ROBTEX.COM - undefined.cz
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undefined.cz checked at 2025-12-01T20:16:25.469Z 703ms 80/80/80 100% 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
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AI analysis
undefined.cz points to two IPs: 2001:1568::14 and 81.91.86.14.
Other host names including mail.rychlazelva.cz, vs233.server4u.cz, vs472.server4u.cz, mail.evanescence.cz and jawa.sk share IP numbers with undefined.cz.
undefined.cz's delegation uses two name servers, ns2.web4u.cz and ns.web4u.cz.
undefined.cz shares the same name server setup as other domains, for example prestige.cz, fein-naradi.cz, umb.cz, paex.cz and cutnest.com.
Host names with two IPs:
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 shares its mail server setup with other domains, including slezanka.cz, kompendium.cz, forbrightsparks.com, belts.cz and rosendahl.cz.
undefined.cz shares some mail servers with other domains, for example retailguide.cz and chataorlik.cz.
mx.web4u.cz points to two IPs: 2001:1568::7012 and 81.91.87.12.