Summary
cu ("404") is a domain controlled by six nameservers. Two of them are on the same IP network.
co.il,
ac.il,
ac.zw,
com.eg,
eun.eg and at least 55 other hosts share nameservers with this domain.
cc.cu,
co.cu,
inf.cu,
cfh.cu,
nic.cu and at least 100 other hosts are subdomains to this hostname.