filterexperten.dk is a .dk domain served by 2 nameservers (ian.ns.cloudflare.com, linda.ns.cloudflare.com). It was registered on 27 August 2026 (WHOIS) and first appeared in the .dk zone on 28 August 2026. Its website address 104.21.39.21 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 |
|---|---|---|---|---|---|---|---|
| 104.21.39.21 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.142.55 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:2715 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:8e37 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.39.21,172.67.142.55 ech=AEX+DQBBgQAgACAanbaXRSVdtGRbxmzE5o97ht6mWMOhLIvzcad+pv37HAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:2715,2606:4700:3037::ac43:8e37 |
| www | 104.21.39.21 172.67.142.55 2606:4700:3030::6815:2715 2606:4700:3037::ac43:8e37 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network filterexperten.dk: 104.21.39.21 172.67.142.55 2606:4700:3030::6815:2715 2606:4700:3037::ac43:8e37 (AS13335) www.filterexperten.dk: 104.21.39.21 172.67.142.55 2606:4700:3030::6815:2715 2606:4700:3037::ac43:8e37 (AS13335) |
| Wildcard | No |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.filterexperten.dk | APjTrOMkUHis_jjCEq5JsyoUAl-FVFKAvbduP74roGo |
| TXT | _acme-challenge.filterexperten.dk | Gf_o6rzOyDQWKuwSayiRqW0LFmJcWKbpLtx-SwJ2x-A |
| 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 | 2418483513 |
| Primary NS (MNAME) | ian.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Openprovider |
| Registered | 2026-08-27 |
| Expires | 2027-08-26 (303d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-26 08:41:17 shown | 479ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-06 23:26:40 | 2886ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-29 19:04:52 | 467ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-08 06:16:56 | 2865ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-29 11:12:22 | 932ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-28 08:36:43 | 1099ms | 2 NS 0 A 0 MX | 🔓 Insecure |