What if I don't want to use .shtml?
Some common SSI codes:
| <!--#echo var="HTTP_REFERER" --> | (referring URL) |
| <!--#echo var="REMOTE_ADDR" --> | (visitor's IP address) |
| <!--#echo var="REQUEST_URI" --> | (requested URL) |
| <!--#echo var="HTTP_HOST" --> | (server name) |
| <!--#echo var="HTTP_USER_AGENT" --> | (visitor's browser) |
| <!--#echo var="REDIRECT_STATUS" --> | (redirect status code) |
| <!--#echo var="DATE_LOCAL" --> | (visitor's date and time) |
| <!--#include virtual="path/file.ext" --> | (file include) |


