cesky-software.cz - robtex.com
cesky-software.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=1777596435 | ||||||
Same first word
cesky-software.cz |
DNS History
7 records (6 active, 1 former)
●NSns1.regzone.cz2015-08-04 → 2026-05-01 · 2 obs
● 2026-05-01 01:03:24
●NSns1.regzone.de2015-08-04 → 2026-05-01 · 2 obs
● 2026-05-01 01:03:24
●NSns1.regzone.info2015-08-04 → 2026-05-01 · 2 obs
● 2026-05-01 01:03:24
●MX17987b46371dd0af.mx1.emailprofi.seznam.cz2026-04-08 → 2026-05-01 · 2 obs
● 2026-05-01 01:03:24
●MX17987b46371dd0af.mx2.emailprofi.seznam.cz2026-04-08 → 2026-05-01 · 2 obs
● 2026-05-01 01:03:24
○A217.198.116.442015-08-04 → 2017-04-20 · 4 obs
● 2017-04-20 10:54:00
○ 2026-04-08 04:14:18
○ 2026-05-01 01:03:24
●A217.198.121.202026-04-08 → 2026-05-01 · 3 obs
● 2026-04-08 04:14:18
● 2026-05-01 01:03:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | c.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz | - |
| cesky-software.cz | ns1.regzone.cz, ns1.regzone.de, ns1.regzone.info | 2 records |
✅ Authoritative Response
Server:217.198.113.10
NS records: ns1.regzone.cz, ns1.regzone.de, ns1.regzone.info
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 754ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.198.121.20 |
| NS | 3 | ns1.regzone.cz, ns1.regzone.de... |
| MX | 2 | 17987b46371dd0af.mx2.emailprofi.seznam.c, 17987b46371dd0af.mx1.emailprofi.seznam.c |
| SOA | 1 | ns1.regzone.cz administrator.czechia.cz |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.regzone.cz, ns1.regzone.cz)
Analysis
IP Addresses
cesky-software.cz resolves to one IP number: 217.198.121.20.
other host names including mail01.olsakovsky.cz, portugal-reiseprofi.de, corpos.eu, progatech.cz and a.mx.olsakovsky.cz share IP numbers with cesky-software.cz.
Name Servers
cesky-software.cz is delegated to three name servers ns1.regzone.cz, ns1.regzone.de and ns1.regzone.info.
cesky-software.cz at least partially shares name servers with other domains, for instance metronews.ru, mujmost.cz, hojgr.eu, databazelekaru.cz and lecive-rostliny.cz.
Host names with two IP numbers:
ns1.regzone.cz points to: 2a00:19a0:3:71:0:d9c6:710a:1 and 217.198.113.10.
ns1.regzone.de points to: 2600:3c02::f03c:91ff:fedb:a6e7 and 23.92.29.43.
ns1.regzone.info points to: 2001:1528:147::10 and 81.0.233.10.
Mail Servers
Two mail servers handle cesky-software.cz: 17987b46371dd0af.mx1.emailprofi.seznam.cz and 17987b46371dd0af.mx2.emailprofi.seznam.cz.
Host names with two IP numbers:
The host name 17987b46371dd0af.mx1.emailprofi.seznam.cz points to 2a02:598:2::1056 and 77.75.77.56; the host name 17987b46371dd0af.mx2.emailprofi.seznam.cz points to 2a02:598:2::1146 and 77.75.77.146.