IMPORTANT: If you have existing code in your .htaccess, add this above where there are already rules with a similar starting prefix.
To force all web traffic to use HTTPS:
Insert the followng lines of code in the .htaccess file in your website's root folder:
RewriteEngine On
RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ https://www.yourdomain.com/$1 [R,L]
Be sure to replace www.yourdomain.com with your actual domain name.
To force a specific domain to use HTTPS:
Use the following lines of code in the .htaccess file in your website's root folder:
RewriteEngine On
RewriteCond %{HTTP_HOST} ^example\.com [NC]
RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ https://www.yourdomain.com/$1 [R,L]
Make sure to replace example\.com with the domain name you're trying to force to use HTTPS.
Additionally, you need to replace www.yourdomain.com with your actual domain name.
To force a specific folder to use HTTPS:
Insert the code below into an .htaccess file placed in that specific folder:
RewriteEngine On
RewriteCond %{SERVER_PORT} 80
RewriteCond %{REQUEST_URI} folder
RewriteRule ^(.*)$ https://www.yourdomain.com/folder/$1 [R,L]
Make sure you change the folder to the actual folder name. Then replace www.yourdomain.com/folder with your actual domain name and the name of the folder you want to force to use HTTPS.