Advanced Web Performance

Beyond minifying CSS and optimizing images, there are critical metrics that Google uses to rank your site: the Core Web Vitals.

Main Metrics

• LCP (Largest Contentful Paint): How long it takes for the largest visible element to load.
• CLS (Cumulative Layout Shift): How much the page moves while loading (visual stability).
• FID (First Input Delay): How long the page takes to react to the user’s first interaction.

Optimization Techniques

Lazy Loading

Load images only when they enter the viewport. In modern HTML, it’s as easy as:

<img src="photo.jpg" loading="lazy" alt="Description" />