First Contentful Paint
Also called: FCP
First Contentful Paint (FCP) measures the time from when a user navigates to a page until the browser renders the first piece of content (text, an image, a non-white canvas, or an SVG). Google rates 1.8 seconds or less as good, measured at the 75th percentile of page loads.
FCP answers a narrow question: has the visitor seen anything yet, or are they still staring at a blank screen? It sits early in the load, so it rolls up everything upstream of the first paint: redirects, connection setup, Time to First Byte, and render-blocking CSS or JavaScript in the <head>.
Where FCP fits
FCP is a companion diagnostic, not one of the three Core Web Vitals (LCP, INP, CLS). It is useful precisely because it isolates the front half of the load. Thresholds at the 75th percentile of real loads:
- Good: 1.8 s or less
- Needs improvement: 1.8 to 3.0 s
- Poor: over 3.0 s
Lighthouse uses stricter numbers in the lab because it runs on faster hardware. On desktop, its “good” FCP band tops out around 0.9 s. A slow FCP almost always traces back to server response time or resources that block the first render. The usual fixes: cut TTFB, inline critical CSS, defer non-critical scripts, and remove redirect chains.
Field tools (Chrome UX Report, PageSpeed Insights, Search Console) show what real visitors experience; lab tools (Lighthouse, DevTools) give you a repeatable number to debug against. Watch both, because a fast lab score can hide a slow real-world FCP on mobile networks, where connection and CPU limits hit hardest.
How it affects your traffic
FCP is the first thing a visitor feels, and bounce rates climb the longer the screen stays blank. It also feeds LCP, so clearing what delays the first paint usually lifts your Core Web Vitals at the same time. Most FCP problems are infrastructure and delivery issues, not content: slow hosting, render-blocking assets, redirect hops, uncompressed resources. That is the core of a Technical SEO engagement, where we measure your field FCP against the 1.8-second bar, find what blocks the first paint, and clear it so pages feel fast to both users and Google's field data.
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