jetsystems.cz - robtex.com

jetsystems.cz

DNSSEC⚠️ Not signed
A178.22.112.215🇨🇿 SPRINTEL-SRO178.22.112.0/21 JETSYSTEMS
NSwh1.sprintel.cz ⭐
A185.63.24.12🇨🇿 SPRINTEL-SRO185.63.24.0/22 Sprintel
PTRwh1.sprintel.cz
NSwh2.sprintel.cz
A178.22.112.211🇨🇿 SPRINTEL-SRO178.22.112.0/21 JETSYSTEMS
PTRwh2.sprintel.cz
MXmail.jetsystems.cz ⭐
A178.22.112.98🇨🇿 SPRINTEL-SRO178.22.112.0/21 JETSYSTEMS
PTRmail.sprintel.cz
MXmx2.sprintel.cz(20)
A185.63.24.6🇨🇿 SPRINTEL-SRO185.63.24.0/22 Sprintel
PTRmx2.sprintel.cz
TXTv=spf1 mx -all
SOAwh1.sprintel.czadmin@sprintel.cz 2026-02-23 #1

cz

DNSSEC🔒 Signed (DS record present)
NSa.ns.nic.cz ⭐
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz
SOAa.ns.nic.czhostmaster@nic.cz serial=1774594035

Subdomains

mail.jetsystems.cz
www.jetsystems.cz

Same first word

jetsystems.pro
jetsystems.com
jetsystems.cz

Similar names

ejtsystems.com

DNS History

10 records (5 active, 5 former)

20162017201820192020202120222023202420252026NSwh1.sprintel.czwh2.sprintel.czalfa.ns.active24.czbeta.ns.active24.czgama.ns.active24.skMXmail.jetsystems.czmx2.sprintel.czmail.sprintel.czA178.22.112.215178.22.112.18
○NSalfa.ns.active24.cz2015-06-20 → 2017-08-06 · 4 obs
● 2015-06-20 01:17:16
● 2017-08-06 21:40:26
○ 2026-03-17 21:53:38
○ 2026-03-27 07:17:28
○NSbeta.ns.active24.cz2015-06-20 → 2017-08-06 · 4 obs
● 2015-06-20 01:17:16
● 2017-08-06 21:40:26
○ 2026-03-17 21:53:38
○ 2026-03-27 07:17:28
○NSgama.ns.active24.sk2015-06-20 → 2017-08-06 · 4 obs
● 2015-06-20 01:17:16
● 2017-08-06 21:40:26
○ 2026-03-17 21:53:38
○ 2026-03-27 07:17:28
●NSwh1.sprintel.cz2026-03-17 → 2026-03-27 · 3 obs
○ 2017-08-06 21:40:26
● 2026-03-17 21:53:38
● 2026-03-27 07:17:28
●NSwh2.sprintel.cz2026-03-17 → 2026-03-27 · 3 obs
○ 2017-08-06 21:40:26
● 2026-03-17 21:53:38
● 2026-03-27 07:17:28
●MXmail.jetsystems.cz2026-03-17 → 2026-03-27 · 3 obs
○ 2017-08-06 21:40:26
● 2026-03-17 21:53:38
● 2026-03-27 07:17:28
○MXmail.sprintel.cz2015-06-20 → 2017-08-06 · 4 obs
● 2015-06-20 01:17:16
● 2017-08-06 21:40:26
○ 2026-03-17 21:53:38
○ 2026-03-27 07:17:28
●MXmx2.sprintel.cz2026-03-17 → 2026-03-27 · 3 obs
○ 2017-08-06 21:40:26
● 2026-03-17 21:53:38
● 2026-03-27 07:17:28
○A178.22.112.182015-06-20 → 2017-08-06 · 4 obs
● 2015-06-20 01:17:16
● 2017-08-06 21:40:26
○ 2026-03-17 21:53:38
○ 2026-03-27 07:17:28
●A178.22.112.2152026-03-17 → 2026-03-27 · 3 obs
○ 2017-08-06 21:40:26
● 2026-03-17 21:53:38
● 2026-03-27 07:17:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
czd.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz-
jetsystems.czwh1.sprintel.cz, wh2.sprintel.cz2 records

✅ Authoritative Response

Server:178.22.112.211

NS records: wh1.sprintel.cz, wh2.sprintel.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jetsystems.cz (unsigned zone)

⏱️ Timing

Total: 502ms | Queries: -

📄 Records

TypeCountSample Data
A1178.22.112.215
NS2wh1.sprintel.cz, wh2.sprintel.cz
MX2mail.jetsystems.cz (pri: 10), mx2.sprintel.cz (pri: 20)
TXT1v=spf1 mx -all
SOA1wh1.sprintel.cz admin.sprintel.cz

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (wh1.sprintel.cz, wh2.sprintel.cz)

Analysis

Hierarchy

jetsystems.cz is parent of mail.jetsystems.cz and www.jetsystems.cz.

IP Addresses

jetsystems.cz resolves to a single IP address: 178.22.112.215.

Other host names such as chropyne.net, www.jetsystems.cz and sprintel.cz share IP numbers with jetsystems.cz.

Name Servers

jetsystems.cz's delegation uses two name servers, wh1.sprintel.cz and wh2.sprintel.cz.

jetsystems.cz shares the same name server setup as other domains, for example starp.cz, 24.63.185.in-addr.arpa, snytpv.cz, studiospringer.cz and 113.22.178.in-addr.arpa.

Host names with a single IP:

wh1.sprintel.cz points to 185.63.24.12.

wh2.sprintel.cz points to 178.22.112.211.

Mail Servers

jetsystems.cz is handled by two mail servers: mail.jetsystems.cz and mx2.sprintel.cz.

The mail servers for jetsystems.cz are shared with other domains, for instance sprintel.cz, mptoner.cz, snytpv.cz, studiospringer.cz and silinet.cz.

These mail servers are commonly used with mail.sprintel.cz, mail.snytpv.cz, mail.studiospringer.cz, mail.chropyne.net, mail.bilovice-lutotin.cz and mail.buttoncz.cz.

Host names with a single IP:

mail.jetsystems.cz points to 178.22.112.98.

mx2.sprintel.cz points to 185.63.24.6.