atcomputing.dk

📜 Historical scan 2026-06-16 13:47:30 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

atcomputing.dk is a .dk domain served by 2 nameservers (marge.ns.cloudflare.com, plato.ns.cloudflare.com). It was registered on 6 May 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.96.86 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 59ms

Nameserver	IP addresses	PTR	ASN / ISP
marge.ns.cloudflare.com	—	—	—
plato.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 55ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.96.86	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.175.134	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 47ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:af86	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:6056	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 60ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.96.86,172.67.175.134 ech=AEX+DQBBlwAgACA41AMgc1sbai2CoOVhilCbC1JktSaHjQMIOv4l671bLwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:af86,2606:4700:3036::6815:6056

📝 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 2026-10-16 04:59:18

www	NXDOMAIN
www vs bare domain	www does not resolve atcomputing.dk: 104.21.96.86 172.67.175.134 2606:4700:3030::ac43:af86 2606:4700:3031::6815:6056 (AS13335) www.atcomputing.dk: no address (all like this)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

153ms

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

🏷️ SOA#

47ms

Field	Value
Serial	2404725096
Primary NS (MNAME)	marge.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 14:22:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1998-05-06
Expires	2036-06-30 (3543d)

🔗 Same registrant#

2 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
holauktion.dk	Punktum dk A/S (direct)
holdauktion.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

59ms

55ms

49ms

AAAA

47ms

TXT

133ms

CAA

46ms

HTTPS

60ms

TLSA

119ms

SOA

47ms

MTA-STS

52ms

DNSSEC

153ms

SRV

0ms

Total

497ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 04:59:18	1136ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-01 07:08:39	435ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-23 18:46:17	664ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-17 11:37:10	1118ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-31 20:16:56	554ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-18 01:05:28	2762ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-18 05:57:31	2168ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-20 00:20:56	2365ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 13:47:30 shown	497ms	2 NS 2 A 0 MX	🔓 Insecure