haderfck.dk is a .dk domain served by 2 nameservers (aron.ns.cloudflare.com, carter.ns.cloudflare.com). It was registered on 30 January 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.20.59 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 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 |
|---|---|---|---|---|---|---|---|
| 104.21.20.59 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.191.208 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.20.59 |
| 🔶 Autoconfig | 104.21.20.59 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::ac43:bfd0 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:143b | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.20.59,172.67.191.208 ech=AEX+DQBBgQAgACDtEfnoK3QcEg9sJqZo5KRnLSof1Ih/l6BkMJT1WLIpbQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:bfd0,2606:4700:3037::6815:143b |
| www | 104.21.20.59 172.67.191.208 2606:4700:3035::ac43:bfd0 2606:4700:3037::6815:143b (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network haderfck.dk: 104.21.20.59 172.67.191.208 2606:4700:3035::ac43:bfd0 2606:4700:3037::6815:143b (AS13335) www.haderfck.dk: 104.21.20.59 172.67.191.208 2606:4700:3035::ac43:bfd0 2606:4700:3037::6815:143b (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.haderfck.dk | GDrc_VDr3655h3R3ySfMjHwY3ApSZ5OUKc1N8s0xW2Y |
| TXT | _acme-challenge.haderfck.dk | wLQ2jJcY1sAMpSUjcmY5XLRdnSBXKRYJEkqalBAG63M |
| 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 | 2414122626 |
| Primary NS (MNAME) | aron.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | MONTES A/S |
| Registered | 2019-01-30 |
| Expires | 2027-01-31 (104d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-05 05:01:28 | 1588ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-24 02:43:10 | 610ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-12 00:44:06 | 1324ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-07 02:51:05 shown | 1097ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-27 17:59:56 | 776ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-06 13:47:07 | 862ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-26 19:19:53 | 649ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-24 03:04:43 | 999ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-23 17:51:36 | 2979ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-23 04:24:50 | 1145ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 10:58:26 | 1618ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-21 08:17:20 | 1306ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-21 06:39:14 | 2425ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-20 16:51:51 | 1163ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 10:47:31 | 685ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 10:45:21 | 920ms | 2 NS 2 A 0 MX | 🔓 Insecure |