mx.jbcsystem.cz - robtex.com
mx.jbcsystem.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 80.79.21.63🇨🇿 MASTER-AS80.79.16.0/20 MASTER-NET-2 | ||||||
| PTR | 80-79-21-63.static.masterinter.net | ||||||
jbcsystem.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 93.185.97.167🇨🇿 VSHOSTING93.185.96.0/20 II. | ||||||
| NS | ns.winet.cz ⭐ | ||||||
| NS | nt.winet.cz | ||||||
| MX | mx.weby.cz ⭐ | ||||||
| TXT | v=spf1 a mx ip4:93.185.97.160/27 ip4:217.16.185.0/24 -all | ||||||
| SOA | ns.winet.czadministrator@winet.cz serial=1445693963 | ||||||
Previously MX for
Same first word
Similar names
xm.hk.cn |
xm.fj.cn |
xm.pl |
xm.vn.ua |
xm.house |
xm.mk |
xm.com |
xm.biz |
xm.media |
xm.fyi |
xm.pe |
xm.wtf |
xm.nl |
xm.cn |
xm.gov.cn |
xm.city |
xm.ca |
xm.ee |
xm.ae |
xm.lc |
xm.chat |
xm.life |
xm.net |
xm.cm |
DNS History
1 record (1 active, 0 former)
●A80.79.21.632015-06-08 → 2026-04-12 · 2 obs
● 2015-06-08 07:49:24
● 2026-04-12 22:59:40
● 2026-04-12 22:59:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | d.ns.nic.cz, c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz | - |
| jbcsystem.cz | nt.winet.cz, ns.winet.cz | 2 records |
✅ Authoritative Response
Server:217.16.185.83
NS records: nt.winet.cz, ns.winet.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jbcsystem.cz (unsigned zone)
⏱️ Timing
Total: 534ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 80.79.21.63 |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (nt.winet.cz, ns.winet.cz)
Analysis
IP Addresses
mx.jbcsystem.cz points to a single IP: 80.79.21.63.
Other host names, for instance mx.elemont.cz, mx.krizek.cz, mx.i-consult.cz, mx.fkhlubocky.cz and mx.lgo.cz share IP numbers with mx.jbcsystem.cz.