Thank you for sending these alternatives, they look good. And, of course, the most important thing is that Cloudflare is free, while these alternatives cost money. And they cost hundreds of dollars at my traffic volume of tens of terabytes. Of course, I really don't want to pay. So, as they say, mice wept and jabbed, but they kept gnawing on the cactus.

Nothing's free - one day they will come knocking. Better be prepared to serve at an affordable level.