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The twenty signals we check before every launch — from LCP element stability to third-party script budgets.
Published November 30, 2025
By Maya Chen
Category Engineering
Reading time 7 min
Performance work is cumulative. A single hero image optimization matters less than a culture of budgets, monitoring, and regression tests.
We run this checklist in CI where possible — Lighthouse CI for PRs, RUM in staging, and manual device testing for animation-heavy flows.
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