the web performance conference27-28 October 2022, Amsterdam

Talks and speakers is a single track conference with fourteen world-class speakers, covering today’s most important web performance insights. They are selected by our program co-chairs Harry Roberts, Tammy Everts and Tim Kadlec.

Below is our tentative 2022 line-up, which is a copy of the 2021 line-up. We hope all these great speakers will come in 2022, but even if they don't we have a quite nice reserve list in our back pocket.

Subscribe here for updates and announcements. We'll send you about four to five mails per year.

Harry Roberts

Consultant Web Performance Engineer, @csswizardry

With a client list including Google, Unilever, and the United Nations, Harry is an award-winning Consultant Front-end Architect who helps organisations and teams across the globe to plan, build, and maintain product-scale UIs.

A Google Developer Expert, he writes on the subjects of CSS architecture, performance, and scalability at, develops and maintains inuitcss, authored CSS Guidelines, and Tweets at @csswizardry.

Session topic: The <head> tag

Sharell Bryant

Engineering Manager, Teachers Pay Teachers, @shrell

Sharell is an engineering manager at Teachers Pay Teachers, an online platform with a mission of empowering educators to teach at their best. Sharell leads teams that are focused on constantly improving developer experience and enabling high-quality and high-velocity product development. She lives in New York City where she also enjoys creative coding and playing music.

Session topic: Continuous Learning

Léonie Watson

Director, TetraLogical, @LeonieWatson

Léonie is Director of TetraLogical; a member of the W3C Advisory Board; co-Chair of the W3C Web Applications Working Group; and until recently was a member of the Accelerated Mobile Pages (AMP) Advisory Committee.

Amongst other things, Léonie is co-organiser of the Inclusive Design 24 (#id24) conference; co-author of the Inclusive Design Principles; and mentor to young people interested in the fields of accessibility and inclusive design. She is also a Microsoft Most Valued Professional (MVP).

Léonie is often found at conferences, talking about web standards, accessibility mechanics, and pushing the boundaries of inclusive design (with existing technologies like SVG, HTML, ARIA, and JavaScript, as well as new technologies like AI and WebVR). She has also written about these things for Smashing magazine,, and Net magazine, as well as on her own site Tink.UK.

In her spare time, Léonie likes reading, cooking, drinking tequila, and dancing (although not necessarily in that order)!

Session topic: Accessibility == Performance

Princiya Sequeira

Engineering Manager, Anaconda, @princi_ya

Princiya has a dozen years of experience building full-stack web & mobile apps, implementing CI/CD solutions, supporting infrastructures, and leading technical teams at scale.

She maintains Lightbeam, a browser extension to visualise first and third-party trackers.

When not coding or cooking, Princiya advocates for open source, privacy & security and offers career advice for underrepresented folks in technology.

Session topic: Web Vitals & SEO

Andy Davies

Independent Web Performance Consultant, @AndyDavies

Andy is an independent web performance consultant who helps companies to make their web sites faster.

Session topic: Third-party scripts

Stoyan Stefanov

Web Performance Consultant, @stoyanstefanov

Stoyan is an entrepreneur and web performance consultant, ex-Facebook, ex-Yahoo, architect of the YSlow 2.0 performance tool and creator of the image optimization tool.

He's the author of React: Up and Running (O'Reilly), JavaScript for PHP developers (O'Reilly), JavaScript Patterns (O'Reilly), Object-Oriented JavaScript (Packt Publishing), The Book of Speed (online), and a contributor to High-Performance JavaScript (O'Reilly) and Even Faster Web Sites (O'Reilly).

He blogs at and and has spoken at conferences and meetups around the world (Velocity, JSConf, OSCON, Web Directions, Fronteers...). He also runs the annual “Planet Performance Calendar” publication.

A Bulgarian-Canadian, Stoyan lives in Los Angeles with his wife and daughters and spends his offline hours biking around the beach and making music (rarely at the same time though).

Session topic: Micro Benchmarks

Dora Militaru

Developer Relations Engineer, Fastly, @doramilitaru

Dora is a Developer Relations Engineer at Fastly. She cut her developer teeth on building a global news website, and cultivated her compassion by leading data protection and site reliability engineering teams. Working at a tiny kitchen table in London, she dreams of helping others build a faster, more secure, more reliable – a better web – for everyone.

Session topic: Performance Culture

Nic Jansma

Software Developer, Akamai, @nicj

Nic is a software developer at Akamai building high-performance websites, apps and open-source tools.

Session topic: Modern Metrics