Image LCP Tests.

A non-exhaustive list of Largest Contentful Paint (LCP) tests, evaluating the impact of the attributes decoding and loading on image loading performance.

Each page represents a different example, and includes a synchronous script to emphasise results (delay of 1000ms).

Image used for tests (default): 4000px x 2666px, 2.03MB JPG.

Tests makes use of Astro's getImage to generate: 860px x 573px, 246kB WebP.

Image source: Maxim Berg

Examples