CF1759922677979-tsm20251008082644

WWW.ROBTEX.COM - s4l.cz

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s4l.cz checked at 2025-10-08T11:24:37.962Z 197ms 115/115/115 100% R:13

s4l.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
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
A81.91.86.12🇨🇿 WEB4U
PTRphp53.web4u.cz

cz

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

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AI analysis

The parent of mail.s4l.cz is s4l.cz.

s4l.cz points to a single IP number: 81.91.86.12.

Other host names, for instance educol.eu, pxmc.org, aavet.eu, cyklodoprava.eu and www.aavet.cz share IP numbers with s4l.cz.

s4l.cz is delegated to two name servers: ns2.web4u.cz and ns.web4u.cz.

s4l.cz uses the same name server setup as other domains, for instance votice.eu, eumedical.eu, sckolin.cz, nano-concept.com and erv.cz.

Host names with two IP numbers:

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

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

s4l.cz is handled by two mail servers: mx1.mailchannels.net and mx2.mailchannels.net.

s4l.cz shares the same mail server setup as other domains, including dateva.se, rateag.net, welloflifecenter.com, profmacro.com and aquatasy.com.

s4l.cz shares some mail servers with other domains, including cy-tube.com.tw, casinositeshelper.com, oresundscharter.se, teacherhack.com and mayfly.se.

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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igmsKBQ CF johedugfp 2025-10-08