Common Gateway Interface

The Common Gateway Interface (CGI) is a standard technology that allows web servers to run external programs or scripts to generate dynamic content for websites. When you visit a webpage that needs to display personalized information or process data (like filling out a form), the server uses CGI to execute a script—written in languages like Python or Perl—that creates the content on the fly. This process enables websites to interact with users and provide customized responses, making static pages more interactive and functional.