cyso.dk is a .dk domain served by 2 nameservers (ns1.sqr.nl, ns2.sqr.domains). It was registered on 28 August 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 37.46.140.12 is hosted by Cyso Group B.V. (AS25151) in The Netherlands. Mail is handled by shibaoshan.cyso.net, mail.cyso.nl and 2 more. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 37.46.140.12 | 3600s | redirect2-sqr.cyso.net | AS25151 | Cyso Group B.V. | 37.46.136.0/21 | 🇳🇱 The Netherlands | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 5 | 900s | shibaoshan.cyso.net | 217.170.2.236 | free.cyso.net | — |
| 10 | 900s | mail.cyso.nl | 85.158.200.96 | free.cyso.net | AS25151 Cyso Group B.V. |
| 20 | 900s | mx1.cyso.net | 85.158.200.78 | mx1.cyso.net | AS25151 Cyso Group B.V. |
| 30 | 900s | mx2.cyso.net | 85.158.202.246 | free.cyso.net | AS25151 Cyso Group B.V. |
| www | Address record (no CNAME) |
| 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 | 2023050400 |
| Primary NS (MNAME) | ns1.sqr.nl |
| Responsible (RNAME) | hostmaster@cyso.dk |
| Refresh | 16384s |
| Retry | 2048s |
| Expire | 1048576s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Realtime Register B.V. |
| Registered | 2004-08-28 |
| Expires | 2027-08-31 (318d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-12 07:56:16 shown | 3186ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-08-26 02:36:32 | 1918ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-07-21 22:30:06 | 17801ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-07-02 00:10:23 | 1899ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-16 23:42:21 | 1986ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-16 23:30:49 | 1762ms | 2 NS 1 A 4 MX | 🔓 Insecure |