ctp.cz - robtex.com

ctp.cz

DNSSEC⚠️ Not signed
A89.187.135.216🇨🇿 COOLHOUSING-AS89.187.134.0/23 Network of Coolhousing
NSns1.hukot.cz
A46.36.35.65🇨🇿 SECURITYNET-AS46.36.35.0/24 GTT-NET prefix
PTRmx2.securitynet.cz
NSns2.securitynet.cz
A46.36.36.151🇨🇿 SECURITYNET-AS46.36.36.0/24 GTT-NET prefix
PTR151-36.hukot.cloud
NSns3.hukot.cz
A46.36.36.153🇨🇿 SECURITYNET-AS46.36.36.0/24 GTT-NET prefix
PTR153-36.hukot.cloud
MXctp-cz.mail.protection.outlook.com
A2a01:111:f403:ca04::b🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-dbbpr03cu00103.inbound.protection.outlook.com
A2a01:111:f403:ca04::10🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-dbapr03cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca09::8🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as2pr05cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca09::b🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am7pr05cu00103.inbound.protection.outlook.com
A52.101.68.8🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-du0pr03cu00100.inbound.protection.outlook.com
A52.101.68.16🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db4pr02cu00400.inbound.protection.outlook.com
A52.101.73.2🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as9pr07cu00302.inbound.protection.outlook.com
A52.101.73.15🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am9pr04cu00107.inbound.protection.outlook.com
TXTMS=ms80240499
TXTWrHjL68EfFS4CjW8vtwC3bMEcacG1MfVbwjtM4quhRiylMU/y6gOQud2ErmBCSzz2xExh4EdFzdJw...
TXTv=spf1 include:spf.protection.outlook.com -all
SOAns1.hukot.czhukot@hukot.cz serial=1756811822

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=1783898240

Same first word

Similar names

DNS History

13 records (5 active, 8 former)

20162017201820192020202120222023202420252026NSns1.hukot.czns2.securitynet.czns3.hukot.czdnssec.thosting.czns.thosting.czns1.thosting.czns2.thosting.czMXctp-cz.mail.protection.outlook.comgate.ctpinfo.czlenka.ph.ipex.czA89.187.135.21689.187.135.21389.187.135.37
NSdnssec.thosting.cz2015-08-19 → 2017-05-27 · 4 obs
● 2015-08-19 06:13:24
● 2017-05-27 10:52:14
○ 2026-06-13 08:42:16
○ 2026-07-12 23:47:18
NSns.thosting.cz2015-08-19 → 2017-05-27 · 4 obs
● 2015-08-19 06:13:24
● 2017-05-27 10:52:14
○ 2026-06-13 08:42:16
○ 2026-07-12 23:47:18
NSns1.hukot.cz2026-06-13 → 2026-07-12 · 3 obs
○ 2017-05-27 10:52:14
● 2026-06-13 08:42:16
● 2026-07-12 23:47:18
NSns1.thosting.cz2015-08-19 → 2017-05-27 · 4 obs
● 2015-08-19 06:13:24
● 2017-05-27 10:52:14
○ 2026-06-13 08:42:16
○ 2026-07-12 23:47:18
NSns2.securitynet.cz2026-06-13 → 2026-07-12 · 3 obs
○ 2017-05-27 10:52:14
● 2026-06-13 08:42:16
● 2026-07-12 23:47:18
NSns2.thosting.cz2015-08-19 → 2017-05-27 · 4 obs
● 2015-08-19 06:13:24
● 2017-05-27 10:52:14
○ 2026-06-13 08:42:16
○ 2026-07-12 23:47:18
NSns3.hukot.cz2026-06-13 → 2026-07-12 · 3 obs
○ 2017-05-27 10:52:14
● 2026-06-13 08:42:16
● 2026-07-12 23:47:18
MXctp-cz.mail.protection.outlook.com2026-06-13 → 2026-07-12 · 3 obs
○ 2017-05-27 10:52:14
● 2026-06-13 08:42:16
● 2026-07-12 23:47:18
MXgate.ctpinfo.cz2015-08-19 → 2017-05-27 · 4 obs
● 2015-08-19 06:13:24
● 2017-05-27 10:52:14
○ 2026-06-13 08:42:16
○ 2026-07-12 23:47:18
MXlenka.ph.ipex.cz2015-08-19 → 2016-12-09 · 4 obs
● 2015-08-19 06:13:24
● 2016-12-09 21:14:52
○ 2017-05-27 10:52:14
○ 2026-07-12 23:47:18
A89.187.135.2132017-05-27 → 2017-05-27 · 4 obs
○ 2016-12-09 21:14:52
● 2017-05-27 10:52:14
○ 2026-06-13 08:42:16
○ 2026-07-12 23:47:18
A89.187.135.2162026-06-13 → 2026-07-12 · 3 obs
○ 2017-05-27 10:52:14
● 2026-06-13 08:42:16
● 2026-07-12 23:47:18
A89.187.135.372015-08-19 → 2016-12-09 · 4 obs
● 2015-08-19 06:13:24
● 2016-12-09 21:14:52
○ 2017-05-27 10:52:14
○ 2026-07-12 23:47:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
ctp.czns1.hukot.cz, ns2.securitynet.cz, ns3.hukot.cz-

✅ Authoritative Response

Server:46.36.35.65

NS records: ns1.hukot.cz, ns2.securitynet.cz, ns3.hukot.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctp.cz (unsigned zone)

⏱️ Timing

Total: 3472ms | Queries: -

📄 Records

TypeCountSample Data
A189.187.135.216
NS3ns3.hukot.cz, ns1.hukot.cz...
MX1ctp-cz.mail.protection.outlook.com (pri:
TXT3WrHjL68EfFS4CjW8vtwC3bMEcacG1MfVbwjtM4qu, v=spf1 include:spf.protection.outlook.co...
SOA1ns1.hukot.cz hukot.hukot.cz

Analysis

IP Addresses

ctp.cz resolves to one IP address: 89.187.135.216.

Additional host names — including spielberk.eu and ctp.zserver.cz — share IP numbers with ctp.cz.

Name Servers

ctp.cz has three name servers — ns1.hukot.cz, ns3.hukot.cz and ns2.securitynet.cz.

ctp.cz has at least partial name server overlap with other domains, such as paranoiaworks.com, samsungmagazine.eu, stavebniskola.cz and two others.

Each of the three hostnames points to exactly one IP address: ns1.hukot.cz points to 46.36.35.65, ns3.hukot.cz points to 46.36.36.153 and ns2.securitynet.cz points to 46.36.36.151.

Mail Servers

Mail for ctp.cz is handled by a single mail server, ctp-cz.mail.protection.outlook.com.

ctp-cz.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.68.8, 52.101.68.16, 52.101.73.2 and 5 others.