Question 1

How to set up a performance budget in Webpack?

Accepted Answer

Use Webpack's built-in performance configuration or plugins like size-plugin. The README links to official docs and tools like bundlesize for automated size checks during builds to enforce limits.

Question 2

What's the best tool for measuring web performance budget?

Accepted Answer

WebPageTest and Lighthouse are top choices for comprehensive metrics. The list includes these along with alternatives like Sitespeed.io, with resources on how to integrate them into workflows.

Question 3

Performance budget vs performance monitoring – what's the difference?

Accepted Answer

A budget sets specific limits (e.g., max bundle size), while monitoring tracks metrics over time. Tools like Lighthouse can handle both, as noted in the resources for ongoing regression prevention.

Question 4

Real examples of companies using performance budgets?

Accepted Answer

Case studies from Netflix, Pinterest, and Smashing Magazine show tangible improvements. For instance, Netflix reduced JavaScript payloads to cut load times, detailed in linked articles.

Question 5

How to enforce performance budgets in CI/CD?

Accepted Answer

Integrate tools like Lighthouse CI or bundlesize into pipelines. The README references resources on automating budgets with Lighthouse bot and other CI-friendly plugins for pull request checks.

Question 6

Is Webpack or Rollup better for performance budgets?

Accepted Answer

Both support size tracking via plugins; Webpack has native performance options, while Rollup uses rollup-plugin-size-snapshot. Choice depends on your existing build setup and preference.

Web Performance Budget

What is Web Performance Budget?

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