ctsys.de - dns.ninja
ctsys.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 95.216.89.100🇫🇮 Hetzner95.216.0.0/16 HETZNER-DC | ||||||
| PTR | websrv.ctsys.de | ||||||
| NS | dns1.regsystem.net ⭐ | ||||||
| A | 2a02:20a8:a000:4::2🇩🇪 Equinix2a02:20a8::/32 Frankfurt | ||||||
| PTR | frigg.dnsnodes.com | ||||||
| A | 217.79.214.245🇩🇪 Equinix217.79.208.0/20 Frankfurt | ||||||
| NS | dns2.regsystem.net | ||||||
| A | 2a02:20a8:a000:4::53🇩🇪 Equinix2a02:20a8::/32 Frankfurt | ||||||
| PTR | thor.dnsnodes.eu | ||||||
| A | 217.79.214.253🇩🇪 Equinix217.79.208.0/20 Frankfurt | ||||||
| NS | dns3.regsystem.net | ||||||
| A | 2a02:4c00:0:8000::2🇩🇪 NCORE-AS2a02:4c00::/40 HKN GmbH Am Rheintor 7 D-47829 Krefeld Germany | ||||||
| PTR | odin.dnsnodes.eu | ||||||
| A | 2a02:4c00:0:8000::5🇩🇪 NCORE-AS2a02:4c00::/40 HKN GmbH Am Rheintor 7 D-47829 Krefeld Germany | ||||||
| PTR | odin.dnsnodes.eu | ||||||
| A | 213.9.14.107🇩🇪 NCORE-AS213.9.0.0/17 HKN GmbH Hochstadenstr. 5 D-47829 Krefeld Germany | ||||||
| A | 213.9.44.85🇩🇪 NCORE-AS213.9.0.0/17 HKN GmbH Hochstadenstr. 5 D-47829 Krefeld Germany | ||||||
| MX | mx.ctsys.de ⭐ | ||||||
| A | 95.216.89.100🇫🇮 Hetzner95.216.0.0/16 HETZNER-DC | ||||||
| PTR | websrv.ctsys.de | ||||||
| SOA | dns1.regsystem.nethostmaster@regsystem.net 2024-03-12 #3 | ||||||
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | f.nic.de ⭐ | ||||||
| NS | a.nic.de | ||||||
| NS | l.de.net ⚠️ Not in parent delegation | ||||||
| NS | n.de.net ⚠️ Not in parent delegation | ||||||
| NS | s.de.net ⚠️ Not in parent delegation | ||||||
| NS | z.nic.de | ||||||
| SOA | f.nic.dedns-operations@denic.de serial=1782843079 | ||||||
MX for
Subdomains
makeitcraftable.ctsys.de |
mail.ctsys.de |
mx.ctsys.de |
websrv.ctsys.de |
Same first word
ctsys.co.uk |
ctsys.de |
ctsys.com |
ctsys.azurewebsites.net |
ctsys.com.br |
ctsys.ro |
ctsys.com.ar |
ctsys.ru |
ctsys.net |
Similar names
DNS History
5 records (5 active, 0 former)
●NSdns1.regsystem.net2018-09-05 → 2026-06-30 · 2 obs
● 2026-06-30 18:42:46
●NSdns2.regsystem.net2018-09-05 → 2026-06-30 · 2 obs
● 2026-06-30 18:42:46
●NSdns3.regsystem.net2018-09-05 → 2026-06-30 · 2 obs
● 2026-06-30 18:42:46
●MXmx.ctsys.de2018-09-05 → 2026-06-30 · 2 obs
● 2026-06-30 18:42:46
●A95.216.89.1002018-09-05 → 2026-06-30 · 2 obs
● 2026-06-30 18:42:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, l.de.net, n.de.net... | 12 records |
| ctsys.de | dns3.regsystem.net, dns2.regsystem.net, dns1.regsystem.net | - |
✅ Authoritative Response
Server:217.79.214.245
NS records: dns3.regsystem.net, dns2.regsystem.net, dns1.regsystem.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctsys.de (unsigned zone)
⏱️ Timing
Total: 2031ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 95.216.89.100 |
| NS | 3 | dns1.regsystem.net, dns2.regsystem.net... |
| MX | 1 | mx.ctsys.de (pri: 10) |
| SOA | 1 | dns1.regsystem.net hostmaster.regsystem. |
📌 Glue Records Collected
Total: 12
In-bailiwick: 6 (a.nic.de, f.nic.de, z.nic.de...)
Out-of-bailiwick: 6 (l.de.net, n.de.net, s.de.net...)
Analysis
Hierarchy
makeitcraftable.ctsys.de, mail.ctsys.de, mx.ctsys.de and websrv.ctsys.de each fall under the parent domain ctsys.de.
Mail Server Role
Mail for dj-orca.de is routed through the mail server ctsys.de.
IP Addresses
ctsys.de has exactly one IP address — 95.216.89.100.
mail.welfenbrigade.de, welfenbrigade.de, christian-linde.de plus two other host names have IP numbers in common with ctsys.de.
Name Servers
ctsys.de is delegated to three name servers: dns1.regsystem.net, dns2.regsystem.net and dns3.regsystem.net.
ctsys.de partially shares its NS delegation with several other domains, including cinecard-darmstadt.de, mvl-vertrieb.de, cl-development.de and two others.
Host names with four IP addresses:
dns3.regsystem.net maps to the following IP addresses: 213.9.14.107, 213.9.44.85, 2a02:4c00:0:8000::2 and 2a02:4c00:0:8000::5.
Host names pointing to two IP addresses:
dns1.regsystem.net points to 217.79.214.245 and 2a02:20a8:a000:4::2.
dns2.regsystem.net points to 217.79.214.253 and 2a02:20a8:a000:4::53.
Mail Servers
ctsys.de uses one mail server — mx.ctsys.de.
mx.ctsys.de resolves to a single IP number: 95.216.89.100.