DNSWHOIS.INFO - rt.cesnet.cz

Search for IP or hostnames:

rt.cesnet.cz checked at 2025-10-16T03:52:04.432Z 396ms 66/66/66 100% R:18

`rt.cesnet.cz`

MX	`ag1.cesnet.cz`
		A	2001:718:ff05:208::94 ^{🇨🇿 CESNET}
			PTR	`ag1.cesnet.cz`
		A	78.128.247.94^{🇨🇿 CESNET}
			PTR	`ag1.cesnet.cz`
MX	`ag2.cesnet.cz`
		A	2001:718:ff05:10b::245 ^{🇨🇿 CESNET}
			PTR	`ag2.cesnet.cz`
		A	78.128.248.245^{🇨🇿 CESNET}
			PTR	`ag2.cesnet.cz`
A	2001:718:ff05:202::21 ^{🇨🇿 CESNET}
		PTR	`rt.cesnet.cz`
A	78.128.216.21^{🇨🇿 CESNET}
		PTR	`rt.cesnet.cz`

`cesnet.cz`

	MX	`ag1.cesnet.cz`
	MX	`ag2.cesnet.cz`
	NS	`nsa.cesnet.cz`
	NS	`nsa.ten.cz`
	NS	`decsys.vsb.cz`
	NS	`nsa.ces.net`
	A	2001:718:ff05:108::93 ^{🇨🇿 CESNET}
	A	78.128.246.93^{🇨🇿 CESNET}

rank #100561 globally
rank #390 in the tld

PTR for

1.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.2.0.5.0.f.f.8.1.7.0.1.0.0.2.ip6.arpa

21.216.128.78.in-addr.arpa

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AI analysis

rt.cesnet.cz points to two IPs: 2001:718:ff05:202::21 and 78.128.216.21.

rt.cesnet.cz is handled by two mail servers: ag1.cesnet.cz and ag2.cesnet.cz.

rt.cesnet.cz shares its mail server setup with other domains, including cupress.cuni.cz, ipm.cz, ipv6.cz, mmp.cz and sch.cuni.cz.

The mail servers for rt.cesnet.cz are shared with other domains, for instance brana.mustribro.cz, ddm.nmnm.cz, vetuni.cz, nukib.cz and izsol.cz.

These mail servers are commonly used with mx2.cesnet.cz, mx.cesnet.cz, mta2.zzsmsk.cz, mta.zzsmsk.cz, mail.mustribro.cz and portal.nmnm.cz.

Host names with two IPs:

ag1.cesnet.cz points to: 2001:718:ff05:208::94 and 78.128.247.94

ag2.cesnet.cz points to: 2001:718:ff05:10b::245 and 78.128.248.245

dbq