Summary
su ("404") is a domain controlled by five nameservers. All of them are on different IP networks.
ru,
pp.ru,
zx.ru,
nic.ru,
org.ru and at least 26 other hosts share nameservers with this domain.
tit.su,
cis.su,
abs.su,
eos.su,
nts.su and at least 100 other hosts are subdomains to this hostname.