CF1763509234998-tsm20251116095642

WWW.RTSAK.COM - server4u.cz

Search for IP or hostnames:

server4u.cz checked at 2025-11-18T23:40:34.920Z 860ms 80/80/80 100% R:13 allDone:true timedOut:false

server4u.cz

NSns2.web4u.cz
A2a02:a40:100:28ff::12 🇨🇿 BlueTone-AS
PTRns2.web4u.cz
A85.207.53.12🇨🇿 BlueTone-AS
PTRns2.web4u.cz
NSns.web4u.cz
A2001:1568:fd::241 🇨🇿 WEB4U
PTRns.web4u.cz
A185.14.224.241🇨🇿 WEB4U
PTRns.web4u.cz
MXmx1.mailchannels.net
A52.38.143.159🇺🇸 Amazon
PTRec2-52-38-143-159.us-west-2.compute.amazonaws.com
MXmx2.mailchannels.net
A18.236.29.166🇺🇸 Amazon
PTRec2-18-236-29-166.us-west-2.compute.amazonaws.com
A81.91.86.27🇨🇿 WEB4U
PTRwww.spravadomen.cz

cz

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

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Starts with same word

Starts similarily

AI analysis

server4u.cz is a parent of vs397.server4u.cz, m215.server4u.cz, m216-1.server4u.cz, m185.server4u.cz, d313.server4u.cz and hundreds of other host names.

server4u.cz points to a single IP address: 81.91.86.27.

Other host names such as www2.spravadomen.cz, sprava-domeny.cz, asp4you.cz, phpmyadmin.sprava-domeny.cz and spravadomen.cz share IPs with server4u.cz.

Two name servers ns2.web4u.cz and ns.web4u.cz handle the delegation for server4u.cz.

server4u.cz shares the same name server setup as other domains, for example bumbalek.eu, tipsport.at, laboratore.cz, eurofoam-sport.com and labmark.it.

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.

Two mail servers handle server4u.cz: mx1.mailchannels.net and mx2.mailchannels.net.

server4u.cz shares the same mail server setup as other domains, including bitteliten.net, mrbgc.com, mapstudios.org, bluecoatsingers.org and abens.org.

server4u.cz shares some mail servers with other domains, for example thomconsulting.com.au.

Host names with one IP number:

mx1.mailchannels.net points to 52.38.143.159; mx2.mailchannels.net points to 18.236.29.166.

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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