datatech.cz - dns.ninja
datatech.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 89.187.135.120🇨🇿 AS3559289.187.134.0/23 | ||||||
| PTR | datatech.dc3.cz | ||||||
| NS | ns1.tele3.cz ⭐ | ||||||
| A | 2001:1528:123::d01CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network | ||||||
| A | 81.0.217.111 | ||||||
| NS | ns2.tele3.cz | ||||||
| A | 2001:4de8:fa71:7e1e::d02 | ||||||
| A | 95.80.251.222 | ||||||
| NS | ns3.tele3.eu | ||||||
| A | 2a01:4f8:162:24c1::d03Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| A | 5.9.97.250 | ||||||
| MX | mail.datatech.cz ⭐ | ||||||
| A | 2a01:5f0:c001:124:2::e190 | ||||||
| A | 89.187.149.190 | ||||||
| TXT | v=spf1 a ip4:89.187.135.120 ip4:89.187.135.194 ip4:46.174.33.121 include:mail... | ||||||
| SOA | ns1.tele3.czroot@tele3.cz serial=1783721762 | ||||||
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=1784634442 | ||||||
Subdomains
mail.datatech.cz |
Same first word
Similar names
DNS History
13 records (5 active, 8 former)
○NSns3.tele3.cz2015-07-25 → 2016-11-28 · 4 obs
● 2016-11-28 06:37:24
○ 2026-02-23 10:02:16
○ 2026-07-21 12:39:20
●NSns3.tele3.eu2026-02-23 → 2026-07-21 · 3 obs
● 2026-02-23 10:02:16
● 2026-07-21 12:39:20
○NSns4.tele3.eu2015-11-21 → 2016-11-28 · 5 obs
● 2015-11-21 17:16:08
● 2016-11-28 06:37:24
○ 2026-02-23 10:02:16
○ 2026-07-21 12:39:20
○NSns4.tele3.sk2015-07-25 → 2015-07-25 · 3 obs
○ 2015-11-21 17:16:08
○ 2026-07-21 12:39:20
○MXalt1.aspmx.l.google.com2015-07-25 → 2016-11-28 · 4 obs
● 2016-11-28 06:37:24
○ 2026-02-23 10:02:16
○ 2026-07-21 12:39:20
○MXalt2.aspmx.l.google.com2015-07-25 → 2016-11-28 · 4 obs
● 2016-11-28 06:37:24
○ 2026-02-23 10:02:16
○ 2026-07-21 12:39:20
○MXaspmx.l.google.com2015-07-25 → 2016-11-28 · 4 obs
● 2016-11-28 06:37:24
○ 2026-02-23 10:02:16
○ 2026-07-21 12:39:20
○MXaspmx2.googlemail.com2015-07-25 → 2016-11-28 · 4 obs
● 2016-11-28 06:37:24
○ 2026-02-23 10:02:16
○ 2026-07-21 12:39:20
○MXaspmx3.googlemail.com2015-07-25 → 2016-11-28 · 4 obs
● 2016-11-28 06:37:24
○ 2026-02-23 10:02:16
○ 2026-07-21 12:39:20
●MXmail.datatech.cz2026-02-23 → 2026-07-21 · 3 obs
● 2026-02-23 10:02:16
● 2026-07-21 12:39:20
●A89.187.135.1202015-07-25 → 2026-07-21 · 2 obs
● 2026-07-21 12:39:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | - |
| datatech.cz | ns1.tele3.cz, ns2.tele3.cz, ns3.tele3.eu | 4 records |
✅ Authoritative Response
Server:81.0.217.111
NS records: ns1.tele3.cz, ns2.tele3.cz, ns3.tele3.eu
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for datatech.cz (unsigned zone)
⏱️ Timing
Total: 4705ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 89.187.135.120 |
| NS | 3 | ns2.tele3.cz, ns3.tele3.eu... |
| MX | 1 | mail.datatech.cz (pri: 1) |
| TXT | 1 | v=spf1 a ip4:89.187.135.120 ip4:89.187.1 |
| SOA | 1 | ns1.tele3.cz root.tele3.cz |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.tele3.cz, ns1.tele3.cz, ns2.tele3.cz...)
Analysis
Hierarchy
mail.datatech.cz is delegated beneath datatech.cz.
IP Addresses
datatech.cz points to a single IP number: 89.187.135.120.
Further host names like clemsa.cz and datatech.dc3.cz overlap in IP numbers with datatech.cz.
Name Servers
The authoritative name servers for datatech.cz are ns1.tele3.cz, ns2.tele3.cz and ns3.tele3.eu — three in total.
ns1.tele3.cz, ns2.tele3.cz and ns3.tele3.eu all resolve to exactly two IP numbers apiece: ns1.tele3.cz → 81.0.217.111 and 2001:1528:123::d01; ns2.tele3.cz → 95.80.251.222 and 2001:4de8:fa71:7e1e::d02; ns3.tele3.eu → 5.9.97.250 and 2a01:4f8:162:24c1::d03.
Mail Servers
datatech.cz has one mail server: mail.datatech.cz.
datatech.cz shares its mail server configuration with other domains such as novosedly.eu, jevisovka.cz and zsnovosedly.cz.
mail.datatech.cz carries two IP numbers: 89.187.149.190 and 2a01:5f0:c001:124:2::e190.