developer-training.de - robtex.com
developer-training.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 148.251.193.237🇩🇪 Hetzner148.251.0.0/16 HETZNER-RZ-BLK-ERX2 | ||||||
| PTR | ppedv.de | ||||||
| NS | hydrogen.ns.hetzner.com ⭐ | ||||||
| A | 2a01:4f8:0:1::add:1098🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| A | 213.133.100.98🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| NS | helium.ns.hetzner.de | ||||||
| A | 2001:67c:192c::add:5🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| A | 193.47.99.5🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| NS | oxygen.ns.hetzner.com | ||||||
| A | 2a01:4f8:0:1::add:2992🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| A | 88.198.229.192🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4 | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| SOA | hydrogen.ns.hetzner.comdns@hetzner.com 2026-04-21 #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=1790769080 | ||||||
Same first word
developer-training.de |
Previous names
Next names
DNS History
6 records (4 active, 2 former)
●NShelium.ns.hetzner.de2026-09-14 → 2026-09-30 · 3 obs
● 2026-09-14 01:44:52
● 2026-09-30 12:13:38
●NShydrogen.ns.hetzner.com2026-09-14 → 2026-09-30 · 3 obs
● 2026-09-14 01:44:52
● 2026-09-30 12:13:38
○NSns2.tmag.de2015-08-15 → 2017-05-17 · 4 obs
● 2017-05-17 14:30:52
○ 2026-09-14 01:44:52
○ 2026-09-30 12:13:38
○NSnserver.tmag.de2015-08-15 → 2017-05-17 · 4 obs
● 2017-05-17 14:30:52
○ 2026-09-14 01:44:52
○ 2026-09-30 12:13:38
●NSoxygen.ns.hetzner.com2026-09-14 → 2026-09-30 · 3 obs
● 2026-09-14 01:44:52
● 2026-09-30 12:13:38
●A148.251.193.2372026-09-14 → 2026-09-30 · 2 obs
● 2026-09-30 12:13:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| developer-training.de | helium.ns.hetzner.de, oxygen.ns.hetzner.com, hydrogen.ns.hetzner.com | - |
✅ Authoritative Response
Server:193.47.99.5
NS records: helium.ns.hetzner.de, oxygen.ns.hetzner.com, hydrogen.ns.hetzner.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for developer-training.de (unsigned zone)
⏱️ Timing
Total: 1247ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 148.251.193.237 |
| NS | 3 | oxygen.ns.hetzner.com, helium.ns.hetzner.de... |
| SOA | 1 | hydrogen.ns.hetzner.com dns.hetzner.com |
Analysis
IP Addresses
developer-training.de points to a single IP number: 148.251.193.237.
Additional host names — *.ppedv.de, visualstudio1.de, www.ppedv.de and two others — share IP numbers with developer-training.de.
Name Servers
Three name servers are authoritative for developer-training.de: hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
At least some of developer-training.de's name servers are shared with other domains, for example mv-network.eu, kognitionskonfetti.de, 8n4.de and two more.
These name servers tend to be used in conjunction with the name servers ns1.your-server.de.
hydrogen.ns.hetzner.com resolves to 213.133.100.98 and 2a01:4f8:0:1::add:1098. oxygen.ns.hetzner.com resolves to 88.198.229.192 and 2a01:4f8:0:1::add:2992. helium.ns.hetzner.de resolves to 193.47.99.5 and 2001:67c:192c::add:5. All three hostnames point to two IP numbers each.