Web
Development
Jan 3, 2026
Why Core Web Vitals Matter More Than Ever in 2026
Google's Core Web Vitals have become the gold standard for measuring user experience. In this post, I break down the three key metrics—LCP, FID, and CLS—and share practical strategies I use to achieve perfect scores on every project.
Key Takeaways:
- LCP (Largest Contentful Paint): Aim for under 2.5 seconds. Optimize images, use modern formats like WebP, and implement lazy loading.
- FID (First Input Delay): Keep JavaScript execution minimal. Code-split and defer non-critical scripts.
- CLS (Cumulative Layout Shift): Always define image dimensions and avoid injecting content above existing elements.
John Riordan
5 min read
