Why the audit is important
The First Interactive metric measures when a page is minimally interactive:
- Most, but maybe not all, UI elements on the screen are interactive.
- The page responds, on average, to most user input in a reasonable amount of time.
See also Consistently Interactive.
How to pass the audit
There are two general strategies for improving load time:
- Minimize the number of required or "critical" resources that must be downloaded or executed before the page can load. See Critical Rendering Path.
- Minimize the size of each critical resource. See Optimizing Content Efficiency.
How the audit is implemented
This section explains how this audit is implemented, so that you can understand how the audit's score is calculated.
The score is a lognormal distribution of some complicated calculations based on the definition of the First Interactive metric. See First Interactive And Consistently Interactive for definitions.