Glossary

Tree Shaking

A build optimization that eliminates unused code from JavaScript bundles to reduce file size.

What is Tree Shaking?

Tree shaking is a form of dead code elimination that removes unused exports from JavaScript bundles. Modern bundlers like webpack and Rollup perform tree shaking automatically.

Key Takeaways

1.Tree Shaking is important for website performance and SEO.
2.You can measure it using tools like BulkAudit and Google Lighthouse.
3.Improving this metric can lead to better user experience and search rankings.

Learn More

Google Web Fundamentals

Related Terms

SEO Audit
On-Page SEO
Page Speed

Related Guides

Managing Third-Party Scripts for Performance
Next.js Performance Optimization Guide
Lazy Loading Images and Videos

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