CF1760552523346-tsm20251015174050

DNSWHOIS.INFO - www.gemsystem.cz

Search for IP or hostnames:

www.gemsystem.cz checked at 2025-10-15T18:22:03.335Z 418ms 118/118/118 100% R:31

www.gemsystem.cz

CNAMEgemsystem.cz
NSns1.tech.gem.cz
A2001:67c:e2c:ff:143::1 2 connect
PTRns1.tech.gem.cz
A31.170.176.143🇨🇿 2 connect
NSns2.tech.gem.cz
A2a01:28:ca08:ff:167::1 🇨🇿 SH.cz
PTRns2.tech.gem.cz
A46.234.101.167🇨🇿 SH.cz
NSns3.tech.gem.cz
A2a01:4ff:f0:208e::1 🇺🇸 Hetzner Online Cloud 2
PTRns3.tech.gem.cz
A178.156.153.0🇩🇪 Hetzner Online Cloud 2
PTRns3.tech.gem.cz
MXgemsystem-cz.mail.protection.outlook.com
A2a01:111:f403:ca04::d 🇮🇪 Microsoft
PTRmail-db6pr03cu00105.inbound.protection.outlook.com
A2a01:111:f403:ca09::4 🇳🇱 Microsoft
PTRmail-am0pr04cu00504.inbound.protection.outlook.com
A2a01:111:f403:ca09::9 🇳🇱 Microsoft
PTRmail-as8pr04cu00801.inbound.protection.outlook.com
A2a01:111:f403:ca09::f 🇳🇱 Microsoft
PTRmail-am7pr05cu00307.inbound.protection.outlook.com
A52.101.68.5🇮🇪 Microsoft
PTRmail-du2pr03cu00105.inbound.protection.outlook.com
A52.101.68.16🇮🇪 Microsoft
PTRmail-db4pr02cu00400.inbound.protection.outlook.com
A52.101.68.18🇮🇪 Microsoft
PTRmail-db4pr02cu00302.inbound.protection.outlook.com
A52.101.73.8🇳🇱 Microsoft
PTRmail-am0pr04cu00500.inbound.protection.outlook.com
A2001:67c:e2c:ff:144::1 2 connect
PTRdmz-2001-67c-e2c-ff-144--1.net.gem.cz
A31.170.176.144🇨🇿 2 connect

gemsystem.cz

NSns1.tech.gem.cz
NSns2.tech.gem.cz
NSns3.tech.gem.cz
MXgemsystem-cz.mail.protection.outlook.com
A2001:67c:e2c:ff:144::1 2 connect
A31.170.176.144🇨🇿 2 connect

PTR for

Starts with same word

Starts similarily

AI analysis

www.gemsystem.cz resolves to two IP numbers: 2001:67c:e2c:ff:144::1 and 31.170.176.144.

Other host names including gem.cz, gemsystem.cz and ezrak.eu share IP numbers with www.gemsystem.cz.

www.gemsystem.cz delegates to three name servers: ns1.tech.gem.cz, ns2.tech.gem.cz and ns3.tech.gem.cz.

www.gemsystem.cz shares some name servers with other domains, for example 8.0.a.c.8.2.0.0.1.0.a.2.ip6.arpa, gemsystem.cz, f.f.0.0.8.0.a.c.8.2.0.0.1.0.a.2.ip6.arpa, 161-174.101.234.46.in-addr.arpa and ezrak.eu.

Host names with two IP numbers:

ns1.tech.gem.cz: 2001:67c:e2c:ff:143::1 and 31.170.176.143

ns2.tech.gem.cz: 2a01:28:ca08:ff:167::1 and 46.234.101.167

ns3.tech.gem.cz: 2a01:4ff:f0:208e::1 and 178.156.153.0

www.gemsystem.cz is handled by a single mail server, gemsystem-cz.mail.protection.outlook.com.

www.gemsystem.cz uses the same mail server setup as other domains, for example gemsystem.cz.

Host gemsystem-cz.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::d, 2a01:111:f403:ca09::4, 2a01:111:f403:ca09::9, 2a01:111:f403:ca09::f, 52.101.68.5, 52.101.68.16, 52.101.68.18 and 52.101.73.8.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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