cihc.cz - robtex.com
cihc.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=1784902643 | ||||||
Same first word
Similar names
DNS History
12 records (7 active, 5 former)
○NSns.endora.cz2018-11-26 → 2018-11-26 · 3 obs
○ 2026-06-10 16:48:14
○ 2026-07-24 14:54:04
○NSns.endoraland.com2018-11-26 → 2018-11-26 · 3 obs
○ 2026-06-10 16:48:14
○ 2026-07-24 14:54:04
●NSns1.websupport.cz2026-06-10 → 2026-07-24 · 3 obs
● 2026-06-10 16:48:14
● 2026-07-24 14:54:04
●NSns2.websupport.cz2026-06-10 → 2026-07-24 · 3 obs
● 2026-06-10 16:48:14
● 2026-07-24 14:54:04
●NSns3.websupport.eu2026-06-10 → 2026-07-24 · 3 obs
● 2026-06-10 16:48:14
● 2026-07-24 14:54:04
●MXmx10.active24.cz2026-06-10 → 2026-07-24 · 3 obs
● 2026-06-10 16:48:14
● 2026-07-24 14:54:04
○MXmx2.endora.cz2018-11-26 → 2018-11-26 · 3 obs
○ 2026-06-10 16:48:14
○ 2026-07-24 14:54:04
●MXmx20.active24.cz2026-06-10 → 2026-07-24 · 3 obs
● 2026-06-10 16:48:14
● 2026-07-24 14:54:04
●A2a00:4b40:aaaa:2005::72026-06-10 → 2026-07-24 · 3 obs
● 2026-06-10 16:48:14
● 2026-07-24 14:54:04
○A2a01:28:ca:63:121:3::2018-11-26 → 2018-11-26 · 3 obs
○ 2026-06-10 16:48:14
○ 2026-07-24 14:54:04
●A37.9.175.1632026-06-10 → 2026-07-24 · 3 obs
● 2026-06-10 16:48:14
● 2026-07-24 14:54:04
○A88.86.121.32018-11-26 → 2018-11-26 · 3 obs
○ 2026-06-10 16:48:14
○ 2026-07-24 14:54:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | 8 records |
| cihc.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: 3106ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.163 |
| AAAA | 1 | 2a00:4b40:aaaa:2005::7 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 2 | mx10.active24.cz (pri: 10), mx20.active24.cz (pri: 100) |
| TXT | 2 | v=spf1 a mx include:_spf.websupport.cz ?, spf2.0/pra a mx include:_sid.websupport. |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz...)
Analysis
IP Addresses
cihc.cz directs to two IP numbers, 37.9.175.163 and 2a00:4b40:aaaa:2005::7
ssit.cz, www.palivobt.cz, cz.divida.cz plus two other host names have IP numbers in common with cihc.cz.
Name Servers
cihc.cz is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
cihc.cz has at least partial name server overlap with other domains, such as originopenregister.com, ufl.cz, crmi.cz and two others.
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
cihc.cz uses two mail servers, mx10.active24.cz and mx20.active24.cz.
The mail server setup of cihc.cz matches that of other domains such as spokojeny-mazlicek.cz, stojan.eu, baracademy.cz and two others.
mx10.active24.cz and mx20.active24.cz each resolve to two IP addresses: mx10.active24.cz points to 45.13.137.85 and 2a00:4b40:aaaa:2101:45:13:137:85, while mx20.active24.cz points to 45.13.137.86 and 2a00:4b40:aaaa:2101:45:13:137:86.