So...
In recent days the situation has not improved (indeed), so I thought of another drastic change,
move everything on Linode or Vultr.
I asked for advice to those who have already used them here
https://gfy.com/webmaster-q-and-fucki...tr-linode.html, to understand "where to go".
Digitalocean has something strange, cronjob in PHP that do not work, firewall rules and IP tables that are ignored, and many other strange behaviors that I have seen in recent months.
I chose Digitalocean because I had already tried it and I had that feeling
To know him a little and for the guides that make everything seem simple, but in practice I do not think changes much in the procedure to install and configure a LAMP server and also Linode and Vultr offer more resources at the same price.
Even this big loss of visits perhaps is due to a misconfiguration or interpretation of firewalls or iptables, but I can not understand what there is that does not work, maybe it's just something Digitalocean, with a new server, or visits come back to grow, or anyway I know I have to look somewhere else.
So I was thinking about a complete shift.
Are there any problems with Linode or vultr that I should know before I start creating a new server?
Ubuntu 17? Can you use it for servers?