dev.cz - robtex.com
dev.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=1778370434 | ||||||
Same first word
Similar names
DNS History
7 records (6 active, 1 former)
●NSalfa.ns.active24.cz2008-10-13 → 2026-05-10 · 2 obs
● 2026-05-10 00:22:52
●NSbeta.ns.active24.cz2008-10-13 → 2026-05-10 · 2 obs
● 2026-05-10 00:22:52
●NSgama.ns.active24.sk2015-08-07 → 2026-05-10 · 3 obs
● 2015-08-07 18:57:04
● 2026-05-10 00:22:52
●MXgw.mediafactory.cz2008-10-13 → 2026-05-10 · 2 obs
● 2026-05-10 00:22:52
○MXmx.smtp.cz2008-10-13 → 2017-05-25 · 4 obs
● 2017-05-25 15:26:04
○ 2020-12-04 02:07:36
○ 2026-05-10 00:22:52
●MXmx2.active24.com2020-12-04 → 2026-05-10 · 3 obs
● 2020-12-04 02:07:36
● 2026-05-10 00:22:52
●A88.208.100.2082008-10-13 → 2026-05-10 · 2 obs
● 2026-05-10 00:22:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | c.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz | - |
| dev.cz | alfa.ns.active24.cz, beta.ns.active24.cz, gama.ns.active24.sk | 4 records |
✅ Authoritative Response
Server:185.71.158.30
NS records: alfa.ns.active24.cz, beta.ns.active24.cz, gama.ns.active24.sk
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1058ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 88.208.100.208 |
| NS | 3 | alfa.ns.active24.cz, beta.ns.active24.cz... |
| MX | 2 | gw.mediafactory.cz (pri: 10), mx2.active24.com (pri: 20) |
| TXT | 1 | v=spf1 ip4:88.208.100.208 ip4:88.208.100 |
| SOA | 1 | alfa.ns.active24.cz hostmaster.active24. |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (alfa.ns.active24.cz, beta.ns.active24.cz, alfa.ns.active24.cz...)
Analysis
IP Addresses
dev.cz resolves to one IP number: 88.208.100.208.
Name Servers
dev.cz is delegated to three name servers alfa.ns.active24.cz, beta.ns.active24.cz and gama.ns.active24.sk.
dev.cz at least partially shares name servers with other domains, for instance cmart.cz, sysware.cz, kon-takt.cz, mtc-stav.cz and navrkal.cz.
These name servers are commonly used alongside ns.dns4.cz and ns.servery.cz.
Host names with two IP numbers:
alfa.ns.active24.cz points to: 2a02:4a8:ac24:100::96:2 and 81.95.96.2.
beta.ns.active24.cz points to: 2a00:4b40:1000:590:185:111:90:94 and 185.111.90.94.
gama.ns.active24.sk points to: 2a00:1968:0:1002:185:71:158:30 and 185.71.158.30.
Mail Servers
Two mail servers handle dev.cz: mx2.active24.com and gw.mediafactory.cz.
dev.cz shares its mail server setup with other domains, including media-factory.cz and mediafactory.eu.
dev.cz shares some mail servers with other domains, at least partially, for instance oblaca.cz, rivella.cz, renomont.cz, interdoor.org and jogosdecasinoonlinebrasil.com.br.
these mail servers are commonly used with the mail servers mx1.active24.com.
Two IP numbers for a host: mx2.active24.com points to 2a00:4b40:1000:590:185:111:90:93 and 185.111.90.93.
One IP number for a host: gw.mediafactory.cz points to 213.151.83.254.