CF1759528822645-tsm20251003185623

WWW.RTSAK.COM - onlinecomp.eu

Search for IP or hostnames:

onlinecomp.eu checked at 2025-10-03T22:00:22.632Z 398ms 78/78/78 100% R:13

onlinecomp.eu

MXmx.web4u.cz
A2001:1568::7012 🇨🇿 WEB4U
PTRmx.web4u.cz
A81.91.87.12🇨🇿 WEB4U
PTRmx.web4u.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
A81.91.86.11🇨🇿 WEB4U
PTRphp5.web4u.cz

eu

NSbe.dns.eu
NSsi.dns.eu
NSw.dns.eu
NSx.dns.eu
NSy.dns.eu

Starts with same word

Starts similarily

AI analysis

onlinecomp.eu points to a single IP number: 81.91.86.11.

other host names for instance via-natura.cz, unassigned-81-91-86-149.web4u.cz, unassigned-81-91-85-4.web4u.cz, unassigned-82-208-36-221.web4u.cz and polaria.cz share IP numbers with onlinecomp.eu.

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

onlinecomp.eu shares the same name server setup as other domains, for example nater-fasad.cz, immediate.cz, davidlucak.com, pechac.org and primecooler.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

onlinecomp.eu is handled by a single mail server, mx.web4u.cz.

onlinecomp.eu shares the same mail server setup as other domains, for instance mix4u.cz, ekov.cz, finesse.cz, fivetec.eu and vvd.cz.

onlinecomp.eu shares mail servers with other domains at least partially, including lipovy.cz, isauk.net, elubra.cz, ssrkunice.cz and biza.info.

these mail servers are commonly used alongside zalozni.mail-server.cz.

Host mx.web4u.cz resolves to two IPs: 2001:1568::7012 and 81.91.87.12.

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

UIkGKai CF johedugfp 2025-10-03