www.cz

Skynet.cz, pgp.cz, www.bohem-net.cz, skyhosting.skynet.cz, www.skynet.cz and at least two other hosts point to the same IP. Bayerova.cz, vslechovice.cz, hotel-prestige.cz, netvision.cz, centra-sn.cz and at least 99 other hosts share name servers with this domain.

Also check www.www.cz.

There are several hundred of domains that use the name server ns1.skynet.cz.

Most of those use the two name servers ns1 and ns2.skynet.cz together, hereafter referred to as "name server group 1", (example: veseli.cz, zsprim.cz and sikk.cz ).
About one in six of them use the three mail servers mail.sky.cz, relay.skynet.cz and xrelay.skynet.cz together, hereafter referred to as "mail server group 1", (example: albatrosarch.cz, zafari.cz and brany-vrata.cz ).
Seven percent of them use the two mail servers mail.sky.cz and relay.skynet.cz together (but not xrelay.skynet.cz ), hereafter referred to as "mail server group 2", (example: ftrecords.cz, brnoenglishcentre.cz and drevotrading.cz ).
Five percent of them use the three mail servers mail.sky.cz, xrelay.skynet.cz and relay.bohemia.net together, hereafter referred to as "mail server group 3", (example: asd-znojmo.cz, westnet.cz and tb.cz ).

There are several hundred of domains that use the name server ns2.skynet.cz.

Most of those use name server group 1 (example: resi.cz, tbnet.cz and wlnet.cz ).
About one in six of them use mail server group 1 (example: bohemia.net, vr.bon.cz and preventplus.cz ).
Six percent of them use mail server group 2 (example: zdaneni.cz, zetinabrno.cz and oploceni.cz ).
Six percent of them use mail server group 3 (example: eegbiofeedback.cz and matches.cz ).

There are several hundred of domains that use name server group 1.

About one in six of those use mail server group 1 (example: hotelsconsult.com, ezra.cz and cskopraha.cz ).
Eight percent of them use mail server group 2 (example: jabkodesign.cz ).
Six percent of them use mail server group 3.
Three percent of them use the three mail servers ms.oknet.cz, xrelay.skynet.cz and relay.bohemia.net together (example: hes.cz and tefako.cz ).

There are eight host names that point to the IP number 193.165.254.33.

All of those point only to that ip number (example: sis.skynet.cz and www.pgp.cz ).
Three of them use name server group 1.
Two of them use mail server group 1.
One of them use the three mail servers postak, relay and xrelay.skynet.cz together, hereafter referred to as "mail server group 4".

All of the four host names that point to the IP number 193.165.254.9 point only to that ip number (example: smtp.sky.cz, ns1.bohemia.net and ns.bohemia.net ).

There are eight host names that point only to the IP number 193.165.254.33.

All of the two host names that point to the IP number 217.11.237.6 point only to that ip number (example: ns2.skynet.cz and xrelay.skynet.cz ).

Delegation