CF1762274741498-tsm20251104152717

DNSWHOIS.INFO - holub3.osu.cz

Search for IP or hostnames:

holub3.osu.cz checked at 2025-11-04T16:45:41.482Z 895ms 47/47/47 100% R:22

holub3.osu.cz

MXmailer2.osu.cz
A2001:718:1005:601::9 🇨🇿 CESNET
PTRmailer2.osu.cz
A195.113.106.9🇨🇿 CESNET
PTRmailer2.osu.cz
MXmailer.osu.cz
A2001:718:1005:601::6 🇨🇿 CESNET
PTRmailer.osu.cz
A195.113.106.6🇨🇿 CESNET
PTRmailer.osu.cz

osu.cz

NSalbert.osu.cz
MXmailer2.osu.cz
MXmailer.osu.cz
NSoudec.osu.cz
NSnsa.ces.net
A2001:718:1005:620::25 🇨🇿 CESNET
A78.128.128.25🇨🇿 CESNET
rank #79522 globally
rank #302 in the tld

AI analysis

Two mail servers handle holub3.osu.cz: mailer2.osu.cz and mailer.osu.cz.

holub3.osu.cz shares the same mail server setup as other domains, for instance osu.eu, jsmeostravska.cz, rcberta2.osu.cz, holy.osu.cz and studujostravskou.cz.

Host names with two IP numbers:

The host name mailer2.osu.cz points to 2001:718:1005:601::9 and 195.113.106.9; the host name mailer.osu.cz points to 2001:718:1005:601::6 and 195.113.106.6.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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