anthrax.dk is a .dk domain served by 2 nameservers (becky.ns.cloudflare.com, cleo.ns.cloudflare.com). It was registered on 25 November 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.21.233 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, smtp.google.com and 6 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 |
|---|---|---|---|---|---|---|---|
| 104.21.21.233 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.200.246 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:15e9 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:c8f6 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.21.233,172.67.200.246 ech=AEX+DQBBZwAgACB8MkD9IkXIScHP90pmctX+VcubFlOHleZ/exJUC+6UFQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:15e9,2606:4700:3035::ac43:c8f6 |
| www | 104.21.21.233 172.67.200.246 2606:4700:3030::6815:15e9 2606:4700:3035::ac43:c8f6 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
| 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 | 2406592172 |
| Primary NS (MNAME) | becky.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Domeneshop AS |
| Registered | 2015-11-25 |
| Expires | 2027-11-30 (409d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 14:59:11 | 8711ms | 2 NS 2 A 8 MX | 🔓 Insecure |
| 2026-09-30 08:45:06 | 1430ms | 2 NS 2 A 8 MX | 🔓 Insecure |
| 2026-09-04 21:13:04 | 9836ms | 2 NS 2 A 8 MX | 🔓 Insecure |
| 2026-08-11 22:26:32 | 8332ms | 2 NS 2 A 8 MX | 🔓 Insecure |
| 2026-08-09 20:23:29 | 10324ms | 2 NS 2 A 8 MX | 🔓 Insecure |
| 2026-08-06 19:50:01 | 2401ms | 2 NS 2 A 8 MX | 🔓 Insecure |
| 2026-06-20 19:33:17 shown | 2503ms | 2 NS 2 A 8 MX | 🔓 Insecure |
| 2026-06-20 18:20:47 | 1131ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 12:51:04 | 2977ms | 2 NS 2 A 8 MX | 🔓 Insecure |