discoversystems.dk is a .dk domain served by 2 nameservers (darwin.ns.cloudflare.com, zelda.ns.cloudflare.com). It was registered on 11 July 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.11.4 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 104.21.11.4 | 600s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.164.223 | 600s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3037::6815:b04 | 600s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:a4df | 600s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.11.4,172.67.164.223 ech=AEX+DQBBwAAgACBcatv0vcdu5GkpvPstOSLsHt4RtzmMTrUkgy4nfjAxUQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3037::6815:b04,2606:4700:3037::ac43:a4df |
| TXT Record |
|---|
| google-site-verification=IblLIVRautVKdMM18oRHhfSGHPAIIYgXhxS7efcvQwg |
| mandrill_verify.qlP_6rTKlF4YwH3TuR6Ofw |
| v=spf1 include:servers.mcsv.net -all |
| Policy | Record (discoversystems.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:servers.mcsv.net -all |
| Policy | Record (_dmarc.discoversystems.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | edge.netkant.eu (all on netkant.eu) |
| www vs bare domain | Same network discoversystems.dk: 162.19.250.219 51.38.38.70 51.68.137.74 (AS16276) www.discoversystems.dk: 162.19.250.219 51.38.38.70 51.68.137.74 (AS16276) |
| Wildcard | No |
DNS lookups: 1/10 · policy: -all
No problems found| 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 | 2405855857 |
| Primary NS (MNAME) | darwin.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Netkant ApS |
| Registered | 2002-07-11 |
| Expires | 2027-09-30 (348d) |
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).
| Domain | Registrar |
|---|---|
| kaldesystem.dk | Netkant ApS |
| tjenersystem.dk | Netkant ApS |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 05:36:50 | 1124ms | 2 NS 3 A 0 MX | 🔓 Insecure |
| 2026-09-29 19:24:45 | 795ms | 2 NS 3 A 0 MX | 🔓 Insecure |
| 2026-09-29 01:19:59 | 1064ms | 2 NS 3 A 0 MX | 🔓 Insecure |
| 2026-09-23 23:43:18 | 593ms | 2 NS 3 A 0 MX | 🔓 Insecure |
| 2026-09-19 07:54:49 | 694ms | 2 NS 3 A 0 MX | 🔓 Insecure |
| 2026-09-11 21:28:24 | 2972ms | 2 NS 3 A 0 MX | 🔓 Insecure |
| 2026-08-12 17:27:19 | 1166ms | 2 NS 3 A 0 MX | 🔓 Insecure |
| 2026-08-08 22:02:09 | 1398ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-22 04:10:38 | 807ms | 2 NS 2 A 0 MX | ❓ Unknown |
| 2026-07-15 20:43:43 | 8988ms | 2 NS 2 A 0 MX | ❓ Unknown |
| 2026-06-21 17:35:40 shown | 472ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-19 16:52:36 | 2214ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-19 12:06:59 | 739ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 03:23:45 | 327ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 03:21:15 | 440ms | 2 NS 2 A 0 MX | 🔓 Insecure |