10 million websites, apps and APIs use Cloudflare to give their users a speed boost. At peak we serve more than 10 million requests a second across our 151 data centers. Over the years we’ve made many modifications to our version of NGINX to handle our growth. This is blog post is about one of them.
In April, we wrote about Web Cache Deception attacks, and how our customers can avoid them using origin configuration. Since our previous blog post, we have looked for but have not seen any large scale attacks like this in the wild.