Perl is a well-liked scripting language that's which is used to make different web-oriented applications, including CGI scripts. Among the attributes which differentiate it from many other programming languages is the usage of modules - parts of Perl code that perform predefined jobs and they are commonly accepted. In simple terms, instead of writing custom-made program code to perform something or pasting tens and hundreds of lines of program code in your script, you can "call" a module that already exists for this specific process and use only a few lines of program code. Therefore, your script shall be executed faster because it will be smaller. Using modules will additionally make a script simpler to change considering that you'll need to search through much less code. In case you wish to use Perl on your site, you should ensure that the necessary modules can be found on the server.