Case Study: Cloudflare achieves 8M requests/sec scale, 7x query throughput and reduced MTTR with ClickHouse

Cloudflare - Customer Case Study

Cloudflare was struggling to scale a CitusDB-based HTTP analytics system that had high total cost of ownership and heavy maintenance from a complex architecture. They turned to ClickHouse to handle their HTTP analytics data and simplify their stack.

By moving analytics to ClickHouse, Cloudflare scaled to 8M requests per second, deleted tens of thousands of lines of code, reduced mean time to repair (MTTR), and achieved a 7x improvement in customer queries per second served—demonstrating clear, measurable impact from ClickHouse.

Cloudflare