User experience and web performance are among the best indicators of business outcomes. Yet when we think about web performance, it’s easy to fall into an abyss of metrics. TCP connection, TTFB, start render, PageSpeed and YSlow scores... these metrics are all useful and necessary, but they’re just a means to an end: user experience.
In this keynote at Velocity 2017, I walk through a brief history of UX and web performance research, highlighting key studies that connect the dots between performance and user experience and sharing some educated guesses about new metrics that are just around the corner. We still have so much to learn. Some day we’ll laugh at how much we assumed and how little we actually knew. But if we stay on course, we’ll get there.