Performance Budgets for the Web Surfaces

Published: 2026-03-05 · 5 min read

Why budgets matter

Performance regressions are easy to introduce and hard to spot late. Budgets give us objective constraints before issues hit production users.

How we apply budgets

We enforce limits on bundle growth and key rendering milestones in CI, then investigate deltas as part of pull request review.

Culture impact

Teams design with performance in mind from day one instead of treating optimization as a separate phase.