CF1760715273865-tsm20251017082432

IPLIST.NET - builder.cz

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builder.cz checked at 2025-10-17T15:34:33.737Z 1505ms 68/68/68 100% R:12

builder.cz

MXmail.builder.cz
A81.91.84.134🇨🇿 WEB4U
PTRm105.server4u.cz
NSns2.web4u.cz
A2a02:a40:100:28ff::12 🇨🇿 Radiokomunikace
PTRns2.web4u.cz
A85.207.53.12🇨🇿 Radiokomunikace
PTRns2.web4u.cz
NSns.web4u.cz
A2001:1568:fd::241 🇨🇿 WEB4U
PTRns.web4u.cz
A185.14.224.241🇨🇿 WEB4U
PTRns.web4u.cz
A81.91.84.189🇨🇿 WEB4U
PTRwm103.web-media.cz

cz

NSa.ns.nic.cz
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz

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AI analysis

builder.cz is the parent of mail.builder.cz.

builder.cz points to a single IP number: 81.91.84.189.

other host names for instance arten.cz, grafika.cz, mail.osapo.com, aliaz.cz and wm103.web-media.cz share IP numbers with builder.cz.

builder.cz is delegated to two name servers: ns2.web4u.cz and ns.web4u.cz.

builder.cz shares the same name server setup as other domains, for example ikite.cz, moluft.com, votice.eu, eumedical.eu and sckolin.cz.

Host names with two IP numbers:

ns2.web4u.cz points to 2a02:a40:100:28ff::12 and 85.207.53.12

ns.web4u.cz points to 2001:1568:fd::241 and 185.14.224.241

builder.cz is handled by a single mail server, mail.builder.cz.

Host name mail.builder.cz points to IP address 81.91.84.134.

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

rUlPAur CF johedugfp 2025-10-17