How Lazy Loading Works and Why It Can Speed Up Your Website

Lazy loading is a web performance technique that defers the loading of non-critical resources, such as images and videos, until they are actually needed by the user. Instead of loading all page content at once, it prioritizes visible 'above the fold' content and delays loading of off-screen elements until the user scrolls to them. This approach reduces initial page weight, conserves bandwidth, and significantly improves load times. Faster pages directly benefit search engine rankings, as Google factors Core Web Vitals metrics like Largest Contentful Paint into its scoring. Slow websites, by contrast, risk higher bounce rates, lost conversions, and increased server costs, making lazy loading a practical solution for most sites.