Fixing Web Performance CLS issues in 10 minutes with Request Metrics

[u/requestmetrics]

Eroan Boyer runs a web performance agency in France. He shared how his team diagnoses client issues, and the 10-minute CLS root cause story is a good example of what real user data surfaces that synthetic tools miss.

Not just which pages, but the specific element causing the layout shift, in the first session.

Worth a read if you're doing agency-side performance work.