The Fight For The Main Thread

This article is a sponsored by SpeedCurve
Performance work is one of those things, as they say, that ought to happen in development. You know, have a plan for it and write code that’s mindful about adding extra weight to the page.
But not everything about performance happens directly at the code level, right? I’d say many — if not most — sites and apps rely on some number of third-party scripts where we might not have any influence over the code. Analytics is a good examp