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durable-objects

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Durable Objects overloaded: The 1,000 req/s Limit

Published Jul 24, 2026

Cloudflare Durable Objects hit a 1,000 req/s soft limit, serialize on one thread, and can double-charge payments if alarm() retries aren't idempotent.

cloudflare durable-objects scaling performance

Cutting Real-Time Server Costs by 90% with the Durable Objects WebSocket Hibernation API

Durable Objects Hibernation API Cuts Costs 90%

Published Jul 24, 2026

Standard WebSockets keep billing Durable Objects GB-s even when idle. Hibernation API migration cut simulated costs by 90.6% in a pricing test.

cloudflare durable-objects websocket cost-optimization