Many host providers (Those acquired by companies like Web.Com, allegedly) disable all ability to use outside certs since Google made encryption a requirement in Chrome Browser...
They do things like blocking containers & SSH to make installing free certs impossible.
They also have elevated the price of their own certs (that they can conveniently provide) to ridiculous prices in contrast to free certs their customers can't even use...
It would be a huge price-fixing scandal if Congress had any idea of how technology works.
> It would be a huge price-fixing scandal if Congress had any idea of how technology works.
It's shady, but technically not price-fixing unless they are a monopoly. You are free to take your business to somewhere else.
There are literally thousands of web hosts out there. If your web host is doing something shitty like that, it's trivial to find a new one.