systemadmin.cz - dns.ninja
systemadmin.cz
cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.ns.nic.cz ⭐ | ||||||
| NS | b.ns.nic.cz | ||||||
| NS | c.ns.nic.cz | ||||||
| NS | d.ns.nic.cz | ||||||
| SOA | a.ns.nic.czhostmaster@nic.cz serial=1785566844 | ||||||
Subdomains
Same first word
Similar names
myinstameds.com |
adminsystem.de |
adminsystem.com |
adminsystem.org |
adminsystem.dk |
adminsystem.co.za |
adminsystem.eu |
DNS History
10 records (6 active, 4 former)
○NSalfa.ns.active24.cz2018-08-03 → 2018-08-03 · 3 obs
○ 2026-06-10 18:38:04
○ 2026-08-01 07:05:40
○NSbeta.ns.active24.cz2018-08-03 → 2018-08-03 · 3 obs
○ 2026-06-10 18:38:04
○ 2026-08-01 07:05:40
○NSgama.ns.active24.sk2018-08-03 → 2018-08-03 · 3 obs
○ 2026-06-10 18:38:04
○ 2026-08-01 07:05:40
●NSns.wedos.com2026-06-10 → 2026-08-01 · 3 obs
● 2026-06-10 18:38:04
● 2026-08-01 07:05:40
●NSns.wedos.cz2026-06-10 → 2026-08-01 · 3 obs
● 2026-06-10 18:38:04
● 2026-08-01 07:05:40
●NSns.wedos.eu2026-06-10 → 2026-08-01 · 3 obs
● 2026-06-10 18:38:04
● 2026-08-01 07:05:40
●NSns.wedos.net2026-06-10 → 2026-08-01 · 3 obs
● 2026-06-10 18:38:04
● 2026-08-01 07:05:40
●MXmail.systemadmin.cz2018-08-03 → 2026-08-01 · 2 obs
● 2026-08-01 07:05:40
●A212.158.143.1222026-06-10 → 2026-08-01 · 3 obs
● 2026-06-10 18:38:04
● 2026-08-01 07:05:40
○A212.158.143.1242018-08-03 → 2018-08-03 · 3 obs
○ 2026-06-10 18:38:04
○ 2026-08-01 07:05:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | d.ns.nic.cz, c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz | - |
| systemadmin.cz | ns.wedos.cz, ns.wedos.com, ns.wedos.eu, ns.wedos.net | 4 records |
✅ Authoritative Response
Server:45.138.106.1
NS records: ns.wedos.cz, ns.wedos.com, ns.wedos.eu, ns.wedos.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 541ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 212.158.143.122 |
| NS | 4 | ns.wedos.net, ns.wedos.cz... |
| MX | 1 | mail.systemadmin.cz (pri: 10) |
| TXT | 3 | google-site-verification=syU1ivFDEEtjTt6, abuseipdb-verification=NJAH1brN... |
| SOA | 1 | ns.wedos.net wedos.wedos.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns.wedos.cz, ns.wedos.cz, ns.wedos.cz...)
Analysis
Hierarchy
systemadmin.cz serves as the parent of mail.systemadmin.cz and www.systemadmin.cz.
IP Addresses
systemadmin.cz has exactly one IP address — 212.158.143.122.
There are other host names — mail.systemadmin.cz among them — that share IP numbers with systemadmin.cz.
Name Servers
Four name servers handle the delegation for systemadmin.cz: ns.wedos.com, ns.wedos.cz, ns.wedos.eu and ns.wedos.net.
systemadmin.cz has at least partial name server overlap with other domains, such as jzs.cz, satya.cz, vilaolga.cz and two others.
Host names with four IP addresses:
ns.wedos.cz has four IP addresses: 45.138.106.1, 185.8.238.1, 2a0e:acc0:1::caff:caff:cafb and 2a0e:acc0:2::c:1:c1.
ns.wedos.net has four IP addresses: 75.2.92.86, 99.83.142.9, 2600:9000:a419:5a54:19f7:a614:36fd:2825 and 2600:9000:a705:25bb:c632:5e5a:dd9c:1e46.
Host names pointing to two IP addresses:
ns.wedos.com has two IP addresses: 45.138.106.0 and 2a0e:acc0:1::cafe:cafe:cafe.
ns.wedos.eu has two IP addresses: 185.8.238.0 and 2a0e:acc0:2::b:1:b1.
Mail Servers
systemadmin.cz uses one mail server — mail.systemadmin.cz.
systemadmin.cz uses the same mail servers as other domains, including vsehodruhu.cz.
mail.systemadmin.cz has exactly one IP number: 212.158.143.122.