duznet.dk is a .dk domain served by 2 nameservers (coco.ns.cloudflare.com, dom.ns.cloudflare.com). It was registered on 11 July 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.58.57 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.duznet.dk. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.58.57 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.168.6 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.duznet.dk | 104.21.58.57 172.67.168.6 2606:4700:3031::6815:3a39 2606:4700:3032::ac43:a806 |
— — — — |
AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.58.57 |
| 🔶 Autoconfig | 104.21.58.57 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:3a39 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3032::ac43:a806 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.58.57,172.67.168.6 ech=AEX+DQBBdQAgACBHTt+nUMCnx4YXdFUIPvAaY+hxrWwea/aKPGQ064u7UwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:3a39,2606:4700:3032::ac43:a806 |
| www | 104.21.58.57 172.67.168.6 2606:4700:3031::6815:3a39 2606:4700:3032::ac43:a806 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.duznet.dk | 4dvB36UfmeUvdsE5r8NJ-kbuE5ou8MOqJJ6EKRIzsTo |
| TXT | _acme-challenge.duznet.dk | DmieuFx_Uwzl3cks2_DuPvnYLCCWE4lWI2TFifdFk_A |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2416168374 |
| Primary NS (MNAME) | coco.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 | 2008-07-11 |
| Expires | 2027-07-31 (281d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 00:30:46 | 2500ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 23:07:49 | 782ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 20:10:25 | 1053ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-29 20:03:41 shown | 1792ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-17 07:11:59 | 1377ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-06 03:59:25 | 1840ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 20:28:37 | 698ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-20 06:15:06 | 13159ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-03 14:32:41 | 1024ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-27 18:32:18 | 17686ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-06 13:46:27 | 1113ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-05 10:24:27 | 1725ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-04 14:53:28 | 1232ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-29 09:23:37 | 856ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 06:15:58 | 724ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 12:05:35 | 940ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 05:05:31 | 605ms | 2 NS 2 A 1 MX | 🔓 Insecure |