Cloudflare is a service that offers a range of services – one of which is to protect client websites and servers from denial of service attacks. We are using it for one of our high profile clients.
Cloudflare does this job very well and can deal with the biggest DDoS attacks around:
One of the most powerful DDoSes ever targets cryptocurrency platform | Ars Technica
Cloudflare stomps on 15.3 million requests per second DDoS • The Register
