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Web Performance Optimization & Lighthouse · Lesson

Setting Performance Budgets

Define and establish performance budgets for key metrics to ensure your website remains fast as it evolves.

What are Performance Budgets?

Just like financial budgets, performance budgets set limits to keep your website fast and efficient.

They are specific, measurable thresholds for various performance metrics. Think of them as guardrails that prevent your site from becoming slow over time.

Why Are Budgets Essential?

Without budgets, performance can slowly degrade with new features or content. This is called "performance regression".

  • Prevent Regressions: Catch performance drops early.
  • Maintain UX: Ensure a consistently fast user experience.
  • Team Alignment: Give developers clear performance goals.
  • Business Impact: Protect conversion rates and SEO rankings.

All lessons in this course

  1. Setting Performance Budgets
  2. Monitoring and Alerting for Budgets
  3. Emerging Performance Technologies
  4. Communicating Performance to Stakeholders
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