Perl is a preferred scripting language that is used to make different web-oriented applications, such as CGI scripts. Among the features that distinguish it from other languages is the employment of modules - parts of Perl code which execute predefined tasks and they're widely accepted. In simple terms, as an alternative to creating tailor-made code to perform something or pasting tens and hundreds of lines of program code in the script, you will be able to "call" some module that is already available for this particular job and use just a couple of lines of code. Because of this, your script shall be executed quicker since it will be smaller. Employing modules will, in addition make a script simpler to edit considering that you'll have to search through a smaller amount of program code. If you would like to use Perl on your website, you have to make sure that the necessary modules can be found on the server.