FCP (First Contentful Paint)
First Contentful Paint marks the point when the browser first renders any text, image, or non-white content to the screen. It's the user's first visual confirmation that the page is loading. An FCP under 1.8 seconds is considered 'Good.'
Why It Matters for Shopify Stores
FCP is a user experience signal that affects perceived load time. Even if your store takes 4 seconds to fully load, a fast FCP (under 1 second) makes it feel much faster because shoppers see something immediately. For Shopify stores, FCP is typically slowed by render-blocking CSS in the theme, large critical CSS files, and slow server response times. Improving FCP reduces bounce rates from impatient mobile shoppers.
How to Check Your Store
Google PageSpeed Insights shows FCP under 'Core Web Vitals'. You can also use WebPageTest.org for more detailed waterfall analysis of what's blocking your first paint.
Use the free shopify speed test toolHow to Fix It
Eliminate render-blocking stylesheets by inlining critical CSS. Use font-display: swap for custom fonts. Minimize your theme's above-the-fold CSS. Ensure your hosting/CDN delivers initial server responses quickly.
Related Terms
LCP (Largest Contentful Paint)
Core Web VitalsLargest Contentful Paint measures how long it takes for the largest visible content element on a page — usually a hero image or headline — to finish loading.
TTFB (Time to First Byte)
Core Web VitalsTime to First Byte is the time between a user's browser making an HTTP request and receiving the first byte of data from the server.
Render-Blocking Resources
PerformanceRender-blocking resources are CSS or JavaScript files that prevent a browser from displaying page content until they've fully downloaded and parsed.
Critical CSS
PerformanceCritical CSS refers to the minimum CSS required to render the above-the-fold content of a page — the part visible without scrolling.
Check your store's FCP with our free tools
Get a full audit across all 6 performance categories — including core web-vitals — in under 60 seconds.
Run a Free Store Audit