onecode.cz - robtex.com
onecode.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 37.9.175.163🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24 | ||||||
| PTR | ing.r3.websupport.sk | ||||||
| NS | ns1.websupport.cz ⭐ | ||||||
| A | 2a10:bbc0::11🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns1.websupport.eu | ||||||
| A | 45.10.97.11🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| PTR | ns1.websupport.eu | ||||||
| NS | ns2.websupport.cz | ||||||
| A | 2a02:250:3::12🇸🇪 ACTIVE24-AS2a02:250:3::/48 | ||||||
| PTR | ns2.websupport.eu | ||||||
| A | 185.71.159.12🇸🇪 ACTIVE24-AS185.71.159.0/24 | ||||||
| PTR | ns2.websupport.eu | ||||||
| NS | ns3.websupport.eu | ||||||
| A | 2a10:bbc0::13🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns3.websupport.eu | ||||||
| A | 45.10.97.13🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| PTR | ns3.websupport.eu | ||||||
| SOA | ns1.websupport.czadmin@websupport.sk serial=1783156290 | ||||||
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=1783946858 | ||||||
Subdomains
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
○NSalfa.ns.active24.cz2015-08-19 → 2017-03-23 · 4 obs
● 2017-03-23 11:52:14
○ 2026-04-23 17:33:32
○ 2026-07-13 13:37:04
○NSbeta.ns.active24.cz2015-08-19 → 2017-03-23 · 4 obs
● 2017-03-23 11:52:14
○ 2026-04-23 17:33:32
○ 2026-07-13 13:37:04
○NSgama.ns.active24.sk2015-08-19 → 2017-03-23 · 4 obs
● 2017-03-23 11:52:14
○ 2026-04-23 17:33:32
○ 2026-07-13 13:37:04
●NSns1.websupport.cz2026-04-23 → 2026-07-13 · 3 obs
● 2026-04-23 17:33:32
● 2026-07-13 13:37:04
●NSns2.websupport.cz2026-04-23 → 2026-07-13 · 3 obs
● 2026-04-23 17:33:32
● 2026-07-13 13:37:04
●NSns3.websupport.eu2026-04-23 → 2026-07-13 · 3 obs
● 2026-04-23 17:33:32
● 2026-07-13 13:37:04
○MXsmtp.spytech.cz2015-08-19 → 2017-03-23 · 4 obs
● 2017-03-23 11:52:14
○ 2026-04-23 17:33:32
○ 2026-07-13 13:37:04
●A37.9.175.1632026-04-23 → 2026-07-13 · 3 obs
● 2026-04-23 17:33:32
● 2026-07-13 13:37:04
○A82.208.41.182015-08-19 → 2017-03-23 · 4 obs
● 2017-03-23 11:52:14
○ 2026-04-23 17:33:32
○ 2026-07-13 13:37:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz | - |
| onecode.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: 860ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.163 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| SOA | 1 | ns1.websupport.cz admin.websupport.sk |
Analysis
Hierarchy
onecode.cz is the parent domain of smtp.onecode.cz and mail.onecode.cz.
IP Addresses
onecode.cz points to a single IP number: 37.9.175.163.
Additional host names — www.birne.de, kweeg.prostrih.cz, pectol.cz and two others — share IP numbers with onecode.cz.
Name Servers
The authoritative name servers for onecode.cz are ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu — three in total.
There is at least partial name server overlap between onecode.cz and other domains — bezva.org, infosec.cz, kancelarskysvet.cz and two more among them.
ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu all resolve to exactly two IP numbers apiece: ns1.websupport.cz → 45.10.97.11 and 2a10:bbc0::11; ns2.websupport.cz → 185.71.159.12 and 2a02:250:3::12; ns3.websupport.eu → 45.10.97.13 and 2a10:bbc0::13.