Post · bonfire.cafe

@swithinbank@m.webtoo.ls · last week

TIL React has logic to try to sneak in under Core Web Vitals thresholds. Of course it does…

https://react.dev/blog/2025/10/01/react-19-2#batching-suspense-boundaries-for-ssr

#webdev #javascript

React 19.2 – React

The library for web and native user interfaces

Note

React uses heuristics to ensure throttling does not impact core web vitals and search ranking.

For example, if the total page load time is approaching 2.5s (which is the time considered “good” for LCP), React will stop batching and reveal content immediately so that the throttling is not the reason to miss the metric. — Note React uses heuristics to ensure throttling does not impact core web vitals and search ranking. For example, if the total page load time is approaching 2.5s (which is the time considered “good” for LCP), React will stop batching and reveal content immediately so that the throttling is not the reason to miss the metric.

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