What is lazy loading and how can I test it?

What is lazy loading and how can I test it?

Lazy loading is a design pattern that postpones loading non-essential resources until they are needed. You can test it by checking if images or components load only when they enter the viewport.

What tools can I use to test lazy loading?

You can use tools like Google Lighthouse, WebPageTest, or browser developer tools to analyze lazy loading performance.

Are there any best practices for implementing lazy loading?

Yes, ensure that you use the 'loading' attribute for images, implement a fallback for older browsers, and monitor performance impacts.

Can lazy loading affect SEO?

It can, but if implemented correctly, it won't negatively impact SEO. Just ensure that search engines can access the content.

What are the common pitfalls when using lazy loading?

Common pitfalls include not loading critical resources, poor implementation leading to layout shifts, and not considering accessibility.