contentcasting.dk is a .dk domain served by 2 nameservers (guss.ns.cloudflare.com, pearl.ns.cloudflare.com). It first appeared in the .dk zone on 2 July 2026. Its website address 104.21.24.4 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by .. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 104.21.24.4 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.215.65 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::ac43:d741 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::6815:1804 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.24.4,172.67.215.65 ech=AEX+DQBBOgAgACAfUJprvYWuUEe0huICdQJl6KEVYUD7jXbPu8u6FLo5IgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:d741,2606:4700:3036::6815:1804 |
| Policy | Record (_dmarc.contentcasting.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 104.21.24.4 172.67.215.65 2606:4700:3034::ac43:d741 2606:4700:3036::6815:1804 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network contentcasting.dk: 104.21.24.4 172.67.215.65 2606:4700:3034::ac43:d741 2606:4700:3036::6815:1804 (AS13335) www.contentcasting.dk: 104.21.24.4 172.67.215.65 2606:4700:3034::ac43:d741 2606:4700:3036::6815:1804 (AS13335) |
| 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 | 2413623827 |
| Primary NS (MNAME) | guss.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 21:11:06 shown | 1010ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-01 04:06:44 | 636ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 17:15:37 | 2443ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 00:43:10 | 9435ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-07 19:05:38 | 2320ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-31 11:31:24 | 476ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-29 16:42:34 | 474ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 10:11:10 | 807ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-18 00:04:54 | 2157ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-02 08:54:48 | 1824ms | 2 NS 2 A 1 MX | 🔓 Insecure |