simoptclient.cz - robtex.com
simoptclient.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 194.145.180.34🇨🇿 MASTER-AS194.145.180.0/22 CZ-MASTER-2014051902 | ||||||
| PTR | d4675.masterinter.net | ||||||
| NS | ns1.websupport.cz ⭐ 🔒 | ||||||
| A | 2a10:bbc0::11🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns1.websupport.eu | ||||||
| A | 45.10.97.11🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| PTR | ns1.websupport.eu | ||||||
| NS | ns2.websupport.cz 🔒 | ||||||
| A | 2a02:250:3::12🇸🇪 ACTIVE24-AS2a02:250:3::/48 | ||||||
| PTR | ns2.websupport.eu | ||||||
| A | 185.71.159.12🇸🇪 ACTIVE24-AS185.71.159.0/24 | ||||||
| PTR | ns2.websupport.eu | ||||||
| NS | ns3.websupport.eu 🔒 | ||||||
| A | 2a10:bbc0::13🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns3.websupport.eu | ||||||
| A | 45.10.97.13🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| PTR | ns3.websupport.eu | ||||||
| MX | simoptclient.cz ⭐ 🔒 | ||||||
| A | 194.145.180.34🇨🇿 MASTER-AS194.145.180.0/22 CZ-MASTER-2014051902 | ||||||
| PTR | d4675.masterinter.net | ||||||
| TXT | v=spf1 mx a ~all | ||||||
| SOA | ns1.websupport.czadmin@websupport.cz serial=1765653448 | ||||||
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=1771291036 | ||||||
Similar names
DNS History
8 records (5 active, 3 former)
○NSalfa.ns.active24.cz2018-08-14 → 2018-08-14 · 3 obs
○ 2026-03-07 22:31:56
○ 2026-03-07 22:31:58
○NSbeta.ns.active24.cz2018-08-14 → 2018-08-14 · 3 obs
○ 2026-03-07 22:31:56
○ 2026-03-07 22:31:58
○NSgama.ns.active24.sk2018-08-14 → 2018-08-14 · 3 obs
○ 2026-03-07 22:31:56
○ 2026-03-07 22:31:58
●NSns1.websupport.cz2026-03-07 → 2026-03-07 · 3 obs
● 2026-03-07 22:31:56
● 2026-03-07 22:31:58
●NSns2.websupport.cz2026-03-07 → 2026-03-07 · 3 obs
● 2026-03-07 22:31:56
● 2026-03-07 22:31:58
●NSns3.websupport.eu2026-03-07 → 2026-03-07 · 3 obs
● 2026-03-07 22:31:56
● 2026-03-07 22:31:58
●MXsimoptclient.cz2026-03-07 → 2026-03-07 · 2 obs
● 2026-03-07 22:31:58
●A194.145.180.342018-08-14 → 2026-03-07 · 2 obs
● 2026-03-07 22:31:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| simoptclient.cz | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server: 45.10.97.11
NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1136ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 194.145.180.34 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 1 | simoptclient.cz (pri: 10) |
| TXT | 1 | v=spf1 mx a ~all |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
Analysis
IP Addresses
simoptclient.cz points to a single IP address: 194.145.180.34.
Other host names such as dsadvokati.cz, ecolamp.cz, d4675.masterinter.net, vimproc.cz and tapa.cz share IP numbers with simoptclient.cz.
Name Servers
simoptclient.cz is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
At least part of the name servers for simoptclient.cz are shared with other domains, for instance jobmatch.cz, kurban.cz, ktech.cz, tenzo.sk and lgp.cz.
These name servers are commonly used alongside ns1.websupport.sk and ns2.websupport.sk.
Host names with two IP numbers:
ns1.websupport.cz points to 2a10:bbc0::11 and 45.10.97.11
ns2.websupport.cz points to 2a02:250:3::12 and 185.71.159.12
ns3.websupport.eu points to 2a10:bbc0::13 and 45.10.97.13
Mail Servers
Mail for simoptclient.cz is handled by a single mail server, simoptclient.cz.
Host simoptclient.cz points to IP 194.145.180.34.