First input delay; which measures the time between when a user first interacts with your site (i.e., when they click on something) to the time the browser is able to respond to the interaction.
Printable View
First input delay; which measures the time between when a user first interacts with your site (i.e., when they click on something) to the time the browser is able to respond to the interaction.
Time to interactive (TTI) is a metric that measures how long it takes your app to load and become capable of quickly responding to user interactions, and First Input Delay (FID) is a metric that measures the delay that users experience when they interact with the page while it's not yet interactive.
Thanks for sharing the information
How to check the FID duration?