integer.cz - robtex.com
integer.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:1528:240::1f🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network | ||||||
| PTR | neuron.blueboard.cz | ||||||
| A | 217.11.249.141🇨🇿 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 2016-07-14 #45 | ||||||
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=1778350634 | ||||||
Same first word
Similar names
DNS History
7 records (6 active, 1 former)
●NSjaguar.blueboard.cz2026-03-03 → 2026-05-09 · 3 obs
● 2026-03-03 03:13:48
● 2026-05-09 18:45:08
●NSns2.blueboard.cz2017-01-10 → 2026-05-09 · 2 obs
● 2026-05-09 18:45:08
●NSshinzon.blueboard.cz2017-01-10 → 2026-05-09 · 2 obs
● 2026-05-09 18:45:08
●MXjaguar.blueboard.cz2017-01-10 → 2026-05-09 · 2 obs
● 2026-05-09 18:45:08
○MXns2.blueboard.cz2017-01-10 → 2020-02-18 · 4 obs
● 2020-02-18 08:44:16
○ 2026-03-03 03:13:48
○ 2026-05-09 18:45:08
●A2001:1528:240::1f2017-01-10 → 2026-05-09 · 2 obs
● 2026-05-09 18:45:08
●A217.11.249.1412017-01-10 → 2026-05-09 · 2 obs
● 2026-05-09 18:45:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| integer.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
⚠️ Insecure (no DNSSEC)
No DS record for integer.cz (unsigned zone)
⏱️ Timing
Total: 1169ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.11.249.141 |
| AAAA | 1 | 2001:1528:240::1f |
| NS | 2 | shinzon.blueboard.cz, ns2.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
integer.cz points to two IPs: 2001:1528:240::1f and 217.11.249.141.
Other host names including sempa.cz, obuvkunes.com, zda.cz, dromedar.cz and vetmedik.cz share IP numbers with integer.cz.
Name Servers
integer.cz is delegated to three name servers: jaguar.blueboard.cz, ns2.blueboard.cz and shinzon.blueboard.cz.
integer.cz at least partially shares name servers with other domains, including valdes.cz, agj.cz, palenice.eu, nara.cz and identity.cz.
These name servers are often used together with ns2.miniserver.cz.
Host names with two IP numbers:
jaguar.blueboard.cz points to: 2a00:1ed0:45::c and 178.251.187.8
ns2.blueboard.cz points to: 2a01:4f8:13b:8d4::2 and 195.201.57.122
shinzon.blueboard.cz points to: 2a00:1ed0:45::b and 178.251.187.7
Mail Servers
integer.cz is handled by a single mail server, jaguar.blueboard.cz.
integer.cz shares its mail server setup with other domains, including vyfotim.cz, magazinokrase.cz, freespace.cz, kolobezky-ceskyraj.cz and stavby-dozor.cz.
The mail servers for integer.cz are shared with other domains, for instance technik-building.cz, yacco.cz, klimacentrum.cz, tsjc.cz and zpravyzchebu.cz.