developstudio.cz - dns.ninja
developstudio.cz
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=1783820843 | ||||||
Subdomains
mail.developstudio.cz |
Same first word
developstudio.cz |
developstudio.com |
DNS History
7 records (7 active, 0 former)
●NSns1.websupport.cz2026-02-23 → 2026-07-12 · 2 obs
● 2026-07-12 02:19:18
●NSns2.websupport.cz2026-02-23 → 2026-07-12 · 2 obs
● 2026-07-12 02:19:18
●NSns3.websupport.eu2026-02-23 → 2026-07-12 · 2 obs
● 2026-07-12 02:19:18
●MXmx10.active24.cz2026-02-23 → 2026-07-12 · 2 obs
● 2026-07-12 02:19:18
●MXmx20.active24.cz2026-02-23 → 2026-07-12 · 2 obs
● 2026-07-12 02:19:18
●A2a00:4b40:aaaa:2005::62026-02-23 → 2026-07-12 · 2 obs
● 2026-07-12 02:19:18
●A37.9.175.1642026-02-23 → 2026-07-12 · 2 obs
● 2026-07-12 02:19:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | b.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz | - |
| developstudio.cz | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server:45.10.97.11
NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 3641ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.164 |
| AAAA | 1 | 2a00:4b40:aaaa:2005::6 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 2 | mx10.active24.cz (pri: 10), mx20.active24.cz (pri: 100) |
| TXT | 2 | v=spf1 a mx include:_spf.websupport.cz ?, spf2.0/pra a mx include:_sid.websupport. |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
Analysis
Hierarchy
mail.developstudio.cz is a subdomain of developstudio.cz.
IP Addresses
developstudio.cz points to the IP addresses 37.9.175.164 and 2a00:4b40:aaaa:2005::6
pixiu.cz, autoservis-slany.cz, b.mx.fogo-industry.cz plus two other host names have IP numbers in common with developstudio.cz.
Name Servers
developstudio.cz is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
The name servers of developstudio.cz overlap at least partially with those of other domains — among them ceramicaviviente.cz, acc.cz, tignum.nl and two more.
ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu each resolve to two IP addresses: ns1.websupport.cz resolves to 45.10.97.11 and 2a10:bbc0::11; ns2.websupport.cz resolves to 185.71.159.12 and 2a02:250:3::12; ns3.websupport.eu resolves to 45.10.97.13 and 2a10:bbc0::13.
Mail Servers
developstudio.cz uses two mail servers, mx10.active24.cz and mx20.active24.cz.
The mail server setup of developstudio.cz matches that of other domains such as ds-bohemia.cz, onlinewatt.com, jurek.biz and two others.
mx10.active24.cz and mx20.active24.cz each resolve to two IP addresses: mx10.active24.cz points to 45.13.137.85 and 2a00:4b40:aaaa:2101:45:13:137:85, while mx20.active24.cz points to 45.13.137.86 and 2a00:4b40:aaaa:2101:45:13:137:86.