Server Side Includes (SSI) is a simple interpreted server-side scripting language used almost exclusively for the Web.
The most frequent use of SSI is to include the contents of one or more files into a webpage on a web server. For example, a web page containing a daily quotation could include the quotation by placing the following code into the file of the web page:
<!--#include virtual="../quote.txt" -->
Last Revised: 2015-10-08