Year round learning for product, design and engineering professionals

Web Directions Lazy Load ’22 session spotlight–A New Measure of Responsiveness

A New Measure of Responsiveness

Page load time is an important aspect of performance, but it’s not the only one. After a site has loaded, it should respond quickly to clicks, taps, and keypresses. But this can be difficult to measure and optimize.

I’ll talk about the Event Timing API and how it can be used to measure interaction timings in RUM analytics and lab tooling. Then I’ll dig deeper into understanding where the time is going, breaking down the problems that end users are seeing and reproducing them in the lab.

Finally I’ll talk about some common problems my team and I have seen as we’ve dug into how responsive web sites are to user interactions, and how to avoid them.

Annie Sullivan

Annie is a software engineer on Chrome’s Web Platform team. She is passionate about building a better performing web for users across the globe. Her tenure as a Googler spans 16 years, with experience on the toolbar, docs, web search, and chrome teams.

Annie currently leads performance metric development on Chrome. She lives in Michigan with her husband Doug and two sons, and enjoys tinkering with laser cutters, metal etching, and new cooking techniques.

A New Measure of Responsiveness Annie Sullivan Senior Staff Software Engineer Google Web Directions lazy load 2022 all about web performance

In 2022 we have a whole series of events for Front End Developers

Across 2022 Web Directions is presenting our series of online conferences for front end designers and developers. Focussed deep dives, they go far beyond what you might expect from conference programs.

Learn more and register now

banners for all of our 2022 events

Priced individually from $195, or attend all 6, plus get access to our conference presentation platform Conffab for just $595, or $59 a month.

delivering year round learning for front end and full stack professionals

Learn more about us

Thanks for an amazing few days Web Directions. So many great themes of empathy, inclusion, collaboration, business impact through design, and keeping our future deeply human.

Laura van Doore Head of Product Design, Fathom