techschool.de - dns.ninja
techschool.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 213.239.198.139🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | srv733305.dogado-shops.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 | ||||||
| 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 | ||||||
| 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 | ||||||
| MX | mail.techschool.de ⭐ | ||||||
| A | 213.239.198.139🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | srv733305.dogado-shops.de | ||||||
| SOA | ns1.first-ns.dedns@hetzner.com 2026-04-14 #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=1782289118 | ||||||
Subdomains
mail.techschool.de |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSns1.first-ns.de2015-07-14 → 2026-06-24 · 2 obs
● 2026-06-24 08:37:10
●NSrobotns2.second-ns.de2015-07-14 → 2026-06-24 · 2 obs
● 2026-06-24 08:37:10
●NSrobotns3.second-ns.com2015-07-14 → 2026-06-24 · 2 obs
● 2026-06-24 08:37:10
●MXmail.techschool.de2015-07-14 → 2026-06-24 · 2 obs
● 2026-06-24 08:37:10
●A213.239.198.1392015-07-14 → 2026-06-24 · 2 obs
● 2026-06-24 08:37:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | z.nic.de, a.nic.de, f.nic.de | - |
| techschool.de | ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com | - |
✅ Authoritative Response
Server:213.239.242.238
NS records: ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for techschool.de (unsigned zone)
⏱️ Timing
Total: 1256ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 213.239.198.139 |
| NS | 3 | ns1.first-ns.de, robotns2.second-ns.de... |
| MX | 1 | mail.techschool.de (pri: 10) |
| SOA | 1 | ns1.first-ns.de dns.hetzner.com |
Analysis
Hierarchy
techschool.de is a parent domain of mail.techschool.de.
IP Addresses
techschool.de resolves to just one IP address, 213.239.198.139.
Two other host names, along with mail.knippatronen.be, c-de.org and mail.remeet.de, also share IP numbers with techschool.de.
Name Servers
Three name servers are authoritative for techschool.de: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
techschool.de shares at least some of its name servers with other domains, including schlaubibasti.de, videopersonalisierung.de, evafeldkamp.de and two others.
These name servers are frequently seen alongside the name servers hydrogen.ns.hetzner.com.
robotns3.second-ns.com resolves to 193.47.99.3 and 2001:67c:192c::add:a3. ns1.first-ns.de resolves to 213.239.242.238 and 2a01:4f8:0:a101::a:1. robotns2.second-ns.de resolves to 213.133.100.103 and 2a01:4f8:0:1::5ddc:2. All three hostnames point to two IP numbers each.
Mail Servers
The sole mail server for techschool.de is mail.techschool.de.
There is one IP number for mail.techschool.de: 213.239.198.139.