What is SHTML? How are SHTML Files Processed by Web Servers?

An .shtml file is an HTML document that contains directives. Unlike plain .html , the server parses .shtml files before sending them to the browser, executing special embedded commands.

Apache is pre-installed but disabled. Enable it via Terminal:

If you are working with a more technical setup or want to change how users "view" your content, you may need to adjust the site's underlying structure. Custom URLs

For a reliable way to see the raw source code, including the SSI directives, open the .shtml file with any plain text editor or code editor. Applications like Notepad, Visual Studio Code, Sublime Text, or Vim are perfect for this. This will show you the complete, unprocessed content of the file.