Blog Performance Measuring User Experience with Real User Data Julio Chaves Herrera is a product marketer at Akamai. Julio has spent over five years infusing creativity across product messaging, corporate events, and communications. He works directly with Akamai’s product management, engineering, and sales teams, and is focused on developing go-to-market strategies that keep Akamai products relevant in everyone's mind. Outside of work, Julio enjoys playing video games. Gone are the days when web performance was just a measure of how quickly a website loads. Speed will always be important, but metrics focused exclusively on loading times — like response time, time to first byte, and time to last byte — no longer say much about the quality of the user experience (UX).  \r\n In 2021, Google launched the Core Web Vitals (CWV) as part of the page experience update: a group of metrics that provides accurate UX information regarding speed, responsiveness, and visual stability.…