First Contentful Paint
First Contentful Paint (FCP) measures the time span between the start of a page request and the first visible content in the browser. It shows when users first receive visual feedback and is a central component of the PageSpeed evaluation of modern websites. An FCP under 1.8 seconds is considered a good score and directly influences the Rendering experience.
Why is FCP relevant?
FCP serves as an early indicator of perceived speed. When content becomes visible quickly, it builds trust in the page's stability. A good FCP score complements metrics like Largest Contentful Paint and Cumulative Layout Shift within the Core Web Vitals framework.
Technical influencing factors
Blocking scripts, large stylesheets, or unoptimized fonts can delay the initial Rendering . Measures like Critical CSS , clean Lazy Loading , and an optimized asset structure in the Build Process contribute to improving FCP.
Relationship with infrastructure
Server response time, hosting environment, and effective Caching also influence FCP. A stable infrastructure reduces wait times and improves measured performance in tools like PageSpeed .
How we use it
At BTECH Solutions, we optimize FCP through three concrete measures: Critical CSS is automatically inlined during the build, so no stylesheet blocks rendering. Hero images receive a preload attribute in the HTML head. And through Static Site Generation , the fully rendered HTML response is already waiting on the server – the browser does not need to execute JavaScript to display the first content. Result on btech-solutions.eu: FCP under 1.0 second in desktop lab.