Comment by jwr

You mean you outsourced to Cloudflare the decision on who is allowed to view your website. That could be well-intentioned, but it's a risky thing to do, and I would not to outsource that decision. Especially as I wouldn't know who failed to get to my website as there is no way to appeal the decision.

As a side note, what does your site do that it's possible to use up all server resources? Computers are stupid fast these days. I find it's really difficult to build something that doesn't scale to at least multiple hundreds of requests per second.