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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.96.86 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.175.134 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:af86 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3031::6815:6056 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.96.86,172.67.175.134 ech=AEX+DQBBJgAgACAHUadLCsbxGiazPHmGpxFqoHjAkSkYdqCyg7V8oe2UJAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:af86,2606:4700:3031::6815:6056 |
| 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) (all like this)www.atcomputing.dk: no address |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2409826318 |
| Primary NS (MNAME) | marge.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1998-05-06 |
| Expires | 2036-06-30 (3542d) |
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 |
|---|---|
| hardwareonline.dk | Punktum dk A/S (direct) |
| holauktion.dk | Punktum dk A/S (direct) |
| holdauktion.dk | Punktum dk A/S (direct) |
| 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 shown | 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 | 497ms | 2 NS 2 A 0 MX | 🔓 Insecure |