cdev.cz - dns.ninja

cdev.cz

DNSSEC🔒 Signed (DS record present)
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
MXmx.web4u.cz ⭐
A2001:1568::7012🇨🇿 WEB4U2001:1568::/33
PTRmx.web4u.cz
A81.91.87.12🇨🇿 WEB4U81.91.80.0/21
PTRmx.web4u.cz
SOAns.web4u.czadmin@web4u.cz 2026-06-17 #0

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=1784940442

Same first word

cdev.info
cdev.org
cdev.ru
cdev.com
cdev.com.ua
cdev.hu
cdev.pl
cdev.site
cdev.net
cdev.de
cdev.jp
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cdev.ro
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cdev.co
cdev.it
cdev.gc.ca
cdev.global
cdev.mx
cdev.my
cdev.nexus
cdev.ca
cdev.eu
cdev.pro

Similar names

devc.ws
vdec.fr
dcve.com
evdc.cn
devc.bridgestone
vced.com
vdec.nl
decv.co.uk
vdec.com.au
dvec.de
cvde.nl
evdc.it
cvde.com
edvc.be
ecvd.ru
devc.info
vedc.org
edvc.de
decv.nl
dvce.cn
cedv.fr
dvec.ru
devc.de
cevd.com
evcd.de
vedc.com
edcv.net
decv.ru
devc.org
ecvd.com
evdc.info
evcd.com
vedc.com.vn
decv.com
dvec.edu.vn
devc.com
evcd.cn
cdve.cn
edvc.com
ecvd.xyz
cedv.es
edvc.nl
dvce.us
vedc.com.au
edvc.fr
edcv.com.au
vdec.de
edvc.online
cved.ru
vced.org.in
ecdv.nl
vdec.ca
vdec.net
edvc.eu
vcde.kr
edvc.co.at
vecd.com
dcev.ie
vdec.org.ru
devc.me
vdec.com
evdc.eu
edcv.de
dvec.nl
decv.de
cedv.de
ecdv.cz
dvec.ir
evdc.be
vced.org
evdc.org
dcve.nl
edcv.cn
dvec.com
ecdv.cn
dvce.com
evdc.xyz

DNS History

5 records (3 active, 2 former)

20162017201820192020202120222023202420252026NSns.web4u.czns2.web4u.czns1.ignum.comns2.ignum.czMXmx.web4u.cz
●NSns.web4u.cz2020-04-06 → 2026-07-25 · 3 obs
○ 2017-03-14 08:38:16
● 2020-04-06 16:39:10
● 2026-07-25 01:53:34
○NSns1.ignum.com2015-08-09 → 2017-03-14 · 4 obs
● 2015-08-09 07:22:06
● 2017-03-14 08:38:16
○ 2020-04-06 16:39:10
○ 2026-07-25 01:53:34
○NSns2.ignum.cz2015-08-09 → 2017-03-14 · 4 obs
● 2015-08-09 07:22:06
● 2017-03-14 08:38:16
○ 2020-04-06 16:39:10
○ 2026-07-25 01:53:34
●NSns2.web4u.cz2020-04-06 → 2026-07-25 · 3 obs
○ 2017-03-14 08:38:16
● 2020-04-06 16:39:10
● 2026-07-25 01:53:34
●MXmx.web4u.cz2020-04-06 → 2026-07-25 · 2 obs
● 2020-04-06 16:39:10
● 2026-07-25 01:53:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
cdev.czns.web4u.cz, ns2.web4u.cz4 records

✅ Authoritative Response

Server:185.14.224.241

NS records: ns.web4u.cz, ns2.web4u.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1669ms | Queries: -

📄 Records

TypeCountSample Data
NS2ns.web4u.cz, ns2.web4u.cz
MX1mx.web4u.cz (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

Name Servers

cdev.cz uses two name servers for its delegation: ns2.web4u.cz and ns.web4u.cz.

cdev.cz shares its NS records with other domains, for example digitrezor.cz, rsx.cz, nejxml.com and two others.

The two host names ns2.web4u.cz and ns.web4u.cz each have a pair of IP addresses: ns2.web4u.cz has 85.207.53.12 and 2a02:a40:100:28ff::12, and ns.web4u.cz has 185.14.224.241 and 2001:1568:fd::241.

Mail Servers

The sole mail server for cdev.cz is mx.web4u.cz.

Among the domains sharing a mail server setup with cdev.cz are roklen24.com, edebit.cz, hotelandspa.eu and two others.

Some mail servers of cdev.cz are also used by other domains, notably st-automation.cz and bef.cz.

mx.web4u.cz carries two IP numbers: 81.91.87.12 and 2001:1568::7012.