ctibor.cz - robtex.com
ctibor.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 217.16.180.190🇨🇿 VSHOSTING217.16.176.0/20 III. | ||||||
| PTR | unassigned-ip.vshosting.cz | ||||||
| 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 | ||||||
| MX | mail.z-c-h.cz ⭐ | ||||||
| MX | email.exchange4u.cz(20) | ||||||
| A | 188.75.144.103🇨🇿 AS-JONCZ188.75.128.0/18 JON.CZ IPv4 Network | ||||||
| PTR | 103-144-75-188.jon.cz | ||||||
| SOA | ns1.websupport.czadmin@websupport.cz serial=1717160375 | ||||||
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=1776964633 | ||||||
Same first word
Similar names
DNS History
10 records (6 active, 4 former)
○NSalfa.ns.active24.cz2015-07-17 → 2020-01-16 · 4 obs
● 2020-01-16 04:20:54
○ 2026-03-26 15:26:32
○ 2026-04-23 17:30:04
○NSbeta.ns.active24.cz2015-07-17 → 2020-01-16 · 4 obs
● 2020-01-16 04:20:54
○ 2026-03-26 15:26:32
○ 2026-04-23 17:30:04
○NSgama.ns.active24.sk2015-07-17 → 2020-01-16 · 4 obs
● 2020-01-16 04:20:54
○ 2026-03-26 15:26:32
○ 2026-04-23 17:30:04
●NSns1.websupport.cz2026-03-26 → 2026-04-23 · 3 obs
● 2026-03-26 15:26:32
● 2026-04-23 17:30:04
●NSns2.websupport.cz2026-03-26 → 2026-04-23 · 3 obs
● 2026-03-26 15:26:32
● 2026-04-23 17:30:04
●NSns3.websupport.eu2026-03-26 → 2026-04-23 · 3 obs
● 2026-03-26 15:26:32
● 2026-04-23 17:30:04
●MXemail.exchange4u.cz2016-02-11 → 2026-04-23 · 2 obs
● 2026-04-23 17:30:04
●A217.16.180.1902016-02-11 → 2026-04-23 · 3 obs
● 2016-02-11 16:55:08
● 2026-04-23 17:30:04
○A88.86.110.1612015-07-17 → 2015-11-19 · 4 obs
● 2015-11-19 13:52:12
○ 2016-02-11 16:55:08
○ 2026-04-23 17:30:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| ctibor.cz | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server:45.10.97.11
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: 2044ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.16.180.190 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 2 | mail.z-c-h.cz (pri: 10), email.exchange4u.cz (pri: 20) |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
Analysis
IP Addresses
ctibor.cz points to an IP address: 217.16.180.190.
Name Servers
ctibor.cz is delegated to three name servers ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
ctibor.cz at least partially shares name servers with other domains, for instance visualgeomatics.net, racingolesna.cz, eko-kotle.cz, svozka.cz and str-bikes.cz.
These name servers are commonly used alongside ns1.websupport.sk, ns2.websupport.sk and ns3.websupport.sk.
Host names with two IP numbers:
ns1.websupport.cz points to 2a10:bbc0::11 and 45.10.97.11; ns2.websupport.cz points to 2a02:250:3::12 and 185.71.159.12; ns3.websupport.eu points to 2a10:bbc0::13 and 45.10.97.13.
Mail Servers
ctibor.cz is handled by two mail servers: email.exchange4u.cz and mail.z-c-h.cz.
ctibor.cz shares some mail servers with other domains, including postres.cz, masinda.cz, channelpartners.cz and s60.cz.
these mail servers are commonly used alongside postres-cz.mail.protection.outlook.com and weber11.gripon.cz.
Host names with a single IP address: email.exchange4u.cz points to 188.75.144.103.