Hi guys sorry, for a very basic question.
*** I have set the SSL so my site now (because i read it somewhere in this forum, SSL important) what is the benefit? does it make the load time slower?
*** I familiar with root domain being installed Wordpress, but I understand we don't need anything except an index.html for a lander.
But rather that put my lander in root domain xxxx.com, i'd rather put in xxxx.com/lander1
The problem is... the root domain become like this

http://prntscr.com/6o7rar (index directory)
What should i do with the root domain? if i leave empty just like that isn't it too vulnerable?
just upload a blank index.html file to the root of your domain, or turn off indexing in cpanel