tudseborg.dk

📜 Historical scan 2026-09-07 16:04:26 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tudseborg.dk is a .dk domain served by 2 nameservers (tate.ns.cloudflare.com, zita.ns.cloudflare.com). It was registered on 20 May 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.25.187 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.protonmail.ch. 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 27ms

Nameserver	IP addresses	PTR	ASN / ISP
tate.ns.cloudflare.com	108.162.195.191 162.159.44.191 172.64.35.191 2606:4700:58::a29f:2cbf 2803:f800:50::6ca2:c3bf 2a06:98c1:50::ac40:23bf	tate.ns.cloudflare.com tate.ns.cloudflare.com tate.ns.cloudflare.com tate.ns.cloudflare.com tate.ns.cloudflare.com tate.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
zita.ns.cloudflare.com	108.162.192.243 172.64.32.243 173.245.58.243 2606:4700:50::adf5:3af3 2803:f800:50::6ca2:c0f3 2a06:98c1:50::ac40:20f3	zita.ns.cloudflare.com zita.ns.cloudflare.com zita.ns.cloudflare.com zita.ns.cloudflare.com zita.ns.cloudflare.com zita.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 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.25.187	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.134.121	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.protonmail.ch	176.119.200.128 185.205.70.128 185.70.42.128	mail.protonmail.ch mail.protonmail.ch mail.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG
20	300s	mail.protonmail.ch	176.119.200.128 185.205.70.128 185.70.42.128	mail.protonmail.ch mail.protonmail.ch mail.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG

🔷 AAAA Records (IPv6)#

2 records 52ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:8679	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:19bb	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 32ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.25.187,172.67.134.121 ech=AEX+DQBB6AAgACDRyTVmAIEMo4afhCTdBtocEYtRehL3cTAWETumvdG6dAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:8679,2606:4700:3036::6815:19bb

📝 TXT Records#

2 records 149ms

TXT Record
protonmail-verification=991e0e4428ba85985e3ab7a9d138fb9c01ed4302
v=spf1 include:_spf.protonmail.ch ~all

✉️ SPF#

Policy	Record (tudseborg.dk)
~all (soft fail)	v=spf1 include:_spf.protonmail.ch ~all

📨 DMARC#

Policy	Record (_dmarc.tudseborg.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#

latest probe, not this scan · checked 2026-10-08 11:56:00

www	NXDOMAIN
www vs bare domain	www does not resolve tudseborg.dk: 104.21.25.187 172.67.134.121 2606:4700:3031::ac43:8679 2606:4700:3036::6815:19bb (AS13335) www.tudseborg.dk: no address (all like this)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

2 records 47ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…

🔐 DNSSEC#

101ms

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	2413765719
Primary NS (MNAME)	tate.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-07-18 23:00:52

Field	Value
Registrar	Simply.com A/S
Registered	2026-05-20
Expires	2027-05-19 (212d)

📋 WHOIS#

⏱️ Lookup Timing#

27ms

34ms

42ms

AAAA

52ms

TXT

149ms

CAA

27ms

HTTPS

32ms

TLSA

47ms

SOA

0ms

MTA-STS

63ms

DNSSEC

101ms

SRV

53ms

Total

2597ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-20 21:36:51	950ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-13 18:57:53	1526ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-07 16:04:26 shown	2597ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-31 16:35:30	1826ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-18 23:00:05	1405ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 14:06:16	3434ms	2 NS 2 A 2 MX	🔓 Insecure