Conversion & UX

LCP (Largest Contentful Paint)

Quick definition

A Core Web Vital measuring how long the largest above-the-fold element takes to render. Target: under 2.5 seconds.

What it actually means

LCP measures perceived loading speed — how fast the main image, headline, or hero block becomes visible. Common DTC culprits for slow LCP: unoptimized hero images (use WebP, srcset, preload), render-blocking third-party scripts (review widgets, popup apps), heavy theme JavaScript, slow Shopify metafield queries. Every 100ms improvement in LCP correlates with ~1% lift in conversion rate at the median. LCP under 2.5s is the threshold for "Good" rating.

Related terms

Core Web Vitals

Google's performance metrics: Largest Contentful Paint (LCP), Interaction to Next Paint (INP), Cumulative Layout Shift (CLS).

CRO (Conversion Rate Optimization)

The systematic process of testing and improving the percentage of site visitors who complete a desired action.

Ready to see what your data is telling you?

Book a free strategy call. We'll analyze your current setup, identify the biggest opportunities, and show you exactly where the revenue is hiding.

Schedule a Free Strategy Call