Hello. 
Do not use the softaculus installer @mariofucile because it makes some stupid things during install. in some case you get for example https://yourdomcom/suitecrm/ as your address which means that it is exposing the folder you have installed the system in. On top of that it isn’t always secure enough for production.
It is always best to install through the manual route. You can download it here to your computer: Download - SuiteCRM
That way you can secure your system accordingly and configure the correct URL address that you want to you.
Just follow the documentation on how to install SuiteCRM here:
Downloading & Installing :: SuiteCRM Documentation
check also my older post about hardening SuiteCRM here:
Good luck and have fun! 
Kind regards
PowerQuest