Website and Performance
How to improve an e-commerce homepage LCP image
Check size, discovery and priority of the largest above-the-fold visual without breaking the design.
· Digital Department
Identify the actual LCP element
The largest visible element may differ between desktop and mobile. Check whether PageSpeed identifies an image or text. Compressing the wrong asset may not help. Repeated lab runs and field data give a better view than one score.
Avoid late discovery
A critical first-screen image should be discoverable early in HTML and should not be lazy-loaded. Choose appropriate dimensions, format and priority; marking every image high priority defeats the purpose.
- Separate mobile and desktop LCP elements
- Rendered dimensions and transfer size
- Critical CSS and font chain
- Rendering delay after download
Test the visual result
After a performance change, inspect the homepage at several widths. A faster score does not justify broken layout or content appearing late.