codebase.cz - robtex.com
codebase.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2001:1528:240::29🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network | ||||||
| PTR | scimitar.blueboard.cz | ||||||
| A | 217.11.249.145🇨🇿 CASABLANCA-AS217.11.248.0/23 Casablanca INT | ||||||
| NS | shinzon.blueboard.cz ⭐ | ||||||
| A | 2a00:1ed0:45::b🇨🇿 VSHOSTING2a00:1ed0::/32 | ||||||
| A | 178.251.187.7🇨🇿 VSHOSTING178.251.184.0/21 | ||||||
| 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 | ||||||
| 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 | ||||||
| MX | mx.blueboard.cz ⭐ | ||||||
| A | 2001:1528:240::ca🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network | ||||||
| PTR | mx.blueboard.cz | ||||||
| A | 81.0.209.130🇨🇿 CASABLANCA-AS81.0.208.0/23 Casablanca INT | ||||||
| TXT | v=spf1 a mx include:spf.blueboard.cz -all | ||||||
| SOA | shinzon.blueboard.czhostmaster@blueboard.cz serial=2024013493 | ||||||
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=1790693247 | ||||||
Same first word
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DNS History
6 records (6 active, 0 former)
●NSjaguar.blueboard.cz2026-09-26 → 2026-09-29 · 2 obs
● 2026-09-29 15:13:42
●NSns2.blueboard.cz2026-09-26 → 2026-09-29 · 2 obs
● 2026-09-29 15:13:42
●NSshinzon.blueboard.cz2026-09-26 → 2026-09-29 · 2 obs
● 2026-09-29 15:13:42
●MXmx.blueboard.cz2026-09-26 → 2026-09-29 · 2 obs
● 2026-09-29 15:13:42
●A2001:1528:240::292026-09-26 → 2026-09-29 · 2 obs
● 2026-09-29 15:13:42
●A217.11.249.1452026-09-26 → 2026-09-29 · 2 obs
● 2026-09-29 15:13:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | b.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz | 8 records |
| codebase.cz | ns2.blueboard.cz, jaguar.blueboard.cz, shinzon.blueboard.cz | 3 records |
✅ Authoritative Response
Server:195.201.57.122
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: 1229ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.11.249.145 |
| AAAA | 1 | 2001:1528:240::29 |
| NS | 2 | ns2.blueboard.cz, shinzon.blueboard.cz |
| MX | 1 | mx.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: 11
In-bailiwick: 8 (a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz...)
Out-of-bailiwick: 3 (ns2.blueboard.cz, jaguar.blueboard.cz, shinzon.blueboard.cz)
Analysis
IP Addresses
codebase.cz points to the IP addresses 217.11.249.145 and 2001:1528:240::29
martinknor.cz, sunmarketing.cz, jirrmo.cz and two other host names share IP numbers with codebase.cz.
Name Servers
DNS for codebase.cz is handled by three authoritative name servers: jaguar.blueboard.cz, ns2.blueboard.cz and shinzon.blueboard.cz.
At least some of codebase.cz's name servers are shared with other domains, for example stavebnihp.cz, avel.cz, johnsmith.cz and two more.
These name servers tend to be used in conjunction with the name servers ns2.miniserver.cz.
Three hostnames — jaguar.blueboard.cz, ns2.blueboard.cz and shinzon.blueboard.cz — each have two IP addresses: jaguar.blueboard.cz has 178.251.187.8 and 2a00:1ed0:45::c, ns2.blueboard.cz has 195.201.57.122 and 2a01:4f8:13b:8d4::2, and shinzon.blueboard.cz has 178.251.187.7 and 2a00:1ed0:45::b.
Mail Servers
Mail for codebase.cz is handled by a single mail server, mx.blueboard.cz.
codebase.cz uses an identical mail server configuration to several other domains — among them pragueapartments4u.com, fotopexeso.cz, cankovska.cz and two more.
mx.blueboard.cz directs to two IP numbers, 81.0.209.130 and 2001:1528:240::ca.