When you put your domain.com in address bar, there will not redirect to secure SSL link as default. Web Browser also will shows URL is not secure.
To fix this issue, you have to install SSL first. After that, place a htaccess redirection via cPanel easy.
cPanel > Redirect.
After that do the settings as this below image.
Everything done after “Add”. Finally clear browser cache and try. You will be redirected to https://yourdomain.com