Tight Mode: Why Browsers Produce Different Performance Results

This article is a sponsored by DebugBear
I was chatting with DebugBear’s Matt Zeunert and, in the process, he casually mentioned this thing called Tight Mode when describing how browsers fetch and prioritize resources. I wanted to nod along like I knew what he was talking about but ultimately had to ask: What the heck is “Tight” mode?
What I got back were two artifacts, one of them being the following video of Akamai web performance expert Robin Marx speaking at We Love Speed i