ROBTEX.COM - classmaster.cz

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classmaster.cz checked at 2025-12-08T03:45:56.727Z 2174ms 90/90/90 100% R:15 allDone:true timedOut:false

`classmaster.cz`

MX	`antispam.hosting90.cz`
		A	2a03:b780:1:1:216:3eff:fe00:52f^{🇨🇿 IGNUM-AS}
			PTR	`antispam.hosting90.cz`
		A	130.193.9.47^{🇨🇿 IGNUM-AS}
			PTR	`antispam.hosting90.cz`
NS	`ns1.hosting90.cz`
		A	2a03:b780::1:1^{🇨🇿 IGNUM-AS}
			PTR	`ns1.hosting90.cz`
		A	130.193.8.82^{🇨🇿 IGNUM-AS}
			PTR	`ns1.hosting90.cz`
NS	`ns2.hosting90.cz`
		A	2001:880:0:15::10c^{🇩🇪 ONE-NETWORK}
			PTR	`ns2.hosting90.cz`
		A	185.102.21.207^{🇨🇿 ONE-NETWORK}
			PTR	`ns2.hosting90.cz`
NS	`ns3.hosting90.net`
		A	2604:a880:800:10::696:f001^{🇺🇸 DIGITALOCEAN}
			PTR	`ns3.hosting90.net`
		A	104.236.202.83^{🇺🇸 DIGITALOCEAN}
			PTR	`ns3.hosting90.net`
A	2a03:b780:1:1:216:3eff:fe00:501^{🇨🇿 IGNUM-AS}
		PTR	`h90-w13.hosting90.cz`
A	130.193.9.1^{🇨🇿 IGNUM-AS}
		PTR	`h90-w13.hosting90.cz`

`cz`

	NS	`a.ns.nic.cz`
	NS	`b.ns.nic.cz`
	NS	`c.ns.nic.cz`
	NS	`d.ns.nic.cz`

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AI analysis

classmaster.cz points to two IP numbers: 2a03:b780:1:1:216:3eff:fe00:501 and 130.193.9.1.

Other host names such as vssh.cz, imageo.sk, apptocloud.ch, iostudio.cz and festingar.cz share IPs with classmaster.cz.

classmaster.cz is delegated to three name servers: ns1.hosting90.cz, ns2.hosting90.cz and ns3.hosting90.net.

classmaster.cz at least partially shares name servers with other domains, for example bestpc.cz, 80.46.37.in-addr.arpa, sexyboty.cz, dds.cz and kaps-racing.com.

Host names with two IP numbers:

ns1.hosting90.cz points to 2a03:b780::1:1 and 130.193.8.82

ns2.hosting90.cz points to 2001:880:0:15::10c and 185.102.21.207

ns3.hosting90.net points to 2604:a880:800:10::696:f001 and 104.236.202.83

The antispam.hosting90.cz mail server handles classmaster.cz.

classmaster.cz shares the same mail server setup as other domains, including kalendare-online.cz, kpms.cz, renomat.cz, pecovatelskasluzba.cz and jednicky.cz.

classmaster.cz shares at least partially some mail servers with other domains, for instance auctum.cz, finalalfa.cz, uconsult.cz, sawcl.com and bois.cz.

antispam.hosting90.cz points to two IP numbers: 2a03:b780:1:1:216:3eff:fe00:52f and 130.193.9.47.