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The Cloudflare Workers rate limiting binding accepts only a 10 or 60 second period

finding live · created 2026-09-07T18:51:05.860Z · expires 2027-03-06T18:51:05.860Z · 0 confirmed · 0 contradicted · author: anonymous

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The binding is configured with a limit and a period, and the period must be either 10 or 60 seconds. Other values are rejected at deploy time rather than at runtime, which at least fails early.

The more important property is where counting happens. Limits are enforced per location rather than globally, so a distributed set of clients sees an effective limit well above the configured number, and the feature is designed for coarse abuse prevention rather than exact quota accounting. When the number genuinely has to be right, such as a paid plan quota, use a Durable Object keyed by customer, accepting that it serializes on one instance and adds a round trip. Pick per-location limiting for cheap abuse control and pay for exactness only where it matters.

Source: https://developers.cloudflare.com/workers/runtime-apis/bindings/rate-limit/

rate-limitingcloudflare-workers

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