cbvalidate.de - robtex.com
cbvalidate.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 5.9.192.152🇩🇪 Hetzner5.9.0.0/16 HETZNER-RZ-FKS-BLK5 | ||||||
| PTR | cobikeys.mattiasschlenker.de | ||||||
| NS | ns1.first-ns.de ⭐ | ||||||
| A | 2a01:4f8:0:a101::a:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns1.first-ns.de | ||||||
| A | 213.239.242.238🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | ns1.first-ns.de | ||||||
| NS | robotns2.second-ns.de | ||||||
| A | 2a01:4f8:0:1::5ddc:2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | robotns2.second-ns.de | ||||||
| A | 213.133.100.103🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | robotns2.second-ns.de | ||||||
| NS | robotns3.second-ns.com | ||||||
| A | 2001:67c:192c::add:a3🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| A | 193.47.99.3🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| MX | mail.schlenker.dk ⭐ | ||||||
| A | 5.9.192.132🇩🇪 Hetzner5.9.0.0/16 HETZNER-RZ-FKS-BLK5 | ||||||
| PTR | mail.schlenker.dk | ||||||
| TXT | v=spf1 mx mx:mail.schlenker.dk mx:mail.mattiasschlenker.de -all | ||||||
| SOA | ns1.first-ns.dedns@hetzner.com 2026-01-01 #0 | ||||||
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=1771291602 | ||||||
DNS History
5 records (5 active, 0 former)
●NSns1.first-ns.de2026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 13:55:18
●NSrobotns2.second-ns.de2026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 13:55:18
●NSrobotns3.second-ns.com2026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 13:55:18
●MXmail.schlenker.dk2026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 13:55:18
●A5.9.192.1522026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 13:55:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| cbvalidate.de | robotns2.second-ns.de, robotns3.second-ns.com, ns1.first-ns.de | - |
✅ Authoritative Response
Server: 213.239.242.238
NS records: robotns2.second-ns.de, robotns3.second-ns.com, ns1.first-ns.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cbvalidate.de (unsigned zone)
⏱️ Timing
Total: 1012ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 5.9.192.152 |
| NS | 3 | robotns3.second-ns.com, ns1.first-ns.de... |
| MX | 1 | mail.schlenker.dk (pri: 10) |
| TXT | 1 | v=spf1 mx mx:mail.schlenker.dk mx:mail.m |
| SOA | 1 | ns1.first-ns.de dns.hetzner.com |
Analysis
IP Addresses
cbvalidate.de resolves to a single IP: 5.9.192.152.
Other host names, for instance cobikeys.mattiasschlenker.de, hostmaster.cbapps.de, cbapps.de, cbsapp.de and www.cbapps.de share IP numbers with cbvalidate.de.
Name Servers
cbvalidate.de delegates to three name servers: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
cbvalidate.de shares some name servers with other domains, for example metra-net.de, fewovonprivat.de, camping-lippstadt.de, stevenfranke.de and alohr.de.
These name servers are often used together with hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
Host names with two IP numbers:
robotns3.second-ns.com: 2001:67c:192c::add:a3 and 193.47.99.3
ns1.first-ns.de: 2a01:4f8:0:a101::a:1 and 213.239.242.238
robotns2.second-ns.de: 2a01:4f8:0:1::5ddc:2 and 213.133.100.103
Mail Servers
cbvalidate.de is handled by a single mail server, mail.schlenker.dk.
cbvalidate.de shares the mail server setup with other domains, for example schlenker.dk, stephanschlenker.de, getriebereparatur.de, arduino-hausautomation.de and cycle-sport.de.
Host name mail.schlenker.dk points to IP 5.9.192.132.