Warming a Multilingual Static Fleet at the Edge: Throughput, Origin Load, and Fail-Closed Abort Rules

Published 2026-09-20 · Version 3 of 4

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Creators: Jermaine Harris

Operational measurement of Cloudflare cache warming for the Animal Start multilingual static fleet. A 2026-08-14 16-cell burst matrix reached about 3.1k aggregate rps with origin load under 4, but sustained policy stays near 800 rps because hotter 800x4 cells fail-closed with NONE/429/BYPASS. A 2026-09-20 probe was not mixed into that matrix. No production --apply in this writing campaign.

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