4ec.cz - robtex.com

4ec.cz

DNSSEC⚠️ Not signed
A2a00:1ed0:45::15🇨🇿 VSHOSTING2a00:1ed0::/32
PTRhyperion.blueboard.cz
NSshinzon.blueboard.cz ⭐
A2a00:1ed0:45::b🇨🇿 VSHOSTING2a00:1ed0::/32
PTRshinzon.blueboard.cz
A178.251.187.7🇨🇿 VSHOSTING178.251.184.0/21
PTRshinzon.blueboard.cz
NSjaguar.blueboard.cz ⚠️ Not in zone NS records
A2a00:1ed0:45::c🇨🇿 VSHOSTING2a00:1ed0::/32
PTRjaguar.blueboard.cz
A178.251.187.8🇨🇿 VSHOSTING178.251.184.0/21
PTRjaguar.blueboard.cz
NSns2.blueboard.cz
A2a01:4f8:13b:8d4::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
A195.201.57.122🇩🇪 Hetzner195.201.0.0/16 HETZNER-DC
PTRns2.blueboard.cz
MXjaguar.blueboard.cz ⭐
A2a00:1ed0:45::c🇨🇿 VSHOSTING2a00:1ed0::/32
PTRjaguar.blueboard.cz
A178.251.187.8🇨🇿 VSHOSTING178.251.184.0/21
PTRjaguar.blueboard.cz
TXTv=spf1 a mx include:spf.blueboard.cz -all
SOAshinzon.blueboard.czhostmaster@blueboard.cz 2022-06-15 #75

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=1774631837

Same first word

4ec.org
4ec.de
4ec.us
4ec.nl
4ec.net
4ec.net.au
4ec.ir
4ec.com
4ec.eu
4ec.biz
4ec.cz

Similar names

c4e.at
e4c.in
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c4e.com.tw
e4c.de
4ce.hu
e4c.nl
ec4.cc
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ce4.org
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4ce.in
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4ce.com
ce4.cn
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e4c.ru
e4c.fr
4ce.org
c4e.us
4ce.ca
c4e.cz
e4c.me
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4ce.asso.fr
ec4.me
ec4.city
e4c.sakura.ne.jp
c4e.io
e4c.azurewebsites.net
ec4.tech
c4e.in
4ce.us
e4c.ca
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4ce.ru
c4e.cn
c4e.org
c4e.co.uk
e4c.io
c4e.org.cy
c4e.ca
ec4.de
4ce.cn
4ce.de
4ce.co.uk
c4e.eu
ec4.ru
ec4.com
c4e.mobi
c4e.com
c4e.fr
ec4.mx

DNS History

11 records (5 active, 6 former)

20162017201820192020202120222023202420252026NSjaguar.blueboard.czns2.blueboard.czshinzon.blueboard.czserver.4eg.czMXjaguar.blueboard.czns2.blueboard.czserver.4eg.czA2a00:1ed0:45::15109.123.222.1812001:1528:240::29217.11.249.145
●NSjaguar.blueboard.cz2026-03-27 → 2026-03-27 · 3 obs
○ 2016-12-23 16:27:18
● 2026-03-27 09:24:28
● 2026-03-27 17:47:28
●NSns2.blueboard.cz2015-07-14 → 2026-03-27 · 2 obs
● 2015-07-14 07:29:04
● 2026-03-27 17:47:28
○NSserver.4eg.cz2016-12-23 → 2016-12-23 · 4 obs
○ 2016-09-26 22:47:20
● 2016-12-23 16:27:18
○ 2026-03-27 09:24:28
○ 2026-03-27 17:47:28
●NSshinzon.blueboard.cz2015-07-14 → 2026-03-27 · 5 obs
● 2015-07-14 07:29:04
● 2016-09-26 22:47:20
○ 2016-12-23 16:27:18
● 2026-03-27 09:24:28
● 2026-03-27 17:47:28
●MXjaguar.blueboard.cz2015-07-14 → 2026-03-27 · 5 obs
● 2015-07-14 07:29:04
● 2016-09-26 22:47:20
○ 2016-12-23 16:27:18
● 2026-03-27 09:24:28
● 2026-03-27 17:47:28
○MXns2.blueboard.cz2015-07-14 → 2016-09-26 · 4 obs
● 2015-07-14 07:29:04
● 2016-09-26 22:47:20
○ 2016-12-23 16:27:18
○ 2026-03-27 17:47:28
○MXserver.4eg.cz2016-12-23 → 2016-12-23 · 4 obs
○ 2016-09-26 22:47:20
● 2016-12-23 16:27:18
○ 2026-03-27 09:24:28
○ 2026-03-27 17:47:28
○A109.123.222.1812016-12-23 → 2016-12-23 · 4 obs
○ 2016-09-26 22:47:20
● 2016-12-23 16:27:18
○ 2026-03-27 09:24:28
○ 2026-03-27 17:47:28
○A2001:1528:240::292015-07-14 → 2016-09-26 · 4 obs
● 2015-07-14 07:29:04
● 2016-09-26 22:47:20
○ 2016-12-23 16:27:18
○ 2026-03-27 17:47:28
○A217.11.249.1452015-07-14 → 2016-09-26 · 4 obs
● 2015-07-14 07:29:04
● 2016-09-26 22:47:20
○ 2016-12-23 16:27:18
○ 2026-03-27 17:47:28
●A2a00:1ed0:45::152026-03-27 → 2026-03-27 · 3 obs
○ 2016-12-23 16:27:18
● 2026-03-27 09:24:28
● 2026-03-27 17:47:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
czd.ns.nic.cz, c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz-
4ec.czns2.blueboard.cz, jaguar.blueboard.cz, shinzon.blueboard.cz3 records

✅ Authoritative Response

Server:195.201.57.122

NS records: ns2.blueboard.cz, jaguar.blueboard.cz, shinzon.blueboard.cz

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

No DNSKEY for 4ec.cz

⏱️ Timing

Total: 729ms | Queries: -

📄 Records

TypeCountSample Data
A1178.251.187.9
NS2ns2.blueboard.cz, shinzon.blueboard.cz
MX1jaguar.blueboard.cz (pri: 10)
TXT1v=spf1 a mx include:spf.blueboard.cz -al
SOA1shinzon.blueboard.cz hostmaster.blueboar

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns2.blueboard.cz, jaguar.blueboard.cz, shinzon.blueboard.cz)

Analysis

IP Addresses

4ec.cz resolves to a single IP address: 2a00:1ed0:45::15.

Other host names including finacnisluzby.cz, vemap.cz, sokol-sporilov.cz, iracingnews.cz and pixy.cz share IP numbers with 4ec.cz.

Name Servers

4ec.cz is delegated to three name servers: jaguar.blueboard.cz, ns2.blueboard.cz and shinzon.blueboard.cz.

4ec.cz at least partially shares name servers with other domains, including blue-gas.cz, b2btomgast.cz, ordinacebrno.cz, trebicnow.cz and zobraz.eu.

Host names with two IP numbers:

jaguar.blueboard.cz points to: 2a00:1ed0:45::c and 178.251.187.8

ns2.blueboard.cz points to: 2a01:4f8:13b:8d4::2 and 195.201.57.122

shinzon.blueboard.cz points to: 2a00:1ed0:45::b and 178.251.187.7

Mail Servers

4ec.cz is handled by a single mail server, jaguar.blueboard.cz.

4ec.cz shares its mail server setup with other domains, including thinkmag.cz, patizon.com, jaguar.blueboard.cz, frenkee.com and ulaury.cz.

The mail servers for 4ec.cz are shared with other domains, for instance webr.cz, kopeckostek.cz, exehockey.sk, eida.cz and hrnecek.cz.