xrs.cz - robtex.com
xrs.cz
| DNSSEC | ⚠️ Not signed | ||||||
| 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 | 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 | ||||||
| PTR | mx.blueboard.cz | ||||||
| TXT | v=spf1 a mx include:spf.blueboard.cz -all | ||||||
| SOA | shinzon.blueboard.czhostmaster@shinzon.blueboard.cz serial=2008033680 | ||||||
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=1784584043 | ||||||
Same first word
xrs.ca |
xrs.eu |
xrs.cn |
xrs.uk |
xrs.co.uk |
xrs.fi |
xrs.ru |
xrs.gr |
xrs.co |
xrs.ie |
xrs.pl |
xrs.com.br |
xrs.net |
xrs.ir |
xrs.us |
xrs.it |
xrs.com |
xrs.be |
xrs.de |
xrs.ch |
xrs.mobi |
xrs.org |
xrs.cz |
xrs.nl |
xrs.cl |
Similar names
DNS History
8 records (6 active, 2 former)
●NSjaguar.blueboard.cz2026-06-04 → 2026-07-20 · 3 obs
● 2026-06-04 18:57:34
● 2026-07-20 22:24:00
●NSns2.blueboard.cz2015-08-22 → 2026-07-20 · 2 obs
● 2026-07-20 22:24:00
●NSshinzon.blueboard.cz2015-08-22 → 2026-07-20 · 2 obs
● 2026-07-20 22:24:00
○MXjaguar.blueboard.cz2015-08-22 → 2020-03-12 · 4 obs
● 2020-03-12 21:29:32
○ 2026-06-04 18:57:34
○ 2026-07-20 22:24:00
●MXmx.blueboard.cz2026-06-04 → 2026-07-20 · 3 obs
● 2026-06-04 18:57:34
● 2026-07-20 22:24:00
○MXns2.blueboard.cz2015-08-22 → 2020-03-12 · 4 obs
● 2020-03-12 21:29:32
○ 2026-06-04 18:57:34
○ 2026-07-20 22:24:00
●A2001:1528:240::152026-06-04 → 2026-07-20 · 3 obs
● 2026-06-04 18:57:34
● 2026-07-20 22:24:00
●A217.11.249.1392015-08-22 → 2026-07-20 · 2 obs
● 2026-07-20 22:24:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| xrs.cz | jaguar.blueboard.cz, shinzon.blueboard.cz, ns2.blueboard.cz | 3 records |
✅ Authoritative Response
Server:178.251.187.8
NS records: jaguar.blueboard.cz, shinzon.blueboard.cz, ns2.blueboard.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1429ms | 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 | mx.blueboard.cz (pri: 10) |
| TXT | 1 | v=spf1 a mx include:spf.blueboard.cz -al |
| SOA | 1 | shinzon.blueboard.cz hostmaster.shinzon. |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (shinzon.blueboard.cz, jaguar.blueboard.cz, ns2.blueboard.cz)
Analysis
IP Addresses
xrs.cz resolves to the IP addresses 217.11.249.139 and 2001:1528:240::15
Two other host names, along with rossi.cz, onigiri.cz and farmstudio.eu, also share IP numbers with xrs.cz.
Name Servers
DNS for xrs.cz is handled by three authoritative name servers: jaguar.blueboard.cz, ns2.blueboard.cz and shinzon.blueboard.cz.
xrs.cz shares at least some of its name servers with other domains, including zuzadesignstore.cz, akhpl.cz, mojapekaren.sk and two others.
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
The sole mail server for xrs.cz is mx.blueboard.cz.
Among the domains sharing a mail server setup with xrs.cz are otakar.com, likvidace.cz, avdk.cz and two others.
mx.blueboard.cz points to two IP addresses: 81.0.209.130 and 2001:1528:240::ca.