Build resilient systems at scale
28–30 October 2015 • Amsterdam, The Netherlands

Performance voice in your head

Steve Souders (SpeedCurve), Mark Zeman (SpeedCurve)
10:20–10:30 Thursday, 29/10/2015
Location: Auditorium
Average rating: ****.
(4.00, 90 ratings)

We all love using things that are fast, but the challenge for Velocity attendees is how to make things fast. Sometimes it’s best just to listen to that little performance voice in your head.

Photo of Steve Souders

Steve Souders


Steve Souders is chief curver at SpeedCurve, where he works on the interplay between performance and design. Steve previously served as Google’s head performance engineer, Yahoo’s chief performance officer, and Fastly’s chief performance officer. Steve pioneered much of the work in the world of web performance. He is the author of High Performance Web Sites and Even Faster Web Sites as well as the creator of many performance tools and services including YSlow, HTTP Archive, Episodes, ControlJS, and Browserscope. Steve taught CS193H: High Performance Web Sites at Stanford and serves as cochair of Velocity, the web performance and operations conference from O’Reilly.

Photo of Mark Zeman

Mark Zeman


Mark Zeman is the founder of SpeedCurve, a frontend performance monitoring service that gives you continuous feedback on how your frontend code is affecting the performance of your website. Mark comes from a design background but has always been just as passionate about the code. He is based by the ocean in beautiful New Zealand and has spent 20 years crafting websites and mobile apps.