I am baffled seeing so much cloudflare fanboys here...
Cloudflare is everywhere, it sees everything, it holds everything, it has private keys for tons and tons of websites, it's subject to the absence of any privacy law in the US, but they are "nice". Wow.
Google also was nice. It used to give you good results. Twitter also was nice.
One more head of Hydra. Espionage System built by the big techs
Considering how I (try) to do bug bounties for money, it's bad for that, but otherwise, it'd probably be worse without it, considering how it seems a lot of developers seem to totally rely on it for reflected XSS protection.
Cuckflare: host loves it, everyone else hates it