WWW.RTSAK.COM - 4wdev.cz

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4wdev.cz checked at 2025-11-26T14:43:25.202Z 395ms 84/84/84 100% R:25 allDone:true timedOut:false

`4wdev.cz`

MX	`mail.4ws.cz`
		A	77.78.106.41^{🇨🇿 CASABLANCA-AS}
			PTR	`mx.4ws.cz`
NS	`ns.forpsi.cz`
		A	2001:15e8:201:1::d1b9 ^{🇨🇿 INTERNET-CZ}
			PTR	`ns.forpsi.cz`
		A	81.2.209.185^{🇨🇿 INTERNET-CZ}
			PTR	`ns.forpsi.cz`
NS	`ns.forpsi.it`
		A	2a00:6d41:2:1::5 ^{🇮🇹 ARUBA-ASN}
			PTR	`ns.forpsi.it`
		A	95.110.254.165^{🇮🇹 ARUBA-ASN}
			PTR	`host165-254-110-95.serverdedicati.aruba.it`
NS	`ns.forpsi.net`
		A	2001:15e8:101:1::c282 ^{🇨🇿 INTERNET-CZ}
			PTR	`ns.forpsi.net`
		A	81.2.194.130^{🇨🇿 INTERNET-CZ}
			PTR	`ns.forpsi.net`
A	77.78.106.56^{🇨🇿 CASABLANCA-AS}
		PTR	`ww6.4ws.cz`

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rank #887 in the tld

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4wdev.cz points to a single IP number: 77.78.106.56.

Other host names, for instance ruckl.com, parking.cz, ebas.cz, chachar.cz and elaplast.cz share IP numbers with 4wdev.cz.

The delegation for 4wdev.cz is handled by three name servers: ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.

4wdev.cz at least partially shares name servers with other domains, for instance zoopla.cz, interactiveworld.eu, az-com.eu, kubanci.cz and jetbook.biz.

These name servers are commonly used with the name servers ns.forpsi.us.

Two IP numbers per host:

ns.forpsi.cz points to 2001:15e8:201:1::d1b9 and 81.2.209.185.

ns.forpsi.it points to 2a00:6d41:2:1::5 and 95.110.254.165.

ns.forpsi.net points to 2001:15e8:101:1::c282 and 81.2.194.130.

4wdev.cz is handled by a single mail server, mail.4ws.cz.

4wdev.cz uses the same mail server configuration as other domains, such as acstrans.cz, hradynazahrady.cz, diap.cz, barvy-omitky.cz and izoglass.cz.

4wdev.cz shares mail servers with other domains, at least partially, for instance dsk.cz and praha-suchdol.cz.

mail.4ws.cz points to a single IP: 77.78.106.41.