FastCGI is an open interface web servers can use to execute applications in a secure and isolated manner.
FastCGI is an open interface web servers can use to run applications as separate isolated processes. It is an enhancement of the original NCSA CGI interface specification, with a range of improvements. The primary improvement over the standard CGI approach offered by FastCGI is performance, hence the name.
FastCGI is supported by a broad range of Web Servers (such as Apache, nginx, lighttpd).