performance.now()

the web performance conference 19-20 November 2026, Amsterdam

Here are our 2026 speakers and MCs.

More will be announced later.

Robin Marx: MC

Dr. Robin Marx is a Web Performance Expert at Akamai Technologies. He focuses on the performance and workings of modern Web protocols like HTTP/2, HTTP/3 and QUIC and has been a contributor in the IETF QUIC working group for multiple years.

Robin often talks about web performance at international conferences, making the complex situations more insightful to the wider public. On the weekends, he likes to hit other people with longswords.

Tammy Everts

Embrace

Tammy Everts is chief experience officer at SpeedCurve, where she helps companies understand how visitors use their websites, and a co-chair of performance.now(). 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 from O’Reilly, is a distillation of much of this research. She also cocurates (with Tim Kadlec) WPO Stats, a collection of performance case studies.

Pat Meenan

Google

Patrick Meenan has spent over 25 years working on web performance at companies like Google, Facebook, Cloudflare, and AOL. Best known as the creator of WebPageTest, he is an active contributor to web standards and is currently an engineer on the Chrome team, working to make the web faster.

Harry Roberts

Consultant Web Performance Engineer

Harry Roberts is an independent Consultant Web Performance Engineer from the UK. He helps some of the world’s largest and most respected organisations find and fix their site-speed issues.

He is both a Google- and a Cloudinary Media-Developer Expert, and has consulted for clients from the United Nations to the BBC, General Electric to the Financial Times, and a whole host more. He is also co-chair of performance.now(), the web performance conference for professionals.

When not doing client work, he writes, teaches, and speaks about the entire gamut of front-end performance. When not doing work at all, he’s probably out on his bike.

Tim Kadlec

Cloudflare

Tim Kadlec is a performance consultant and trainer focused on building a web everyone can use. He is the author of High Performance Images (O’Reilly, 2016) and Implementing Responsive Design: Building sites for an anywhere, everywhere web (New Riders, 2012), and was a contributing author for Smashing Book #4: New Perspectives on Web Design (Smashing Magazine, 2013), and the Web Performance Daybook Volume 2 (O’Reilly, 2012). He writes about all things web at timkadlec.com. You can find him sharing his thoughts in a briefer format on Twitter at @tkadlec.

Slides

Stéphanie Walter

Stéphanie is a UX Researcher & Strategist based in Luxembourg with over 15+ years of experience, specialized in enterprise UX, inclusive design and accessibility. She teaches, speaks, and writes about design, UX research, cognitive biases, and the design-dev relationship, among other topics.

When she doesn’t work, she enjoys good tea, bike rides, and drawing illustrations. Her D&D alignment is chaotic neutral, and she is better at keeping her teammates alive in video games than her plants, though she makes an effort. 🌱