Using Server Side Includes (SSI)

A server-side include is a variable value (for example, a file "Last modified" date) that a server can automatically insert into an HTML file before it sends it to the requestor. In order for your server-side includes to work properly, the Web page must end with either .sht or .shtml and the URL must be relative. For example:

<!--#exec cgi="/cgi-bin/count.cgi"-->

Not

<!--#exec.cgi="http://[domainname}/cgi-bin/count.cgi"-->