Slow Largest Contentful Paint (LCP)

Your main content takes too long to render, hurting rankings and UX.

High priority · Core Web Vitals

What it is

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 matters

LCP is a Core Web Vital and confirmed ranking factor. Slow LCP correlates with higher bounce, lower conversions, and weaker mobile rankings.

How to fix it

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.

What our AI checks

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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