SSI, aka Server Side Includes, is a template language created in 2004.

Server Side Includes (SSI) is a simple interpreted server-side scripting language used almost exclusively for the Web. Code is processed by web servers. The most frequent use of SSI is to include the contents of one or more files into a web page on a web server. Read more on Wikipedia...

• SSI Wikipedia page
• SSI first developed in University of Illinois at Urbana–Champaign
• See also: (3 related languages)HTML, Nginx, Edge Side Includes