A COMPLETE GUIDE TO PERFORMANCE BUDGETS

Summary from the TLDR Web Dev newsletter

A performance budget is a threshold you apply to the metrics you care about the most. This article will teach you how to keep up your website's performance from how to select the most relevant metrics for performance, such as TTFB (time to first byte), start render time, and LCP (longest contentful paint), to getting buy-in from stakeholders and continuously monitoring the appropriate metrics.