eoi.cz - robtex.com
eoi.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 85.217.171.145🇧🇬 belcloud85.217.171.0/24 | ||||||
| NS | ns2.web4u.cz ⭐ | ||||||
| A | 2a02:a40:100:28ff::12🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s. | ||||||
| PTR | ns2.web4u.cz | ||||||
| A | 85.207.53.12🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block | ||||||
| PTR | ns2.web4u.cz | ||||||
| NS | ns.web4u.cz | ||||||
| A | 2001:1568:fd::241🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | ns.web4u.cz | ||||||
| A | 185.14.224.241🇨🇿 WEB4U185.14.224.0/23 | ||||||
| PTR | ns.web4u.cz | ||||||
| MX | mx1.mailchannels.net ⭐ | ||||||
| A | 54.69.1.140🇺🇸 Amazon54.68.0.0/15 EC2 PDX Prefix | ||||||
| PTR | ec2-54-69-1-140.us-west-2.compute.amazonaws.com | ||||||
| MX | mx2.mailchannels.net ⭐ | ||||||
| A | 18.236.29.166🇺🇸 Amazon18.236.0.0/15 EC2 PDX prefix | ||||||
| PTR | ec2-18-236-29-166.us-west-2.compute.amazonaws.com | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2026-02-24 #8 | ||||||
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=1776010635 | ||||||
Same first word
Similar names
DNS History
20 records (5 active, 15 former)
●NSns.web4u.cz2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 12:38:12
● 2026-04-12 17:02:14
○NSns.wedos.com2021-03-05 → 2021-04-08 · 5 obs
● 2021-03-05 21:44:10
● 2021-04-08 06:13:22
○ 2026-03-26 12:38:12
○ 2026-04-12 17:02:14
○NSns.wedos.cz2021-03-05 → 2021-04-08 · 5 obs
● 2021-03-05 21:44:10
● 2021-04-08 06:13:22
○ 2026-03-26 12:38:12
○ 2026-04-12 17:02:14
○NSns.wedos.eu2021-03-05 → 2021-04-08 · 5 obs
● 2021-03-05 21:44:10
● 2021-04-08 06:13:22
○ 2026-03-26 12:38:12
○ 2026-04-12 17:02:14
○NSns.wedos.net2021-03-05 → 2021-04-08 · 5 obs
● 2021-03-05 21:44:10
● 2021-04-08 06:13:22
○ 2026-03-26 12:38:12
○ 2026-04-12 17:02:14
○NSns1.tele3.cz2015-07-15 → 2015-11-23 · 4 obs
● 2015-11-23 06:58:26
○ 2021-03-05 21:44:10
○ 2026-04-12 17:02:14
○NSns2.tele3.cz2015-07-15 → 2015-11-23 · 4 obs
● 2015-11-23 06:58:26
○ 2021-03-05 21:44:10
○ 2026-04-12 17:02:14
●NSns2.web4u.cz2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 12:38:12
● 2026-04-12 17:02:14
○NSns3.tele3.cz2015-07-15 → 2015-11-23 · 4 obs
● 2015-11-23 06:58:26
○ 2021-03-05 21:44:10
○ 2026-04-12 17:02:14
○NSns4.tele3.eu2015-11-23 → 2015-11-23 · 4 obs
● 2015-11-23 06:58:26
○ 2021-03-05 21:44:10
○ 2026-04-12 17:02:14
○NSns4.tele3.sk2015-07-15 → 2015-07-15 · 3 obs
○ 2015-11-23 06:58:26
○ 2026-04-12 17:02:14
●MXmx1.mailchannels.net2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 12:38:12
● 2026-04-12 17:02:14
●MXmx2.mailchannels.net2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 12:38:12
● 2026-04-12 17:02:14
○MXwes1-mx-backup.wedos.net2021-03-05 → 2021-04-08 · 4 obs
● 2021-04-08 06:13:22
○ 2026-03-26 12:38:12
○ 2026-04-12 17:02:14
○MXwes1-mx1.wedos.net2021-03-05 → 2021-04-08 · 4 obs
● 2021-04-08 06:13:22
○ 2026-03-26 12:38:12
○ 2026-04-12 17:02:14
○MXwes1-mx2.wedos.net2021-03-05 → 2021-04-08 · 4 obs
● 2021-04-08 06:13:22
○ 2026-03-26 12:38:12
○ 2026-04-12 17:02:14
○A2a01:5e0:26::1712015-07-15 → 2015-11-23 · 4 obs
● 2015-11-23 06:58:26
○ 2021-03-05 21:44:10
○ 2026-04-12 17:02:14
●A85.217.171.1452026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 12:38:12
● 2026-04-12 17:02:14
○A88.146.242.1712015-07-15 → 2015-11-23 · 4 obs
● 2015-11-23 06:58:26
○ 2021-03-05 21:44:10
○ 2026-04-12 17:02:14
○A89.221.213.992021-03-05 → 2021-04-08 · 5 obs
● 2021-03-05 21:44:10
● 2021-04-08 06:13:22
○ 2026-03-26 12:38:12
○ 2026-04-12 17:02:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | b.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz | - |
| eoi.cz | ns.web4u.cz, ns2.web4u.cz | 4 records |
✅ Authoritative Response
Server:85.207.53.12
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 884ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 85.217.171.145 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 2 | mx1.mailchannels.net (pri: 10), mx2.mailchannels.net (pri: 10) |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns2.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)
Analysis
IP Addresses
eoi.cz resolves to a single IP address: 85.217.171.145.
Other host names such as ior.cz, mail.ior.cz and www.ccq.cz share IP numbers with eoi.cz.
Name Servers
eoi.cz's delegation uses two name servers, ns2.web4u.cz and ns.web4u.cz.
eoi.cz shares the same name server setup as other domains, for example podnosem.cz, kaminski.cz, sps.cz, jonamedic.cz and snehulaci.cz.
Host names with two IPs:
ns2.web4u.cz points to: 2a02:a40:100:28ff::12 and 85.207.53.12
ns.web4u.cz points to: 2001:1568:fd::241 and 185.14.224.241
Mail Servers
eoi.cz is handled by two mail servers: mx1.mailchannels.net and mx2.mailchannels.net.
eoi.cz shares its mail server setup with other domains, including mooseyard.com, microspinemd.com, stanek.email, benning.design and ingespec.com.
Host names with a single IP:
mx1.mailchannels.net points to 54.69.1.140.
mx2.mailchannels.net points to 18.236.29.166.