Server Side Includes (SSI) is a well-known server-side scripting language, which is used to add the content of one file inside another file. It is utilized mainly with online content and it can help make a static HTML website a lot more dynamic. If you need to have a daily quote displayed on a number of web pages of your site, as an example, you can make a text file and replace the quote inside it every day. All web pages where this file is incorporated will show the updated quote, so you'll not have to update them personally each time. SSI may also be used to include the output of simple functions rather than a static file - for example, the viewer's IP address, a hit counter or perhaps the current time and date. In this way, you may make your internet site appear much more professional and a lot more attractive to the visitors. Web pages that employ SSI get a .shtml extension.