Using .htaccess
Probably the most common way to force traffic to https is by redirecting requests using .htaccess. The .htaccess is a simple text file simply called ‘.htaccess’ which contains additional settings passed to the web server to support some more complicated functionality. If you are using a script created by other people (including CMS like Wordpress), you can probably find a .htaccess file already in the htdocs folder of your website. If you don’t have a .htaccess file yet, you can create a file using the File Manager with the file name .htaccess. Using the File Manager is recommended, some systems (especially Windows) don’t work well with .htaccess files.
After you’ve found or created your .htaccess file, you can edit it in the File Manager or using any text editor (like Notepad). You need to add the following lines to the file:
RewriteEngine On
RewriteCond %{HTTP:X-Forwarded-Proto} !https
RewriteCond %{HTTPS} off
RewriteCond %{HTTP:CF-Visitor} !{"scheme":"https"}
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]