The processing of an HTML page

If you have a site which consists only of HTML web pages, the server merely sends the HTML data to the web browser as shown in the figure

Screenshot from 2020-10-21 00-07-36

This is why HTML pages can be viewed locally in your web browser from your own computer since they do not need to be “served,” whereas dynamically generated pages such as PHP need to be accessed through a server which handles the processing..