Expires	2026-10-31 (10d)

🔗 Same registrant#

3 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
ap-tech.dk	Punktum dk A/S (direct)
pap-isolering.dk	Punktum dk A/S (direct)
papisolering.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

264ms

222ms

262ms

AAAA

221ms

TXT

571ms

CAA

171ms

HTTPS

238ms

TLSA

298ms

SOA

299ms

MTA-STS

306ms

DNSSEC

444ms

SRV

323ms

Total

3444ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 04:35:37	2670ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-06 08:17:25	1884ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-01 07:08:30	724ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-26 19:40:16	2532ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-21 02:34:17	1266ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-30 14:22:27	2362ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-27 03:06:26	608ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-08 09:38:29	18021ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-12 08:44:41	1135ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-01 11:50:12	936ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-25 00:33:47	2600ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-23 17:55:54	1167ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-20 12:12:51 shown	3444ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-18 03:11:41	955ms	2 NS 2 A 1 MX	🔒 Secure