4system.de - robtex.com
4system.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 213.239.227.89🇩🇪 Hetzner | ||||||
| PTR | sigma.4system.de | ||||||
| NS | hydrogen.ns.hetzner.com ⭐ | ||||||
| A | 2a01:4f8:0:1::add:1098🇩🇪 Hetzner | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| A | 213.133.100.98🇩🇪 Hetzner | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| NS | helium.ns.hetzner.de | ||||||
| A | 2001:67c:192c::add:5🇩🇪 NORIS-NETWORK | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| A | 193.47.99.5🇩🇪 NORIS-NETWORK | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| NS | oxygen.ns.hetzner.com | ||||||
| A | 2a01:4f8:0:1::add:2992🇩🇪 Hetzner | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| A | 88.198.229.192🇩🇪 Hetzner | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| MX | mail.4system.de ⭐ | ||||||
| A | 213.239.227.89🇩🇪 Hetzner | ||||||
| PTR | sigma.4system.de | ||||||
| TXT | v=spf1 ip4:88.198.7.248 ip4:213.239.227.89 ip6:2a01:4f8:222:284e::2 a:alpha.4... | ||||||
| SOA | hydrogen.ns.hetzner.comdns@hetzner.com 2026-02-09 #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 | ||||||
Up
eta.4system.de |
ax41.4system.de |
alpha.4system.de |
euve.4system.de |
beta.4system.de |
omega1.4system.de |
eva.4system.de |
epsilon.4system.de |
www.4system.de |
omega.4system.de |
mail.4system.de |
sigma.4system.de |
Same first word
Similar names
system4.net |
system4.nl |
system4.ca |
system4.ua |
system4.com.ua |
system4.es |
system4.co |
system4.info |
system4.me |
system4.ch |
system4.be |
system4.biz |
system4.org |
system4.eu |
system4.de |
system4.com |
system4.com.br |
DNS History
11 records (5 active, 6 former)
○NSa1.rsns.hosteurope.de2015-08-05 → 2020-03-11 · 3 obs
● 2020-03-11 10:49:56
○ 2026-02-23 17:51:04
○NSc1.rpns.hosteurope.de2015-08-05 → 2020-03-11 · 3 obs
● 2020-03-11 10:49:56
○ 2026-02-23 17:51:04
●NShelium.ns.hetzner.de2026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 17:51:04
●NShydrogen.ns.hetzner.com2026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 17:51:04
●NSoxygen.ns.hetzner.com2026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 17:51:04
○MX4system-de.mail.protection.outlook.com2015-08-05 → 2020-03-11 · 3 obs
● 2020-03-11 10:49:56
○ 2026-02-23 17:51:04
●MXmail.4system.de2026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 17:51:04
○A188.138.4.12015-08-05 → 2015-11-21 · 4 obs
● 2015-11-21 19:33:46
○ 2016-01-21 23:32:02
○ 2026-02-23 17:51:04
●A213.239.227.892026-02-23 → 2026-02-23 · 2 obs
● 2026-02-23 17:51:04
○A85.25.45.2482016-01-21 → 2016-07-15 · 5 obs
● 2016-01-21 23:32:02
● 2016-07-15 21:47:38
○ 2017-03-27 11:35:14
○ 2026-02-23 17:51:04
○A88.99.88.1952017-03-27 → 2020-03-11 · 4 obs
● 2017-03-27 11:35:14
● 2020-03-11 10:49:56
○ 2026-02-23 17:51:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| 4system.de | hydrogen.ns.hetzner.com, helium.ns.hetzner.de, oxygen.ns.hetzner.com | - |
✅ Authoritative Response
Server: 193.47.99.5
NS records: hydrogen.ns.hetzner.com, helium.ns.hetzner.de, oxygen.ns.hetzner.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 4system.de (unsigned zone)
⏱️ Timing
Total: 316ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 213.239.227.89 |
| NS | 3 | oxygen.ns.hetzner.com, hydrogen.ns.hetzner.com... |
| MX | 1 | mail.4system.de (pri: 10) |
| TXT | 1 | v=spf1 ip4:88.198.7.248 ip4:213.239.227. |
| SOA | 1 | hydrogen.ns.hetzner.com dns.hetzner.com |
AI analysis
4system.de is a parent of eta.4system.de, ax41.4system.de, alpha.4system.de, euve.4system.de and beta.4system.de, plus a few other host names.
4system.de points to a single IP number: 213.239.227.89.
Other host names, for instance anti-mainstream.de, mail.jadax.net, okatec.de, hausbibelkreis.de and cx-liebe.de share IP numbers with 4system.de.
The domain 4system.de is delegated to three name servers: hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
4system.de shares name servers with other domains at least partially, for instance virusclan.de, ovt.fi, pari-passu.de, failnet.de and cargo-projects.com.
these name servers are often used together with the name servers ns1.first-ns.de.
Host names with two IP numbers:
hydrogen.ns.hetzner.com points to 2a01:4f8:0:1::add:1098 and 213.133.100.98
oxygen.ns.hetzner.com points to 2a01:4f8:0:1::add:2992 and 88.198.229.192
helium.ns.hetzner.de points to 2001:67c:192c::add:5 and 193.47.99.5
The mail server for 4system.de is mail.4system.de.
Host name mail.4system.de resolves to IP 213.239.227.89.