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Which of these should be minimized to deliver the fastest possible time to firstrender?
The number of critical HTML classes
the number of CSS classes
The number of critical JavaScript functions
The number of critical resources
Explanation:
To deliver the fastest possible time to first render, we need to minimize three variables:
- The number of critical resources.
- The critical path length.
- The number of critical bytes.
A critical resource is a resource that could block initial rendering of the page. The fewer of these resources, the less work for the browser, the CPU, and other resources.
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