February 26-28, 2025
Montreal, Canada

Core Web Vitals and their effect on User Experience

The Core Web Vitals - Largest Contentful Paint, Interaction to Next Paint, and Cumulative Layout Shift - were chosen because they are a close proxy for how good or bad a user experience is. There are some things to be aware of... Are they available on all page types, or across browsers, when do they become available, how do we capture them, etc.

In this talk we'll understand what the Core Web Vitals are and how to make use of them.

View all 194 sessions

Philip Tellis

Akamai

Philip Tellis is a geek who likes to make the computer do his work for him. As Principal RUM Distiller at Akamai, he analyses the impact of various design decisions on web application performance, scalability and security. He is the creator of "boomerang" -- a JavaScript based web performance measurement tool.

In his spare time, Philip enjoys cycling, reading, cooking and learning spoken languages.

Read More

Montreal 2025 sponsored by

Become a sponsor