Can you explain what the abbreviation LCP means and how it is used in web optimization?

LCP (Largest Contentful Paint) is a web performance metric that measures the time it takes for the largest visible element of content (such as a large image or a block of text) to load on the page.

LCP is important for assessing user perception of loading speed: the faster the main content appears, the better the user experience. In web optimization, efforts are made to reduce LCP by optimizing resource loading, using lazy loading, caching, and minimizing blocking scripts.