Infrastructure Concentration Index: How Much of the Web Depends on Cloudflare, AWS, and Google
We cross-referenced 1.4 million domains across three infrastructure layers — web servers, DNS, and email — to measure how concentrated the internet really is. Cloudflare alone handles 40% of DNS and 32% of web traffic in our dataset. 202,884 domains depend on Cloudflare for both web serving and DNS resolution — a single point of failure for every one of them.