The Slow Starter
Starting to render the page quickly, measured by a First Contentful Paint (FCP) metric, is critical for how users perceive your site's speed. Delays in FCP, often caused by slow servers (measured using Time To First Byte) or render-blocking resources, significantly increase the chance of users abandoning the page (bounce rate). Learn more in the "Fast Start" Speed Pattern. Compare the 500ms "Fast" baseline against the delayed version below.
We are preparing your experience...
0ms
Slow to Start
Starts rendering at 2500ms.
Fast
Only 5% of websites start rendering faster than 500ms.
0ms