How to optimize Core Web Vitals to improve search engine rankings?

When looking to improve search engine rankings, optimizing Core Web Vitals requires targeted measures for the three key metrics: LCP (Largest Contentful Paint), FID (First Input Delay), and CLS (Cumulative Layout Shift). LCP optimization: Typically involves compressing critical resources, such as using WebP format images with aspect ratios set, reducing server response time (TTFB), and considering enabling browser caching and CDN acceleration for static resources. FID optimization: Generally entails reducing main thread blocking, such as lazy loading non-critical JavaScript, removing unused code, adopting code splitting techniques, and prioritizing the loading of essential scripts for the first screen. CLS optimization: Suitable practices include预设固定尺寸 for media elements like images and videos, avoiding sudden page layout changes when dynamically inserting content, and using CSS to ensure reserved space for ads and pop-ups. It is recommended to regularly monitor metric changes through PageSpeed Insights, prioritize resolving items with scores below "Good" (LCP < 2.5s, FID < 100ms, CLS < 0.1), and gradually enhance page user experience to indirectly support search rankings.