tchas.cz - robtex.com

tchas.cz

DNSSEC🔒 Signed (DS record present)
A2001:4de8:fa71:7e1e::f053🇨🇿 QUANTCOM-AS2001:4de8::/32 Dial Telecom, a.s.
PTRwhitefox.hosting4u.cz
A89.235.1.53🇨🇿 QUANTCOM-AS89.235.0.0/18 Dial Telecom, a.s.
NSns1.tele3.cz ⭐
A2001:1528:123::d01🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network
PTRns1.tele3.cz
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
MXmail.dc3.cz ⭐
A81.0.217.5🇨🇿 CASABLANCA-AS81.0.217.0/24 Casablanca INT
SOAns1.tele3.czroot@tele3.cz serial=1783380360

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=1784521042

Subdomains

smtp.tchas.cz
mail.tchas.cz

Same first word

tchas.cz

Similar names

chats.co.il
chats.co
chtas.com
cshta.cn
stach.dk
chats.ru
chats.cc
chats.group
scath.de
tasch.com
htcas.com
scaht.eu
ahstc.com
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ahcts.co
schat.net
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schat.cz
shtac.cn
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tcash.it
chtsa.gotdns.com
casht.com.br
shcta.cn
schat.in
schat.me
chats.com.ua
satch.se
chats.tk
schat.io
chats.bradesco
chats.net
ahstc.org
shcat.ru
tcash.mobi
stach.co
satch.net
chats.one
tscha.com
astch.nl
ascht.it
tcash.org
catsh.it
satch.at
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stach.de
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ahcts.co.nz
chtsa.com
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cstah.cn
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ahstc.cn
hstac.com.au
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stach.se
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tachs.com
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scath.com
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tcash.net
chast.in
tasch.net
atcsh.com
stach.tv
ahstc.net
atshc.com
chats.asia
hscta.net
stahc.com
cshat.ro
shcat.com
satch.com.au
satch.tv
chats.eu
shcat.net

DNS History

14 records (6 active, 8 former)

20162017201820192020202120222023202420252026NSns1.tele3.czns2.tele3.czns3.tele3.euedge.ikontakt.czns2.poda.czns3.poda.czns4.tele3.usMXmail.dc3.czblackcat.tele3.czmail.tchas.czsmtp.tchas.czA2001:4de8:fa71:7e1e::f05389.235.1.5395.46.32.130
○NSedge.ikontakt.cz2015-08-27 → 2016-06-24 · 4 obs
● 2015-08-27 11:21:28
● 2016-06-24 11:39:30
○ 2019-04-05 21:42:56
○ 2026-07-20 04:40:56
●NSns1.tele3.cz2019-04-05 → 2026-07-20 · 3 obs
○ 2016-06-24 11:39:30
● 2019-04-05 21:42:56
● 2026-07-20 04:40:56
○NSns2.poda.cz2015-08-27 → 2016-06-24 · 4 obs
● 2015-08-27 11:21:28
● 2016-06-24 11:39:30
○ 2019-04-05 21:42:56
○ 2026-07-20 04:40:56
●NSns2.tele3.cz2019-04-05 → 2026-07-20 · 3 obs
○ 2016-06-24 11:39:30
● 2019-04-05 21:42:56
● 2026-07-20 04:40:56
○NSns3.poda.cz2015-08-27 → 2016-06-24 · 4 obs
● 2015-08-27 11:21:28
● 2016-06-24 11:39:30
○ 2019-04-05 21:42:56
○ 2026-07-20 04:40:56
●NSns3.tele3.eu2019-04-05 → 2026-07-20 · 3 obs
○ 2016-06-24 11:39:30
● 2019-04-05 21:42:56
● 2026-07-20 04:40:56
○NSns4.tele3.us2019-04-05 → 2019-04-05 · 4 obs
○ 2016-06-24 11:39:30
● 2019-04-05 21:42:56
○ 2026-06-20 19:05:14
○ 2026-07-20 04:40:56
○MXblackcat.tele3.cz2019-04-05 → 2019-04-05 · 4 obs
○ 2016-06-24 11:39:30
● 2019-04-05 21:42:56
○ 2026-06-20 19:05:14
○ 2026-07-20 04:40:56
●MXmail.dc3.cz2019-04-05 → 2026-07-20 · 3 obs
○ 2016-06-24 11:39:30
● 2019-04-05 21:42:56
● 2026-07-20 04:40:56
○MXmail.tchas.cz2015-08-27 → 2016-06-24 · 4 obs
● 2015-08-27 11:21:28
● 2016-06-24 11:39:30
○ 2019-04-05 21:42:56
○ 2026-07-20 04:40:56
○MXsmtp.tchas.cz2015-08-27 → 2016-06-24 · 4 obs
● 2015-08-27 11:21:28
● 2016-06-24 11:39:30
○ 2019-04-05 21:42:56
○ 2026-07-20 04:40:56
●A2001:4de8:fa71:7e1e::f0532026-06-20 → 2026-07-20 · 3 obs
○ 2019-04-05 21:42:56
● 2026-06-20 19:05:14
● 2026-07-20 04:40:56
●A89.235.1.532026-06-20 → 2026-07-20 · 3 obs
○ 2019-04-05 21:42:56
● 2026-06-20 19:05:14
● 2026-07-20 04:40:56
○A95.46.32.1302019-04-05 → 2019-04-05 · 3 obs
● 2019-04-05 21:42:56
○ 2026-06-20 19:05:14
○ 2026-07-20 04:40:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
czc.ns.nic.cz, b.ns.nic.cz, a.ns.nic.cz, d.ns.nic.cz-
tchas.czns3.tele3.eu, ns2.tele3.cz, ns1.tele3.cz4 records

✅ Authoritative Response

Server:95.80.251.222

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1058ms | Queries: -

📄 Records

TypeCountSample Data
A189.235.1.53
AAAA12001:4de8:fa71:7e1e::f053
NS3ns3.tele3.eu, ns2.tele3.cz...
MX1mail.dc3.cz (pri: 10)
SOA1ns1.tele3.cz root.tele3.cz

📌 Glue Records Collected

Total: 4

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

Analysis

Hierarchy

smtp.tchas.cz and mail.tchas.cz each fall under tchas.cz as their parent domain.

IP Addresses

tchas.cz points to the IP addresses 89.235.1.53 and 2001:4de8:fa71:7e1e::f053

Two other host names, along with kyta.cz, ardia.cz and rosenau.sk, also share IP numbers with tchas.cz.

Name Servers

Three name servers are authoritative for tchas.cz: ns1.tele3.cz, ns2.tele3.cz and ns3.tele3.eu.

The name servers of tchas.cz overlap at least partially with those of other domains — among them agni.cz, 212sqn.cz, wsw.cz and two more.

These name servers commonly appear in combination with the name servers ns4.tele3.us.

ns1.tele3.cz resolves to 81.0.217.111 and 2001:1528:123::d01. ns2.tele3.cz resolves to 95.80.251.222 and 2001:4de8:fa71:7e1e::d02. ns3.tele3.eu resolves to 5.9.97.250 and 2a01:4f8:162:24c1::d03. All three hostnames point to two IP numbers each.

Mail Servers

The sole mail server for tchas.cz is mail.dc3.cz.

Among the domains sharing a mail server setup with tchas.cz are 1cory.cz, bratislava-city.sk, abbazia.cz and two others.

There is one IP number for mail.dc3.cz: 81.0.217.5.