casumoonline.dk is a .dk domain served by 2 nameservers (armando.ns.cloudflare.com, laura.ns.cloudflare.com). It was registered on 11 August 2026 (WHOIS) and first appeared in the .dk zone on 12 August 2026. Its website address 104.21.56.51 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 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 |
|---|---|---|---|---|---|---|---|
| 104.21.56.51 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.177.253 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:3833 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3032::ac43:b1fd | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.56.51,172.67.177.253 ech=AEX+DQBBWgAgACA7xsERYDjDfCLkDiL2J2aFI/DxvJ1s8W8zy0hj0VipdwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:3833,2606:4700:3032::ac43:b1fd |
| TXT Record |
|---|
| google-site-verification=CdphPjb0jFZomC7J3ZLjDX4DoLGKs2dlYw75u9SbtMk |
| www | 104.21.56.51 172.67.177.253 2606:4700:3030::6815:3833 2606:4700:3032::ac43:b1fd (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network casumoonline.dk: 104.21.56.51 172.67.177.253 2606:4700:3030::6815:3833 2606:4700:3032::ac43:b1fd (AS13335) www.casumoonline.dk: 104.21.56.51 172.67.177.253 2606:4700:3030::6815:3833 2606:4700:3032::ac43:b1fd (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 | 2417575599 |
| Primary NS (MNAME) | armando.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Dynadot LLC |
| Registered | 2026-08-11 |
| Expires | 2027-08-10 (297d) |
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 |
|---|---|---|---|
| 2026-10-16 00:02:10 shown | 3220ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-01 07:33:05 | 622ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-26 23:43:50 | 521ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-20 19:05:15 | 9521ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-26 13:10:43 | 491ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-21 14:06:31 | 2669ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-19 09:06:34 | 1724ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-18 09:04:27 | 1788ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-12 08:40:47 | 6186ms | 2 NS 3 A 0 MX | 🔓 Insecure |