cloudsystem.cz - dns.ninja

cloudsystem.cz

DNSSEC🔒 Signed (DS record present)
A2a01:430:43::130🇨🇿 MASTER-AS2a01:430::/32 MASTER-IPV6-1-MAI-CZ
PTRcharon.tele3.cz
A81.31.35.130🇨🇿 MASTER-AS81.31.32.0/20 MASTER-NET-1
NSns1.tele3.cz ⭐
A2001:1528:123::d01🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network
A81.0.217.111🇨🇿 CASABLANCA-AS81.0.217.0/24 Casablanca INT
NSns2.tele3.cz
A2001:4de8:fa71:7e1e::d02🇨🇿 QUANTCOM-AS2001:4de8::/32 Dial Telecom, a.s.
PTRns2.tele3.cz
A95.80.251.222🇨🇿 QUANTCOM-AS95.80.192.0/18 Dial Telecom, a.s.
PTRns2.tele3.cz
NSns3.tele3.eu
A2a01:4f8:162:24c1::d03🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRns3.tele3.eu
A5.9.97.250🇩🇪 Hetzner5.9.0.0/16 HETZNER-RZ-FKS-BLK5
PTRns3.tele3.eu
MXredmail.cloudsystem.cz ⭐
A88.146.242.176🇨🇿 VODAFONE-CZ-AS88.146.192.0/18 Vodafone Czech Republic a.s.
SOAns1.tele3.czroot@tele3.cz serial=1781590272

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=1785206841

Subdomains

redmail.cloudsystem.cz
www.cloudsystem.cz
mail.cloudsystem.cz

Same first word

cloudsystem.cz
cloudsystem.it
cloudsystem.xyz
cloudsystem.nl
cloudsystem.net
cloudsystem.com.cn
cloudsystem.biz
cloudsystem.eu
cloudsystem.co
cloudsystem.kz
cloudsystem.de
cloudsystem.email
cloudsystem.cn
cloudsystem.ru
cloudsystem.fr
cloudsystem.pro
cloudsystem.ca
cloudsystem.com.qa
cloudsystem.com

Similar names

systemcloud.eu
tomdussycle.blogspot.com
systemcloud.co.uk
systemcloud.com
systemcloud.org
systemcloud.com.br
cloudystems.xyz
systemcloud.de
systemcloud.it

DNS History

14 records (6 active, 8 former)

20162017201820192020202120222023202420252026NSns1.tele3.czns2.tele3.czns3.tele3.euns3.tele3.czns4.tele3.euns4.tele3.skns4.tele3.usMXredmail.cloudsystem.czblackcat.tele3.czmail.dc3.czA2a01:430:43::13081.31.35.1302001:1528:123:123::11281.0.217.112
●NSns1.tele3.cz2015-08-19 → 2026-07-28 · 2 obs
● 2015-08-19 11:04:32
● 2026-07-28 03:41:02
●NSns2.tele3.cz2015-08-19 → 2026-07-28 · 2 obs
● 2015-08-19 11:04:32
● 2026-07-28 03:41:02
○NSns3.tele3.cz2015-08-19 → 2017-01-07 · 4 obs
● 2015-08-19 11:04:32
● 2017-01-07 06:55:50
○ 2018-04-17 10:17:32
○ 2026-07-28 03:41:02
●NSns3.tele3.eu2018-04-17 → 2026-07-28 · 3 obs
○ 2017-01-07 06:55:50
● 2018-04-17 10:17:32
● 2026-07-28 03:41:02
○NSns4.tele3.eu2015-12-08 → 2017-01-07 · 5 obs
○ 2015-08-19 11:04:32
● 2015-12-08 07:15:48
● 2017-01-07 06:55:50
○ 2018-04-17 10:17:32
○ 2026-07-28 03:41:02
○NSns4.tele3.sk2015-08-19 → 2015-08-19 · 3 obs
● 2015-08-19 11:04:32
○ 2015-12-08 07:15:48
○ 2026-07-28 03:41:02
○NSns4.tele3.us2018-04-17 → 2018-08-24 · 5 obs
○ 2017-01-07 06:55:50
● 2018-04-17 10:17:32
● 2018-08-24 06:09:52
○ 2026-02-15 19:59:06
○ 2026-07-28 03:41:02
○MXblackcat.tele3.cz2015-08-19 → 2018-08-24 · 4 obs
● 2015-08-19 11:04:32
● 2018-08-24 06:09:52
○ 2026-02-15 19:59:06
○ 2026-07-28 03:41:02
○MXmail.dc3.cz2015-08-19 → 2018-08-24 · 4 obs
● 2015-08-19 11:04:32
● 2018-08-24 06:09:52
○ 2026-02-15 19:59:06
○ 2026-07-28 03:41:02
●MXredmail.cloudsystem.cz2026-02-15 → 2026-07-28 · 5 obs
○ 2018-08-24 06:09:52
● 2026-02-15 19:59:06
○ 2026-07-14 16:57:46
● 2026-07-24 03:21:22
● 2026-07-28 03:41:02
○A2001:1528:123:123::1122015-08-19 → 2018-08-24 · 4 obs
● 2015-08-19 11:04:32
● 2018-08-24 06:09:52
○ 2026-02-15 19:59:06
○ 2026-07-28 03:41:02
●A2a01:430:43::1302026-02-15 → 2026-07-28 · 5 obs
○ 2018-08-24 06:09:52
● 2026-02-15 19:59:06
○ 2026-07-14 16:57:46
● 2026-07-24 03:21:22
● 2026-07-28 03:41:02
○A81.0.217.1122015-08-19 → 2018-08-24 · 4 obs
● 2015-08-19 11:04:32
● 2018-08-24 06:09:52
○ 2026-02-15 19:59:06
○ 2026-07-28 03:41:02
●A81.31.35.1302026-02-15 → 2026-07-28 · 5 obs
○ 2018-08-24 06:09:52
● 2026-02-15 19:59:06
○ 2026-07-14 16:57:46
● 2026-07-24 03:21:22
● 2026-07-28 03:41:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz-
cloudsystem.czns1.tele3.cz, ns2.tele3.cz, ns3.tele3.eu4 records

✅ Authoritative Response

Server:5.9.97.250

NS records: ns1.tele3.cz, ns2.tele3.cz, ns3.tele3.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1337ms | Queries: -

📄 Records

TypeCountSample Data
A181.31.35.130
AAAA12a01:430:43::130
NS3ns2.tele3.cz, ns1.tele3.cz...
MX1redmail.cloudsystem.cz (pri: 10)
SOA1ns1.tele3.cz root.tele3.cz

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.tele3.cz, ns2.tele3.cz, ns1.tele3.cz...)

Analysis

Hierarchy

redmail.cloudsystem.cz, www.cloudsystem.cz and mail.cloudsystem.cz each fall under the parent domain cloudsystem.cz.

IP Addresses

cloudsystem.cz directs to two IP numbers, 81.31.35.130 and 2a01:430:43::130

Two other host names, along with centros.cz, handy-car.eu and budejovice.net, also share IP numbers with cloudsystem.cz.

Name Servers

The authoritative name servers for cloudsystem.cz are ns1.tele3.cz, ns2.tele3.cz and ns3.tele3.eu — three in total.

cloudsystem.cz partially shares its NS delegation with several other domains, including ivy.cz, feso.cz, vase4.cz and two others.

These name servers often co-occur with the name servers ns4.tele3.us.

ns1.tele3.cz, ns2.tele3.cz and ns3.tele3.eu all resolve to exactly two IP numbers apiece: ns1.tele3.cz → 81.0.217.111 and 2001:1528:123::d01; ns2.tele3.cz → 95.80.251.222 and 2001:4de8:fa71:7e1e::d02; ns3.tele3.eu → 5.9.97.250 and 2a01:4f8:162:24c1::d03.

Mail Servers

The sole mail server for cloudsystem.cz is redmail.cloudsystem.cz.

Among the domains sharing a mail server setup with cloudsystem.cz are google-apps.cz, krep.cz, rivercityprague.cz and two others.

There is at least a partial MX overlap between cloudsystem.cz and other domains, including jakubstary.cz, impasto.cz, laskavapujcka.cz and two others.

redmail.cloudsystem.cz directs to just one IP number, 88.146.242.176.