prolinux.cz - dns.ninja
prolinux.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.0.225.147🇨🇿 CASABLANCA-AS81.0.225.0/24 Casablanca INT | ||||||
| NS | ns3.jni.cz ⭐ | ||||||
| A | 81.0.225.145🇨🇿 CASABLANCA-AS81.0.225.0/24 Casablanca INT | ||||||
| NS | ns2.jni.cz | ||||||
| A | 2a01:28:ca:188::209🇨🇿 SuperNetwork2a01:28::/32 s.r.o. | ||||||
| A | 81.0.217.109🇨🇿 CASABLANCA-AS81.0.217.0/24 Casablanca INT | ||||||
| MX | mail.prolinux.cz ⭐ | ||||||
| A | 81.0.225.149🇨🇿 CASABLANCA-AS81.0.225.0/24 Casablanca INT | ||||||
| TXT | v=spf1 mx a -all | ||||||
| SOA | ns3.jni.czdns@jni.cz 2025-09-28 #1 | ||||||
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=1785593843 | ||||||
Subdomains
mail.prolinux.cz |
Same first word
Similar names
DNS History
8 records (4 active, 4 former)
○NSns1.jni.cz2015-08-13 → 2016-03-12 · 4 obs
● 2016-03-12 06:08:30
○ 2017-02-19 06:33:38
○ 2026-08-01 15:03:34
●NSns3.jni.cz2017-02-19 → 2026-08-01 · 3 obs
● 2017-02-19 06:33:38
● 2026-08-01 15:03:34
●MXmail.prolinux.cz2015-08-13 → 2026-08-01 · 2 obs
● 2026-08-01 15:03:34
○MXmail2.jni.cz2015-08-13 → 2016-03-12 · 4 obs
● 2016-03-12 06:08:30
○ 2017-02-19 06:33:38
○ 2026-08-01 15:03:34
●A81.0.225.1472026-02-25 → 2026-08-01 · 3 obs
● 2026-02-25 14:23:00
● 2026-08-01 15:03:34
○A89.187.135.2092017-02-19 → 2017-02-19 · 4 obs
● 2017-02-19 06:33:38
○ 2026-02-25 14:23:00
○ 2026-08-01 15:03:34
○A89.187.135.762015-08-13 → 2016-03-12 · 4 obs
● 2016-03-12 06:08:30
○ 2017-02-19 06:33:38
○ 2026-08-01 15:03:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, d.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz | 8 records |
| prolinux.cz | ns2.jni.cz, ns3.jni.cz | - |
✅ Authoritative Response
Server:81.0.217.109
NS records: ns2.jni.cz, ns3.jni.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for prolinux.cz (unsigned zone)
⏱️ Timing
Total: 980ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.0.225.147 |
| NS | 2 | ns2.jni.cz, ns3.jni.cz |
| MX | 1 | mail.prolinux.cz (pri: 10) |
| TXT | 1 | v=spf1 mx a -all |
| SOA | 1 | ns3.jni.cz dns.jni.cz |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (d.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz...)
Analysis
Hierarchy
prolinux.cz is a parent domain of mail.prolinux.cz.
IP Addresses
prolinux.cz has exactly one IP address — 81.0.225.147.
kachlovakamna.cz, recoma.cz, lenovo.sk plus two other host names have IP numbers in common with prolinux.cz.
Name Servers
prolinux.cz is served by two delegated name servers, ns2.jni.cz and ns3.jni.cz.
The name server configuration of prolinux.cz is shared with other domains, for instance vilagarni.cz, rojicek.cz, electrolux-exclusive-program.cz and two others.
Host names pointing to two IP addresses:
ns2.jni.cz maps to two IP addresses — 81.0.217.109 and 2a01:28:ca:188::209.
Host names resolving to a single IP address:
ns3.jni.cz points to the IP address 81.0.225.145.
Mail Servers
prolinux.cz uses one mail server — mail.prolinux.cz.
There is one IP number for mail.prolinux.cz: 81.0.225.149.