Poor LCP

LCP measures how quickly the main content becomes visible. Slow LCP feels sluggish to users.

What it is

This check flags pages whose Largest Contentful Paint exceeds the recommended threshold (good is under 2.5 s).

Why it matters for SEO

LCP is a Core Web Vital and a confirmed ranking signal; slow loading also raises bounce rate.

Example

LCP - 4.8 s   (good: < 2.5 s)

How to fix

1. Optimise and preload the largest element (often a hero image).
2. Serve compressed, correctly sized images in modern formats.
3. Reduce render-blocking CSS/JS and improve server response time.
4. Re-test after changes.

Related checks

• Heavy page
• Poor CLS
• Poor INP
• Privacy-friendly analytics & real-user Core Web Vitals

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