csb-system.dk is a .dk domain served by 2 nameservers (pns.dtag.de, secondary006.dtag.net). It was registered on 17 January 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.csb-system.de. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| pns.dtag.de | — | — | — |
| secondary006.dtag.net | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 100 | — | mail.csb-system.de | 217.7.0.115 217.7.0.115 |
mail02.csb.de mail02.csb.com |
AS3320 Deutsche Telekom AG AS3320 Deutsche Telekom AG |
| www CNAME | www.csb.com (all on csb.com) |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2025120802 |
| Primary NS (MNAME) | srvdns1 |
| Responsible (RNAME) | webmaster@csb.de |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Deutsche Telekom AG |
| Registered | 2007-01-17 |
| Expires | 2027-01-31 (104d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-28 07:39:46 | 9876ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-25 15:36:49 | 844ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-19 06:32:08 | 3749ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-19 04:29:56 | 1013ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-16 23:06:23 shown | 2576ms | 2 NS 0 A 1 MX | 🔓 Insecure |