Turn on Web Vitals and Biizay measures how your shop loads for real visitors: how long the main content takes to show, how quickly a tap gets a response, and whether the page jumps while loading.
See each figure against Google's thresholds, by page type and by phone, tablet or computer, with advice tied to things you can change.
No cookie is set and nothing about the visitor is kept. Shops that don't turn it on send no measuring code at all.
