proconstruct.cz - dns.ninja
proconstruct.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2001:1528:240::15🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network | ||||||
| PTR | krios.blueboard.cz | ||||||
| A | 217.11.249.139🇨🇿 CASABLANCA-AS217.11.248.0/23 Casablanca INT | ||||||
| NS | shinzon.blueboard.cz ⭐ | ||||||
| A | 2a00:1ed0:45::b🇨🇿 VSHOSTING2a00:1ed0::/32 | ||||||
| PTR | shinzon.blueboard.cz | ||||||
| A | 178.251.187.7🇨🇿 VSHOSTING178.251.184.0/21 | ||||||
| PTR | shinzon.blueboard.cz | ||||||
| NS | jaguar.blueboard.cz ⚠️ Not in zone NS records | ||||||
| A | 2a00:1ed0:45::c🇨🇿 VSHOSTING2a00:1ed0::/32 | ||||||
| PTR | jaguar.blueboard.cz | ||||||
| A | 178.251.187.8🇨🇿 VSHOSTING178.251.184.0/21 | ||||||
| PTR | jaguar.blueboard.cz | ||||||
| NS | ns2.blueboard.cz | ||||||
| A | 2a01:4f8:13b:8d4::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| A | 195.201.57.122🇩🇪 Hetzner195.201.0.0/16 HETZNER-DC | ||||||
| PTR | ns2.blueboard.cz | ||||||
| MX | jaguar.blueboard.cz ⭐ | ||||||
| A | 2a00:1ed0:45::c🇨🇿 VSHOSTING2a00:1ed0::/32 | ||||||
| PTR | jaguar.blueboard.cz | ||||||
| A | 178.251.187.8🇨🇿 VSHOSTING178.251.184.0/21 | ||||||
| PTR | jaguar.blueboard.cz | ||||||
| TXT | v=spf1 a mx include:spf.blueboard.cz -all | ||||||
| SOA | shinzon.blueboard.czhostmaster@blueboard.cz 2022-05-13 #92 | ||||||
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=1783217839 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSjaguar.blueboard.cz2026-04-15 → 2026-07-05 · 2 obs
● 2026-07-05 02:49:04
●NSns2.blueboard.cz2026-04-15 → 2026-07-05 · 2 obs
● 2026-07-05 02:49:04
●NSshinzon.blueboard.cz2026-04-15 → 2026-07-05 · 2 obs
● 2026-07-05 02:49:04
●MXjaguar.blueboard.cz2026-04-15 → 2026-07-05 · 2 obs
● 2026-07-05 02:49:04
●A2001:1528:240::152026-04-15 → 2026-07-05 · 2 obs
● 2026-07-05 02:49:04
●A217.11.249.1392026-04-15 → 2026-07-05 · 2 obs
● 2026-07-05 02:49:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| proconstruct.cz | ns2.blueboard.cz, jaguar.blueboard.cz, shinzon.blueboard.cz | 3 records |
✅ Authoritative Response
Server:178.251.187.8
NS records: ns2.blueboard.cz, jaguar.blueboard.cz, shinzon.blueboard.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1057ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.11.249.139 |
| AAAA | 1 | 2001:1528:240::15 |
| NS | 2 | ns2.blueboard.cz, shinzon.blueboard.cz |
| MX | 1 | jaguar.blueboard.cz (pri: 10) |
| TXT | 1 | v=spf1 a mx include:spf.blueboard.cz -al |
| SOA | 1 | shinzon.blueboard.cz hostmaster.blueboar |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns2.blueboard.cz, jaguar.blueboard.cz, shinzon.blueboard.cz)
Analysis
IP Addresses
proconstruct.cz directs to two IP numbers, 217.11.249.139 and 2001:1528:240::15
lrsoftware.cz, retrofilm.org, talentin.cz plus two other host names have IP numbers in common with proconstruct.cz.
Name Servers
Three name servers are authoritative for proconstruct.cz: jaguar.blueboard.cz, ns2.blueboard.cz and shinzon.blueboard.cz.
proconstruct.cz partially shares its NS delegation with several other domains, including protonczech.com, portin.net, fashionvictim.cz and two others.
jaguar.blueboard.cz resolves to 178.251.187.8 and 2a00:1ed0:45::c. ns2.blueboard.cz resolves to 195.201.57.122 and 2a01:4f8:13b:8d4::2. shinzon.blueboard.cz resolves to 178.251.187.7 and 2a00:1ed0:45::b. All three hostnames point to two IP numbers each.
Mail Servers
proconstruct.cz uses one mail server — jaguar.blueboard.cz.
The mail server setup of proconstruct.cz matches that of other domains such as jaguar.blueboard.cz, frenkee.com, lumino.cz and two others.
At least some of the mail servers used by proconstruct.cz are shared with other domains: mshluk.cz, kopeckostek.cz, exehockey.sk and two others among them.