developit.cz - dns.ninja
developit.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=1794098844 | ||||||
Same first word
Similar names
Previous names
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DNS History
7 records (6 active, 1 former)
●NSns1.thinline.cz2026-10-22 → 2026-11-08 · 2 obs
● 2026-11-08 01:29:20
●NSns2.thinline.cz2026-10-22 → 2026-11-08 · 2 obs
● 2026-11-08 01:29:20
●NSns3.cesky-hosting.eu2026-10-22 → 2026-11-08 · 2 obs
● 2026-11-08 01:29:20
●MXmx1b20.thinline.cz2026-10-22 → 2026-11-08 · 2 obs
● 2026-11-08 01:29:20
●MXmx1d10.thinline.cz2026-10-22 → 2026-11-08 · 2 obs
● 2026-11-08 01:29:20
●A136.243.19.2332026-11-04 → 2026-11-08 · 3 obs
● 2026-11-04 18:44:40
● 2026-11-08 01:29:20
○A185.158.133.12026-10-22 → 2026-10-22 · 3 obs
○ 2026-11-04 18:44:40
○ 2026-11-08 01:29:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | - |
| developit.cz | ns1.thinline.cz, ns2.thinline.cz, ns3.cesky-hosting.eu | 4 records |
✅ Authoritative Response
Server:91.239.202.18
NS records: ns1.thinline.cz, ns2.thinline.cz, ns3.cesky-hosting.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 910ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 136.243.19.233 |
| NS | 3 | ns1.thinline.cz, ns2.thinline.cz... |
| MX | 2 | mx1b20.thinline.cz (pri: 20), mx1d10.thinline.cz (pri: 10) |
| TXT | 3 | facebook-domain-verification=yysmihml6gg, google-site-verification=JUvFxxZGkPUDMx9... |
| SOA | 1 | ns1.thinline.cz hostmaster.developit.cz |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.thinline.cz, ns1.thinline.cz, ns2.thinline.cz...)
Analysis
IP Addresses
developit.cz has exactly one IP address — 136.243.19.233.
pjaviation.cz, pjaviation.eu, stavbykolacek.cz plus two other host names have IP numbers in common with developit.cz.
Name Servers
developit.cz carries NS records delegating to ns1.thinline.cz, ns2.thinline.cz and ns3.cesky-hosting.eu.
There is at least partial name server overlap between developit.cz and other domains — zryb.cz, sadyjeleni.cz, rzrs.cz and two more among them.
ns1.thinline.cz, ns2.thinline.cz and ns3.cesky-hosting.eu are three hostnames that each resolve to a pair of IP addresses: ns1.thinline.cz to 91.239.200.243 and 2001:67c:e94:0:1:5bef:c8f3:1, ns2.thinline.cz to 82.100.6.2 and 2001:4de8:fa22:0:1:5264:602:1, and ns3.cesky-hosting.eu to 91.239.202.18 and 2001:67c:e94:1:1:5bef:ca12:1.
Mail Servers
developit.cz uses two mail servers, mx1b20.thinline.cz and mx1d10.thinline.cz.
The mail server setup of developit.cz matches that of other domains such as oldrichprucha.cz, gaudeamus-igitur.cz, malesickypohar.cz and two others.
developit.cz uses mail servers that are also used by other domains, including agro-wip.cz, ceramicstudio.cz and jankysucan.cz.
mx1b20.thinline.cz and mx1d10.thinline.cz both carry two IP addresses. The A records for mx1b20.thinline.cz are 82.100.6.3 and 2001:4de8:fa22:0:1:5264:603:1; the A records for mx1d10.thinline.cz are 91.239.200.14 and 2001:67c:e94:0:1:5bef:c80e:1.