Core Web Vitals are Google's attempt to quantify what "fast" feels like, and they feed into search ranking. There are three: LCP measures loading, INP measures responsiveness, and CLS measures visual stability. Passing them isn't about a single trick — it's about understanding what each one measures and fixing the specific things that break it.
LCP — Largest Contentful Paint
LCP is the time until the biggest element in the viewport (usually a hero image or headline block) finishes rendering. Aim for under 2.5 seconds. Common causes of a bad LCP:
A large, unoptimized hero image
Render-blocking CSS or JavaScript in the <head>\
