Server Side Includes (SSI) really is a range of directives that will enable you to incorporate the content of a text file in an HTML file. By doing this, you're able to add some content to numerous webpages in your website and change it by simply editing just one text file. You're able to additionally incorporate the output of different scripts in order that the current time and date, the IP address of the website visitor or the attributes of some file show on your site. This shall help you add some dynamic content to static pages, making the site more desirable to your website visitors and creating a much more professional appearance. It will also be simpler to revise this content compared to updating every static page one at a time. If you wish to use Server Side Includes on your website, the pages that contain the content of any kind of file must be with extension .shtml.