cuda.dk

📜 Historical scan 2026-10-04 05:57:43 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cuda.dk is a .dk domain served by 2 nameservers (aria.ns.cloudflare.com, sid.ns.cloudflare.com). It was registered on 21 August 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.55.238 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, has no 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 35ms

Nameserver	IP addresses	PTR	ASN / ISP
aria.ns.cloudflare.com	108.162.192.68 172.64.32.68 173.245.58.68 2606:4700:50::adf5:3a44 2803:f800:50::6ca2:c044 2a06:98c1:50::ac40:2044	aria.ns.cloudflare.com aria.ns.cloudflare.com aria.ns.cloudflare.com aria.ns.cloudflare.com aria.ns.cloudflare.com aria.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sid.ns.cloudflare.com	108.162.193.143 172.64.33.143 173.245.59.143 2606:4700:58::adf5:3b8f 2803:f800:50::6ca2:c18f 2a06:98c1:50::ac40:218f	sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com sid.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 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.55.238	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.174.114	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	cuda.dk → 94.130.106.211
🔶 Autoconfig	cuda.dk → 94.130.106.211

🔷 AAAA Records (IPv6)#

2 records 51ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:37ee	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:ae72	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 35ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.55.238,172.67.174.114 ech=AEX+DQBBJgAgACBS20qKQr2J9ago8oYiexT1lzyRIbfVKwCw+cFB+9/GOQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:37ee,2606:4700:3037::ac43:ae72

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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#

latest probe, not this scan · checked 2026-10-07 21:10:15

www	104.21.55.238 172.67.174.114 2606:4700:3031::6815:37ee 2606:4700:3037::ac43:ae72 (AS13335) (address records, no CNAME)
www vs bare domain	Same network cuda.dk: 104.21.55.238 172.67.174.114 2606:4700:3031::6815:37ee 2606:4700:3037::ac43:ae72 (AS13335) www.cuda.dk: 104.21.55.238 172.67.174.114 2606:4700:3031::6815:37ee 2606:4700:3037::ac43:ae72 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.cuda.dk	cuda.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

76ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

30ms

Field	Value
Serial	2416549791
Primary NS (MNAME)	aria.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 06:02:37

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2013-08-21
Expires	2027-08-31 (317d)

📋 WHOIS#

⏱️ Lookup Timing#

35ms

39ms

36ms

AAAA

51ms

TXT

184ms

CAA

43ms

HTTPS

35ms

TLSA

52ms

SOA

30ms

MTA-STS

65ms

DNSSEC

76ms

SRV

78ms

Total

431ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 21:10:15	464ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-04 05:57:43 shown	431ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-26 04:26:13	2418ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-24 05:34:48	836ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-22 03:11:50	3303ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-19 00:58:16	7132ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-16 15:04:19	2374ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-15 13:43:42	3492ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-07 12:24:41	1893ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-27 22:57:07	803ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-19 23:43:55	1299ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 23:10:22	417ms	2 NS 2 A 0 MX	🔓 Insecure