What is it all about?
FastCGI is a binary protocol for interfacing interactive programs with a web server. FastCGI is a variation on the earlier Common Gateway Interface (CGI); FastCGI's main aim is to reduce the overhead associated with interfacing the web server and CGI programs, allowing a server to handle more web page requests at once.
* FastCGI is actually CGI with only a few extensions. * FastCGI provides a way to improve the performance of the thousands of Perl applications that have been written for the Web. * FastCGI provides greater security than APIs.