developtech.cz - robtex.com
developtech.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=1787510843 | ||||||
Subdomains
Same first word
developtech.in |
developtech.info |
developtech.cz |
developtech.com |
developtech.net |
developtech.ru |
developtech.xyz |
Similar names
Previous names
Next names
DNS History
14 records (6 active, 8 former)
○NSalfa.ns.active24.cz2015-06-19 → 2017-04-03 · 4 obs
● 2017-04-03 17:38:46
○ 2026-08-23 11:21:32
○ 2026-08-23 19:25:06
○NSbeta.ns.active24.cz2015-06-19 → 2017-04-03 · 4 obs
● 2017-04-03 17:38:46
○ 2026-08-23 11:21:32
○ 2026-08-23 19:25:06
○NSgama.ns.active24.sk2015-06-19 → 2017-04-03 · 4 obs
● 2017-04-03 17:38:46
○ 2026-08-23 11:21:32
○ 2026-08-23 19:25:06
●NSns1.websupport.cz2026-08-23 → 2026-08-23 · 3 obs
● 2026-08-23 11:21:32
● 2026-08-23 19:25:06
●NSns2.websupport.cz2026-08-23 → 2026-08-23 · 3 obs
● 2026-08-23 11:21:32
● 2026-08-23 19:25:06
●NSns3.websupport.eu2026-08-23 → 2026-08-23 · 3 obs
● 2026-08-23 11:21:32
● 2026-08-23 19:25:06
○MXin.smtp.cz2015-06-19 → 2016-09-08 · 4 obs
● 2016-09-08 09:14:52
○ 2017-04-03 17:38:46
○ 2026-08-23 19:25:06
●MXmailin1.developtech.cz2026-08-23 → 2026-08-23 · 3 obs
● 2026-08-23 11:21:32
● 2026-08-23 19:25:06
●MXmailin2.developtech.cz2026-08-23 → 2026-08-23 · 3 obs
● 2026-08-23 11:21:32
● 2026-08-23 19:25:06
○MXmx.smtp.cz2015-06-19 → 2016-09-08 · 4 obs
● 2016-09-08 09:14:52
○ 2017-04-03 17:38:46
○ 2026-08-23 19:25:06
○MXmx1.active24.com2017-04-03 → 2017-04-03 · 4 obs
● 2017-04-03 17:38:46
○ 2026-08-23 11:21:32
○ 2026-08-23 19:25:06
○MXmx2.active24.com2017-04-03 → 2017-04-03 · 4 obs
● 2017-04-03 17:38:46
○ 2026-08-23 11:21:32
○ 2026-08-23 19:25:06
●A46.28.105.772026-08-23 → 2026-08-23 · 3 obs
● 2026-08-23 11:21:32
● 2026-08-23 19:25:06
○A81.0.208.1192015-06-19 → 2017-04-03 · 4 obs
● 2017-04-03 17:38:46
○ 2026-08-23 11:21:32
○ 2026-08-23 19:25:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | d.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz | 8 records |
| developtech.cz | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server:185.71.159.12
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: 1176ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.28.105.77 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 2 | mailin1.developtech.cz (pri: 10), mailin2.developtech.cz (pri: 100) |
| TXT | 1 | v=spf1 include:spf.active24.com include: |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz...)
Analysis
Hierarchy
developtech.cz serves as the parent of mailin1.developtech.cz and mailin2.developtech.cz.
IP Addresses
developtech.cz has exactly one IP address — 46.28.105.77.
mapp.cz, kdovolal.cz, musicdata.sk plus two other host names have IP numbers in common with developtech.cz.
Name Servers
developtech.cz is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
There is at least partial name server overlap between developtech.cz and other domains — smutecnioznameni.eu, typl.cz, cleans.cz and two more among them.
These name servers are routinely deployed together with the name servers ns1.websupport.sk.
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
developtech.cz uses two mail servers, mailin1.developtech.cz and mailin2.developtech.cz.
mailin1.developtech.cz and mailin2.developtech.cz each resolve to two IP addresses: mailin1.developtech.cz points to 45.13.137.103 and 2a00:4b40:aaaa:2101:45:13:137:114, while mailin2.developtech.cz points to 45.13.137.113 and 2a00:4b40:aaaa:2101:45:13:137:103.