arkitræ.dk is a .dk domain served by 2 nameservers (kip.ns.cloudflare.com, lucy.ns.cloudflare.com). It was registered on 5 January 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.5.209 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by cluster5.eu.messagelabs.com, cluster5a.eu.messagelabs.com. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.5.209 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.133.216 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 139.162.190.149 |
| 🔶 Autoconfig | 139.162.190.149 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::ac43:85d8 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::6815:5d1 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.5.209,172.67.133.216 ech=AEX+DQBBBgAgACAHE/vjUED/iiSBoHKZdSdf+klWd/DniubGg33d1BakXwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:85d8,2606:4700:3035::6815:5d1 |
| www | 104.21.5.209 172.67.133.216 2606:4700:3035::6815:5d1 2606:4700:3035::ac43:85d8 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxdomain |
| Field | Value |
|---|---|
| Serial | 2405227898 |
| Primary NS (MNAME) | kip.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 | 2006-01-05 |
| Expires | 2027-01-31 (98d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-23 12:35:37 | 1024ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-11 01:44:13 | 1047ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-03 17:13:08 | 731ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-27 23:12:42 | 784ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-24 13:18:00 | 1587ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-26 10:00:14 | 1136ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-24 23:05:57 | 4418ms | 2 NS 2 A 2 MX | ❓ Unknown |
| 2026-06-22 09:36:55 | 414ms | 0 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-21 23:22:55 | 6932ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-21 10:15:10 | 1161ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 20:55:53 shown | 813ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-19 04:57:22 | 341ms | 0 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-16 13:40:26 | 900ms | 2 NS 2 A 2 MX | 🔒 Secure |