What are the best practices for lazy loading in web design?

What are the best practices for lazy loading in web design?

Lazy loading is a technique that delays the loading of non-essential resources until they are needed. Best practices include using the 'loading' attribute in images, implementing intersection observers, and ensuring a smooth user experience by providing placeholders.

How can lazy loading improve page performance?

Lazy loading can significantly improve page performance by reducing initial load times, decreasing server requests, and optimizing resource usage, leading to a better user experience.

Are there any SEO considerations with lazy loading?

Yes, lazy loading can impact SEO if not implemented correctly. It's important to ensure that search engines can still crawl and index your content, so using proper techniques like the 'noscript' tag for images is essential.

Can you give examples of websites that use lazy loading effectively?

Sure! Websites like Facebook and Instagram use lazy loading to enhance performance by loading images and videos only when they come into the viewport.