How we built rate limiting capable of scaling to millions of domains

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How we built rate limiting capable of scaling to millions of domains

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How we built rate limiting capable of scaling to millions of domains | Cloudflare Blog

Back in April we announced Rate Limiting of requests for every Cloudflare customer. Being able to rate limit at the edge of the network has many advantages: it’s easier for customers to set up and operate, their origin servers are not bothered by excessive traffic or layer 7 attacks.

From the page's own metadata at blog.cloudflare.com, 2026-08-30.

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