ad.computersystem.cz - robtex.com
ad.computersystem.cz
computersystem.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 81.2.195.125🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| NS | ns.forpsi.net ⭐ | ||||||
| NS | ns.forpsi.cz | ||||||
| NS | ns.forpsi.it | ||||||
| MX | computersystem-cz.mail.protection.outlook.com ⭐ | ||||||
| TXT | v=spf1 include:_spf.forpsi.com include:spf.protection.outlook.com mx a:gw.com... | ||||||
| SOA | ns.forpsi.netadmin@forpsi.com 2026-04-09 #1 | ||||||
Subdomains
pdc.ad.computersystem.cz |
iis.ad.computersystem.cz |
csgqnap01.ad.computersystem.cz |
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSiis.ad.computersystem.cz2026-02-15 → 2026-04-23 · 2 obs
● 2026-04-23 21:37:12
●NSpdc.ad.computersystem.cz2026-02-15 → 2026-04-23 · 2 obs
● 2026-04-23 21:37:12
●NSsns.newlink.cz2026-02-15 → 2026-04-23 · 2 obs
● 2026-04-23 21:37:12
●MXad-computersystem-cz.mail.protection.outlook.com2026-02-15 → 2026-04-23 · 2 obs
● 2026-04-23 21:37:12
●A2a01:6400:ff0f:1::2102026-02-15 → 2026-04-23 · 2 obs
● 2026-04-23 21:37:12
●A77.78.81.2102026-02-15 → 2026-04-23 · 2 obs
● 2026-04-23 21:37:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, d.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz | - |
| computersystem.cz | ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net | 2 records |
| ad.computersystem.cz | iis.ad.computersystem.cz, pdc.ad.computersystem.cz, sns.newlink.cz | 4 records |
✅ Authoritative Response
Server:77.78.81.210
NS records: iis.ad.computersystem.cz, pdc.ad.computersystem.cz, sns.newlink.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ad.computersystem.cz (unsigned zone)
⏱️ Timing
Total: 1340ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 77.78.81.210 |
| AAAA | 1 | 2a01:6400:ff0f:1::210 |
| NS | 3 | iis.ad.computersystem.cz, pdc.ad.computersystem.cz... |
| MX | 1 | ad-computersystem-cz.mail.protection.out |
| TXT | 1 | v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | pdc.ad.computersystem.cz hostmaster.ad.c |
📌 Glue Records Collected
Total: 6
In-bailiwick: 4 (iis.ad.computersystem.cz, iis.ad.computersystem.cz, pdc.ad.computersystem.cz...)
Out-of-bailiwick: 2 (ns.forpsi.cz, ns.forpsi.cz)
Analysis
Hierarchy
ad.computersystem.cz is a parent of pdc.ad.computersystem.cz, iis.ad.computersystem.cz and csgqnap01.ad.computersystem.cz.
IP Addresses
ad.computersystem.cz points to two IP numbers: 2a01:6400:ff0f:1::210 and 77.78.81.210.
Other host names, for instance pdc.ad.computersystem.cz, share IP numbers with ad.computersystem.cz.
Name Servers
ad.computersystem.cz is delegated to three name servers: sns.newlink.cz, iis.ad.computersystem.cz and pdc.ad.computersystem.cz.
At least part of the name servers for ad.computersystem.cz are shared with other domains, for instance newlink.cz, newlink.be, newlink.eu, huybrechts.be and internubel.be.
These name servers are often used together with ns.newlink.cz, sentinel.newlink.cz and nebula.newlink.cz.
Host names with two IP numbers:
sns.newlink.cz points to 2a02:5b40:4:210::3 and 193.104.8.17
iis.ad.computersystem.cz points to 2a01:6400:ff0f:1::211 and 77.78.81.211
pdc.ad.computersystem.cz points to 2a01:6400:ff0f:1::210 and 77.78.81.210
Mail Servers
The mail server for ad.computersystem.cz is ad-computersystem-cz.mail.protection.outlook.com.
ad-computersystem-cz.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::6, 2a01:111:f403:ca04::9, 2a01:111:f403:ca04::b, 2a01:111:f403:ca09::d, 52.101.68.3, 52.101.68.8, 52.101.73.8 and 52.101.73.24.