On 2nd and 3rd of November, 2023, the fourth edition of performance.now() will take place in Amsterdam—a single track conference with fourteen world-class speakers, covering today’s most important web performance insights. The 2022, 2019, and 2018 editions were a massive success.

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Selected by our program co-chairs Tim Kadlec, Tammy Everts, and Harry Roberts, our speakers will treat topics and case studies including JavaScript, CSS, performance culture, PWAs, image optimization, Web Vitals, performance budgets, frameworks, ecommerce, performance culture, monitoring, mobile browsers, and perceived performance.

“Oh yeah the conference was great too 😂.”

— Ward Peeters, more testimonials