First Contentful Paint (FCP)
Although FCP is shown in the Live Data report, it is based on Lighthouse's simulated analysis, not real-world data.
The faster your website or webpage's first paint time is, the faster the page displays content on it. In simple terms, this shows when the main content of the page appears on the screen and is a good way to determine the user's loading experience.
Speed Index
The Speed Index metric shows how quickly the page content becomes visible, with lower scores indicating better performance.
First CPU is idle
This reports when most (but probably not all) elements of the page are interactive, and when the page is able to respond to most user input without excessive delay.
TTI measures how quickly a page becomes interactive. Optimizing visibility for interactivity can frustrate users. Therefore, it is important to fully understand and measure when a page that displays useful algeria mobile database content responds within 50 milliseconds.
Potential maximum input lag
Remember FID from the Field Data report? For Lab Data, this is reported as the Maximum Potential First Input Delay and shows the duration of the longest task after FCP that a user may experience.
Chance
List of opportunities to help improve page speed
diagnosis
Diagnostics, on the other hand, show suggestions about best practices that should be considered but won't necessarily improve load times.
Pass the review
What does the approved list look like?