ROBTEX.COM - instance.cz
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instance.cz checked at 2025-12-16T11:48:52.703Z 2870ms 83/83/83 100% R:21 allDone:true timedOut:false instance.cz
| MX | mx.web4u.cz | ||||||
| A | 2001:1568::7012🇨🇿 WEB4U | ||||||
| PTR | mx.web4u.cz | ||||||
| A | 81.91.87.12🇨🇿 WEB4U | ||||||
| PTR | mx.web4u.cz | ||||||
| NS | ns2.web4u.cz | ||||||
| A | 2a02:a40:100:28ff::12🇨🇿 Radiokomunikace | ||||||
| PTR | ns2.web4u.cz | ||||||
| A | 85.207.53.12🇨🇿 Radiokomunikace | ||||||
| PTR | ns2.web4u.cz | ||||||
| NS | ns.web4u.cz | ||||||
| A | 2001:1568:fd::241🇨🇿 WEB4U | ||||||
| PTR | ns.web4u.cz | ||||||
| A | 185.14.224.241🇨🇿 WEB4U | ||||||
| PTR | ns.web4u.cz | ||||||
| A | 2a01:28:ca:125::1🇨🇿 SH.cz | ||||||
| A | 88.86.119.233🇨🇿 SH.cz | ||||||
| PTR | antani.clanwars.cz | ||||||
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AI analysis
instance.cz points to two IP numbers: 2a01:28:ca:125::1 and 88.86.119.233.
Other host names, for instance zsgvitkov.cz, ssams.cz, www.gsh.cz, algds.cronos.cz and ssphzuh.cz share IP numbers with instance.cz.
instance.cz's delegation is to two name servers ns2.web4u.cz and ns.web4u.cz.
instance.cz shares the same name server configuration as other domains, such as aujuge.cz, fischl.info, vdolek.cz, kino-doma.cz and wielton-agro.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
instance.cz is served by a single mail server, mx.web4u.cz.
instance.cz uses the same mail server setup as other domains such as fivetec.eu, vvd.cz, avemultimedia.cz, sprava-dns.cz and lusito.eu.
instance.cz shares at least partially some mail servers with other domains, for example isauk.net, elubra.cz, ssrkunice.cz and biza.info.
These mail servers are often used alongside the mail servers zalozni.mail-server.cz.
Hostname mx.web4u.cz resolves to two IPs: 2001:1568::7012 and 81.91.87.12.