These days everything that would've been CGI is now FastCGI (even PHP). Or in other words, run one server whose only job is to reverse-proxy requests to another server over a slightly different protocol.
It can be used in shared scenarios, but it's nowhere near as automatic as "every file with a particular extension" like PHP...
It can be used in shared scenarios, but it's nowhere near as automatic as "every file with a particular extension" like PHP...