Font Loading
Font loading is a web performance and user experience concept focused on optimizing how fonts are fetched, rendered, and displayed on websites. It involves techniques to prevent invisible text (FOIT) or layout shifts (CLS) by controlling font delivery and fallback behavior. This ensures text is readable quickly and consistently across devices and network conditions.
Developers should learn font loading to improve Core Web Vitals, especially Cumulative Layout Shift (CLS) and Largest Contentful Paint (LCP), which impact SEO and user engagement. It's critical for responsive design, accessibility, and branding consistency, as slow or poorly handled fonts can degrade readability and visual integrity. Use cases include e-commerce sites, blogs, and applications where typography is a key design element.