How can I host my main domain from a sub-folder using the .htaccess file?

By default, the main domain will use the public_html directory for its files.
Additional domains (addon, subdomains) will use subdirectories within the root directory.

However, it is possible to host the main domain from a subfolder within public_html by setting up a redirect in the .htaccess file in the public_html folder, so that the server redirects all requests for the main domain to the respective subfolder within public_html.

Website visitors will not know that the domain is loading from a subfolder, as this will not be added to the URL name.

To perform this operation, the following lines will need to be added in the file.htaccess, from public_html:

#Activate Rewrite mode
RewriteEngine on

#Replace "domeniu.ro" with the desired domain
RewriteCond %{HTTP_HOST} ^(www.)?domeniu.ro$

#Replace "subfolder" with the name of the subfolder used.
RewriteCond %{REQUEST_URI} !^/subfolder/

#Do not change these lines
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

#Replace "subfolder" with the name of the subfolder used.
RewriteRule ^(.*)$ /subfolder/$1

#Replace "domeniu.ro" with the desired domain
RewriteCond %{HTTP_HOST} ^(www.)?domeniu.ro$

#Replace "subfolder" with the name of the subfolder used and index.html with the desired default page.
RewriteRule ^(/)?$ subfolder/index.html [L]