audio.dk is a .dk domain served by 2 nameservers (anton.ns.cloudflare.com, love.ns.cloudflare.com). It was registered on 17 March 1995 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.45.45 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.45.45 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.209.177 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.45.45 |
| 🔶 Autoconfig | 104.21.45.45 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::ac43:d1b1 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:2d2d | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.45.45,172.67.209.177 ech=AEX+DQBBUwAgACA3iwALyxBizgvgp0M5VKnghSd46K7Dg4/aFi4jsVdgSgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:d1b1,2606:4700:3037::6815:2d2d |
| www | 104.21.45.45 172.67.209.177 2606:4700:3031::ac43:d1b1 2606:4700:3037::6815:2d2d (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| 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 | 2415158361 |
| Primary NS (MNAME) | anton.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 | 1995-03-17 |
| Expires | 2027-03-31 (164d) |
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 |
|---|---|---|---|
| 2026-10-04 05:39:53 | 613ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-01 09:13:49 | 1079ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-30 09:00:36 | 741ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-30 01:20:09 | 1113ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-27 00:16:12 | 779ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-18 21:57:42 shown | 1477ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-15 05:44:46 | 2179ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-09 09:16:54 | 2137ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-31 17:47:58 | 975ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-28 06:18:53 | 9860ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-22 17:14:57 | 1490ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-20 17:03:56 | 14701ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-04 01:56:57 | 2252ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-26 01:33:04 | 1287ms | 2 NS 2 A 3 MX | ❓ Unknown |
| 2026-06-22 22:52:20 | 1621ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-16 13:49:27 | 1184ms | 2 NS 2 A 3 MX | 🔓 Insecure |