I just moved from Netlify. You might want to as well.
Just a quick post. This site was previously hosted on Netlify because I'm cheap. Looking at this post on reddit it seems like they'll bill you astronomical numbers (over $100k, in this instance) if you're unlucky enough to be DDOSed or lucky enough to go viral.
At the moment I've moved it to Cloudflare Pages, but I'll be looking around a bit more before I decide it's permanent. Unlike Netlify, Cloudflare will disable your site if the usage hits a massive spike, rather than sending you an enormous bill.