All fix guides

Page speed (A-lcp)

Largest Contentful Paint (mobile lab)

What this check means

This guide helps you act on one scan finding. It is not legal advice or a compliance verdict.

What to fix

Shorten mobile Largest Contentful Paint by making the largest above-the-fold element cheap to load.

Step-by-step fix

  1. Identify the LCP element (usually the hero image, heading block, or slider). In Chrome DevTools Performance or PageSpeed “LCP element” hints, confirm which node wins.
  2. Serve that image at mobile dimensions, compressed, and preload it with a single <link rel="preload" as="image"> (or the SEO/optimizer plugin’s LCP preload control) — one preload only.
  3. Inline or prioritize critical CSS for the hero; move non-critical theme CSS to async/defer via your optimizer.
  4. Remove autoplaying background video from the mobile hero when it is the LCP candidate.

Choose the path for your setup

  • CDN image resize

    If Cloudflare Polish/Image Resizing or imgix is on, request a width appropriate for ~412px CSS viewport rather than the full desktop file.

Confirm it is fixed

Re-scan and compare mobile LCP (A-lcp) on the same URL. Treat lab LCP as a directional signal, not a field guarantee.

Rescan this check on your site

Scan the same URL again, then compare this check with your previous report.

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