I rented a cloud server and it is running my 3 different domain name websites, 1 email server, and VPN server. Three websites runs on Nginx and Wordpress.
I know I can combine all three domains on single SSL CA, but I don't want people find those three websites are connected.
I have applied three different SSL CA for three domains using ACME, but it cannot update three separate SSL only one. I don't know how I can update the all SSL CA. I can try Certbot if it can meet my requirement.