How can Server Side Includes (SSI) be utilized to include files in HTML on a domain without PHP support?

To include files in HTML on a domain without PHP support, Server Side Includes (SSI) can be used. SSI allows you to include the content of one file within another file before the server sends the HTML to the client's browser. This can be achieved by adding a simple directive in the HTML file that specifies the file to include. ```html <!--#include virtual="/path/to/file.html" --> ```