ior.cz - robtex.com

ior.cz

DNSSEC🔒 Signed (DS record present)
A85.217.171.145🇧🇬 belcloud85.217.171.0/24
NSns2.web4u.cz ⭐
A2a02:a40:100:28ff::12🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s.
PTRns2.web4u.cz
A85.207.53.12🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block
PTRns2.web4u.cz
NSns.web4u.cz
A2001:1568:fd::241🇨🇿 WEB4U2001:1568::/33
PTRns.web4u.cz
A185.14.224.241🇨🇿 WEB4U185.14.224.0/23
PTRns.web4u.cz
MXmx1.mailchannels.net ⭐
A18.236.29.166🇺🇸 Amazon18.236.0.0/15 EC2 PDX prefix
PTRec2-18-236-29-166.us-west-2.compute.amazonaws.com
MXmx2.mailchannels.net ⭐
A18.236.29.166🇺🇸 Amazon18.236.0.0/15 EC2 PDX prefix
PTRec2-18-236-29-166.us-west-2.compute.amazonaws.com
SOAns.web4u.czadmin@web4u.cz 2026-02-24 #8

cz

DNSSEC🔒 Signed (DS record present)
NSa.ns.nic.cz ⭐
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz
SOAa.ns.nic.czhostmaster@nic.cz serial=1775996234

Subdomains

mail.ior.cz

Same first word

ior.cz
ior.kr
ior.org
ior.ca
ior.co.uk
ior.org.uk
ior.com.au
ior.info
ior.net
ior.co
ior.no
ior.ad
ior.bialystok.pl
ior.va
ior.de
ior.be
ior.ch
ior.pl
ior.com.br
ior.at
ior.ro
ior.poznan.pl
ior.it
ior.co.th
ior.mobi
ior.dk
ior.ru
ior.org.cn
ior.com.hk
ior.agro.pl
ior.com
ior.se
ior.sk
ior.hu
ior.co.in
ior.nl

Similar names

iro.at
ori.com.br
oir.ru
rio.life
ori.kiev.ua
rio.team
roi.li
oir.at
ori.nic.in
ori.co.uk
rio.net
rio.su
iro.mobi
rio.company
rio.archi
ori.de
rio.ua
oir.de
rio.edu.vn
oir.cn
roi.eu
rio.com.au
ori.com.ua
oir.in
oir.com.mx
iro.be
iro.cl
roi.limited
ori.se
rio.lv
roi.ru
ori.fi
roi.se
ori.pp.ua
oir.by
iro.se
iro.to
rio.in.ua
iro.co
rio.co.jp
iro.com
ori.ac
roi.exchange
roi.ch
rio.chat
ori.kz
rio.systems
iro.st
rio.es
ori.kasserver.com
ori.kr
rio.no
rio.agency
ori.in
rio.movie
ori.xen.prgmr.com
ori.sk
oir.com.br
roi.net
oir.fr
iro.de
ori.us
rio.academy
roi.fm
roi.ro
iro.gr
rio.be
rio.com.tw
ori.lt
roi.co.id
iro.nl
roi.com.mx
rio.ne.jp
ori.bg
rio.fr
ori.wedding
rio.ws
ori.by
roi.do
rio.viajes
rio.br
ori.no
oir.co
rio.ventures
oir.ie
roi.hk
oir.qld.gov.au
rio.edu

DNS History

12 records (5 active, 7 former)

20162017201820192020202120222023202420252026NSns.web4u.czns2.web4u.czns.gransy.comns2.gransy.comns3.gransy.comns4.gransy.comns5.gransy.comMXmx1.mailchannels.netmx2.mailchannels.netmail.ior.czA85.217.171.14577.78.104.3
○NSns.gransy.com2015-08-17 → 2021-10-06 · 4 obs
● 2015-08-17 09:18:54
● 2021-10-06 00:48:42
○ 2026-03-26 10:21:22
○ 2026-04-12 13:10:50
●NSns.web4u.cz2026-03-26 → 2026-04-12 · 3 obs
○ 2021-10-06 00:48:42
● 2026-03-26 10:21:22
● 2026-04-12 13:10:50
○NSns2.gransy.com2015-08-17 → 2021-10-06 · 4 obs
● 2015-08-17 09:18:54
● 2021-10-06 00:48:42
○ 2026-03-26 10:21:22
○ 2026-04-12 13:10:50
●NSns2.web4u.cz2026-03-26 → 2026-04-12 · 3 obs
○ 2021-10-06 00:48:42
● 2026-03-26 10:21:22
● 2026-04-12 13:10:50
○NSns3.gransy.com2015-08-17 → 2021-10-06 · 4 obs
● 2015-08-17 09:18:54
● 2021-10-06 00:48:42
○ 2026-03-26 10:21:22
○ 2026-04-12 13:10:50
○NSns4.gransy.com2015-08-17 → 2021-10-06 · 4 obs
● 2015-08-17 09:18:54
● 2021-10-06 00:48:42
○ 2026-03-26 10:21:22
○ 2026-04-12 13:10:50
○NSns5.gransy.com2015-08-17 → 2021-10-06 · 4 obs
● 2015-08-17 09:18:54
● 2021-10-06 00:48:42
○ 2026-03-26 10:21:22
○ 2026-04-12 13:10:50
○MXmail.ior.cz2015-08-17 → 2021-10-06 · 4 obs
● 2015-08-17 09:18:54
● 2021-10-06 00:48:42
○ 2026-03-26 10:21:22
○ 2026-04-12 13:10:50
●MXmx1.mailchannels.net2026-03-26 → 2026-04-12 · 3 obs
○ 2021-10-06 00:48:42
● 2026-03-26 10:21:22
● 2026-04-12 13:10:50
●MXmx2.mailchannels.net2026-03-26 → 2026-04-12 · 3 obs
○ 2021-10-06 00:48:42
● 2026-03-26 10:21:22
● 2026-04-12 13:10:50
○A77.78.104.32015-08-17 → 2021-10-06 · 4 obs
● 2015-08-17 09:18:54
● 2021-10-06 00:48:42
○ 2026-03-26 10:21:22
○ 2026-04-12 13:10:50
●A85.217.171.1452026-03-26 → 2026-04-12 · 3 obs
○ 2021-10-06 00:48:42
● 2026-03-26 10:21:22
● 2026-04-12 13:10:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
ior.czns.web4u.cz, ns2.web4u.cz4 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: 1080ms | Queries: -

📄 Records

TypeCountSample Data
A185.217.171.145
NS2ns.web4u.cz, ns2.web4u.cz
MX2mx1.mailchannels.net (pri: 10), mx2.mailchannels.net (pri: 10)
SOA1ns.web4u.cz admin.web4u.cz

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)

Analysis

Hierarchy

The parent of mail.ior.cz is ior.cz.

IP Addresses

ior.cz points to IP number: 85.217.171.145.

Other host names such as mail.ior.cz, www.ccq.cz and eoi.cz share IP numbers with ior.cz.

Name Servers

ior.cz is delegated to two name servers: ns2.web4u.cz and ns.web4u.cz.

ior.cz shares the same name server setup as sfcopava.com, rwbase.cz, splatkovy-kalendar.cz, narex.nl and hotelstekl.cz.

Host names with two IP numbers: 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

ior.cz is handled by two mail servers: mx1.mailchannels.net and mx2.mailchannels.net.

The mail server setup for ior.cz matches that of other domains, for instance kodetop.com, smokeyoaks.com, gasscompany.com, careydavidson.com and mainstreetwarnerinc.org.

ior.cz shares some mail servers with other domains, at least in part, for instance ejeschokladfabrik.se.

Host names sharing one IP: mx1.mailchannels.net and mx2.mailchannels.net point to 18.236.29.166.