Server Side Includes (SSI) is a well-known server-side scripting language, that is employed to incorporate the content of one file within a second file. It's employed mostly with online content and it can help to make a static HTML website more dynamic. If you wish to have a daily quote shown on many webpages on your website, for instance, you can create a text file and switch the quote within it every single day. All web pages where this file is integrated will show the modified quote, so you will not need to change them manually every single time. SSI may also be used to incorporate the output of simple functions rather than a static file - for example, the client's IP address, a hit counter or even the present time and date. In this way, you can make your internet site appear far more professional and much more attractive to the website visitors. Pages that use SSI get a .shtml extension.