I signed up for cloudflare in order to speed up my website & protect it from attacks. But I'm unable to figure out how to add subdomains & sites installed at (directories) www.domain.com/directory to cloudflare network. Everytime I try to visit xyz.domain.com or domain.com/xyz it shows website offline/Unavailable message. 

I don't know if cloudflare has crawled the subdomains or not. 

P.s The website at www.domain.com works just fine. Problem is with subdomains & directories. DNS settings & everything else is good from my side.