What Core Web Vitals measure
They capture how quickly the main content loads, how responsive the page feels and how stable the layout is while loading.
Fix the heavy hitters
Oversized images, render-blocking scripts and unoptimised fonts account for most problems. Compress and size media, defer non-critical scripts and reserve space for content.
Measure real users
Lab tests help during development, but field data from real visitors shows what your audience actually experiences.
Key takeaways
- Optimise images first
- Ship less JavaScript
- Reserve space to avoid layout shifts
- Track field data
