mx2.jbcsystem.cz - robtex.com

mx2.jbcsystem.cz

CNAMEmx2.weby.cz
DNSSEC⚠️ Not signed
A217.16.185.83🇨🇿 VSHOSTING217.16.176.0/20 III.
PTRnt.winet.cz

jbcsystem.cz

DNSSEC⚠️ Not signed
A93.185.97.167🇨🇿 VSHOSTING93.185.96.0/20 II.
NSns.winet.cz ⭐
NSnt.winet.cz
MXmx.weby.cz ⭐
TXTv=spf1 a mx ip4:93.185.97.160/27 ip4:217.16.185.0/24 -all
SOAns.winet.czadministrator@winet.cz serial=1445693963

Previously MX for

jbcsystem.cz

Same first word

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A217.16.185.83CNAMEmx2.weby.cz
○A217.16.185.832015-06-27 → 2016-09-17 · 4 obs
● 2015-06-27 08:32:42
● 2016-09-17 18:18:28
○ 2026-04-12 10:00:04
○ 2026-04-12 10:00:06
●CNAMEmx2.weby.cz2015-06-27 → 2026-04-12 · 2 obs
● 2015-06-27 08:32:42
● 2026-04-12 10:00:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
czd.ns.nic.cz, c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz-
jbcsystem.czns.winet.cz, nt.winet.cz2 records

✅ Authoritative Response

Server:217.16.185.83

NS records: ns.winet.cz, nt.winet.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jbcsystem.cz (unsigned zone)

⏱️ Timing

Total: 477ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1mx2.weby.cz

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.winet.cz, nt.winet.cz)

Analysis

IP Addresses

mx2.jbcsystem.cz points to a single IP: 217.16.185.83.

Other host names, for instance mx2.weby.cz, kampa.winet.cz and nt.winet.cz share IP numbers with mx2.jbcsystem.cz.