Web Performance Optimizer FAQs

Question 1

Does it support modern image formats?

Accepted Answer

Absolutely. The skill provides guidance on converting images to high-performance formats like WebP and AVIF, as well as implementing responsive image sets using the HTML picture element.

Question 2

Can it help with large JavaScript bundles?

Accepted Answer

Yes, it includes strategies for dependency analysis, tree shaking, and implementing dynamic imports to significantly reduce the amount of code sent to the browser during initial load.

Question 3

How do I verify if the optimizations worked?

Accepted Answer

The skill guides you through a verification phase where you re-run Lighthouse audits and compare before-and-after metrics to ensure measurable improvements in speed and stability.

Question 4

How does this skill improve Core Web Vitals?

Accepted Answer

It identifies specific causes for LCP, FID, and CLS issues and provides code-level fixes like asset preloading, code splitting, and defining explicit image dimensions to prevent layout shifts.

Question 5

Is it compatible with frameworks like Next.js or React?

Accepted Answer

Yes, the skill offers optimization patterns applicable to vanilla JavaScript as well as framework-specific solutions like Next.js Image components and React lazy loading.

Web Performance Optimizer

Key Features

Use Cases

Web Performance Optimizer

Key Features

Use Cases