Hunting the Unicorn

On 10th May 2018 at The QEII Centre as part of DeltaV Conference

There's a lot of competition to define the next big unicorn performance metric, but does this unicorn actually exist? In the past, we relied on metrics like page load time, start render, and time to first paint to measure user experience, but we now know that these metrics don't tell the full story.

The key to a good user experience is quickly delivering the content your visitors care about the most. This is easy to say, but tricky to do. Every site has unique content and unique user engagement goals, which is why measuring how quickly critical content renders is a hugely challenging task.

Tammy will walk through a brief history of UX and web performance research, highlighting landmark studies that helped connect the dots between performance and user experience. She'll also demystify the current state of performance metrics and help you understand what you need to focus on for your site and your users.

Session video


Presented by

Tammy Everts

Chief Experience Officer at SpeedCurve


Tammy has spent the past two decades studying how people use the web. Since 2009, she’s focused on the intersection between web performance, user experience, and business metrics. Her book, Time Is Money: The Business Value of Web Performance (O’Reilly, 2016), is a distillation of much of this research.

Tammy is a frequent speaker at events like Velocity, Smashing Conference,, and IRCE. She co-chairs O’Reilly Fluent, the conference for anyone involved in building the modern web. She also co-curates, an ongoing collection of performance case studies.


DeltaV Conference


10th May 2018

Skill level