How to Fix Slow Largest Contentful Paint (LCP)
Your main content takes too long to render, hurting rankings and UX.
Symptoms you'll see
LCP measures how long the largest visible element (usually a hero image or heading) takes to render. Above 2.5s is poor; above 4s is failing.
Why it happens
LCP is a Core Web Vital and confirmed ranking factor. Slow LCP correlates with higher bounce, lower conversions, and weaker mobile rankings.
Try it yourself
This article is interactive — model the fix on your own numbers right here.
Open the Core Web Vitals CheckerStep-by-step fix
Serve images in WebP/AVIF with width/height, preload the hero, eliminate render-blocking CSS/JS, use a CDN, and defer non-critical scripts. Measure with field data, not just lab tools.
How SEO Surgeon catches it
Our engine notes pages with poor engagement likely tied to load speed and prioritises performance fixes in your developer task list.
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