I am trying to transfer some of my domains from GoDaddy to Domainsites but the Domainsites status shows "clientDeleteProhibited" for all my domains, and what is this reason?
I believe it means that the owner for that domain has selected it to be private and to have the domain status locked.
How long have those domains been registered with GoDaddy ? If it is less than 60 days, they will not allow you to do so.
"ClientDeleteProhibited" simply means the domain name won't be deleted. Since you're looking to transfer your domain names among registrars, look at the line "ClientTransferProhibited". CTP is the the Extensible Provisioning Protocol (EPP) version of "RegistrarLock". Without going into technical detail, EPP is a new registrar-registry system of commands to address certain issues more specifically. Verisign required registrars supporting .com and .net domain names to be EPP compliant since last October or they won't be able to issue commands for any .com and/or .net domain name they manage. In now using EPP, registrants will now have to both unlock their .com/.net domain names and request for their respective EPP or "authorization/auth" codes from the registrar you're moving away from.