With this talk we will dive into the intersection of web performance optimisation and environmental conservation, focusing on how improving Web Vitals — key indicators of a website's health and user experience — can lead to a more sustainable digital footprint.
We will explore the core Web Vitals: Largest Contentful Paint (LCP), Interaction to Next Paint (INP), and Cumulative Layout Shift (CLS), and how these metrics influence not only the user experience but also the efficiency of web resources. Finally we'll discuss the direct and indirect environmental impacts of web operations, including energy consumption of data centres to transmission networks to the billions of connected devices that we hold in our hands, while taking a look at tools that help us calculate a web application's footprint.
This talk has been presented at JSNation US 2024, check out the latest edition of this JavaScript Conference.
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