sys4.ch - dns.ninja
sys4.ch
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 194.126.158.244🇩🇪 RAY-AS194.126.158.0/23 EDV-Service Florian Kirstein - Ray.Net Munich, Germany | ||||||
| NS | dnsh01.sys4.de ⭐ | ||||||
| A | 2001:1578:400:111:5054:ff:fe44:bd6e🇩🇪 RAY-AS2001:1578:400::/40 | ||||||
| A | 194.126.158.141🇩🇪 RAY-AS194.126.158.0/23 EDV-Service Florian Kirstein - Ray.Net Munich, Germany | ||||||
| NS | ns01.sys4.ch | ||||||
| A | 2a0a:4cc0:c0:7516:c48d:4aff:fe6d:3ad1🇦🇹 netcup-AS2a0a:4cc0:c0::/43 | ||||||
| PTR | ns01.sys4.de | ||||||
| A | 152.53.227.32🇦🇹 netcup-AS152.53.224.0/22 | ||||||
| PTR | ns01.sys4.de | ||||||
| NS | ns01.sys4.de | ||||||
| A | 2a0a:4cc0:c0:7516:c48d:4aff:fe6d:3ad1🇦🇹 netcup-AS2a0a:4cc0:c0::/43 | ||||||
| PTR | ns01.sys4.de | ||||||
| A | 152.53.227.32🇦🇹 netcup-AS152.53.224.0/22 | ||||||
| PTR | ns01.sys4.de | ||||||
| NS | ns01.sys4.farm | ||||||
| A | 2a01:4f8:c010:809d::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| A | 168.119.61.53🇩🇪 Hetzner168.119.0.0/16 HETZNER-DC | ||||||
| PTR | static.53.61.119.168.clients.your-server.de | ||||||
| TXT | v=spf1 ~all | ||||||
| SOA | dnsh01.sys4.dehostmaster@sys4.de serial=3000000041 | ||||||
ch
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.ch ⭐ | ||||||
| NS | b.nic.ch | ||||||
| NS | d.nic.ch | ||||||
| NS | e.nic.ch | ||||||
| NS | f.nic.ch | ||||||
| SOA | a.nic.chdns-operation@switch.ch 2026-07-22 #23 | ||||||
Subdomains
Same first word
Similar names
4sys.at |
yss4.com |
4ssy.com |
4sys.com.br |
4sys.org |
4sys.net |
4sys.nl |
4sys.eu |
s4ys.com |
4sys.biz |
ssy4.com |
ss4y.com |
4sys.ru |
4sys.de |
sy4s.com |
4sys.fr |
4yss.com |
4ssy.net |
s4ys.de |
DNS History
7 records (5 active, 2 former)
●NSdnsh01.sys4.de2026-06-21 → 2026-07-22 · 3 obs
● 2026-06-21 00:13:40
● 2026-07-22 10:36:56
○NSns.schiffbauer.net2026-02-21 → 2026-06-07 · 4 obs
● 2026-06-07 15:19:06
○ 2026-06-21 00:13:40
○ 2026-07-22 10:36:56
○NSns.sys4.de2026-02-21 → 2026-06-07 · 4 obs
● 2026-06-07 15:19:06
○ 2026-06-21 00:13:40
○ 2026-07-22 10:36:56
●NSns01.sys4.ch2026-07-21 → 2026-07-22 · 3 obs
● 2026-07-21 13:50:02
● 2026-07-22 10:36:56
●NSns01.sys4.de2026-06-21 → 2026-07-22 · 3 obs
● 2026-06-21 00:13:40
● 2026-07-22 10:36:56
●NSns01.sys4.farm2026-06-21 → 2026-07-22 · 3 obs
● 2026-06-21 00:13:40
● 2026-07-22 10:36:56
●A194.126.158.2442026-02-21 → 2026-07-22 · 2 obs
● 2026-07-22 10:36:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, e.nic.ch, d.nic.ch, b.nic.ch... | - |
| sys4.ch | ns01.sys4.ch, ns01.sys4.farm, ns01.sys4.de | 2 records |
✅ Authoritative Response
Server:152.53.227.32
NS records: ns01.sys4.ch, ns01.sys4.farm, ns01.sys4.de
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1208ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 194.126.158.244 |
| NS | 3 | ns01.sys4.de, ns01.sys4.farm... |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 ~all |
| SOA | 1 | dnsh01.sys4.de hostmaster.sys4.de |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns01.sys4.ch, ns01.sys4.ch)
Analysis
Hierarchy
sys4.ch sits above nsx04.sys4.ch, ns01.sys4.ch and nsx03.sys4.ch in the domain hierarchy.
IP Addresses
sys4.ch resolves to just one IP address, 194.126.158.244.
Further host names like sys4.eu and www.sys4.eu overlap in IP numbers with sys4.ch.
Name Servers
The NS records for sys4.ch point to four name servers: ns01.sys4.ch, dnsh01.sys4.de, ns01.sys4.de and ns01.sys4.farm.
There is at least partial name server overlap between sys4.ch and other domains — sys4.email, postfix-book.com, sys4.eu and two more among them.
These name servers tend to appear in combination with the name servers ns.schiffbauer.net, ns.sys4.de, ns4.tidelock.de and ns5.tidelock.de.
ns01.sys4.ch has IP addresses 152.53.227.32 and 2a0a:4cc0:c0:7516:c48d:4aff:fe6d:3ad1. dnsh01.sys4.de has IP addresses 194.126.158.141 and 2001:1578:400:111:5054:ff:fe44:bd6e. ns01.sys4.de has IP addresses 152.53.227.32 and 2a0a:4cc0:c0:7516:c48d:4aff:fe6d:3ad1. ns01.sys4.farm has IP addresses 168.119.61.53 and 2a01:4f8:c010:809d::1. All four hosts (ns01.sys4.ch, dnsh01.sys4.de, ns01.sys4.de and ns01.sys4.farm) each carry exactly two IP addresses.
Both ns01.sys4.ch and ns01.sys4.de resolve to 2a0a:4cc0:c0:7516:c48d:4aff:fe6d:3ad1 IP addresses each.
Both ns01.sys4.ch and ns01.sys4.de resolve to 152.53.227.32 IP addresses each.