WWW.ROBTEX.COM - undefined.cz
Search for IP or hostnames:
undefined.cz checked at 2025-11-11T01:31:36.145Z 394ms 120/120/120 100% R:12 allDone:true timedOut:false undefined.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 | 2001:1568::14🇨🇿 WEB4U | ||||||
| PTR | php7.web4u.cz | ||||||
| A | 81.91.86.14🇨🇿 WEB4U | ||||||
| PTR | php7.web4u.cz | ||||||
cz
| NS | a.ns.nic.cz | ||||||
| NS | b.ns.nic.cz | ||||||
| NS | c.ns.nic.cz | ||||||
| NS | d.ns.nic.cz | ||||||
Starts with same word
Starts similarily
AI analysis
Two IP numbers are pointed to by undefined.cz: 2001:1568::14 and 81.91.86.14.
other host names include mail.rychlazelva.cz, vs233.server4u.cz, vs472.server4u.cz, mail.evanescence.cz and jawa.sk; they share IP numbers with undefined.cz.
Two name servers ns2.web4u.cz and ns.web4u.cz handle the delegation for undefined.cz.
undefined.cz shares the same name server setup as other domains, for instance prestige.cz, fein-naradi.cz, umb.cz, paex.cz and cutnest.com.
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.
undefined.cz is handled by a single mail server, mx.web4u.cz.
undefined.cz uses the same mail server setup as other domains, for instance slezanka.cz, kompendium.cz, forbrightsparks.com, belts.cz and rosendahl.cz.
undefined.cz shares at least some mail servers with other domains, including retailguide.cz and chataorlik.cz.
mx.web4u.cz resolves to two IPs: 2001:1568::7012 and 81.91.87.12.