Below is the answer and explanation for the question the first step to optimize the critical rendering path is:

The first step to optimize the critical rendering path is:

• Analyze and characterize your critical path: number of resources, bytes, length. ✅
• optimize the number of critical bytes to reduce the download time (number of roundtrips)
• minimize number of critical resources: eliminate them, defer their download, mark them as async, and so on
• optimize the order in which the remaining critical resources are loaded: download all critical assets as early as possible to shorten the critical path length.

Correct answer 

Analyze and characterize your critical path: number of resources, bytes, length ✅.

Explanation

 The general sequence of steps to optimize the critical rendering path is

• Analyze and characterize your critical path: number of resources, bytes, length.
• Minimize number of critical resources: eliminate them, defer their download, mark them as async, and so on.
• Optimize the number of critical bytes to reduce the download time (number of roundtrips).
• Optimize the order in which the remaining critical resources are loaded: download all critical assets as early as possible to shorten the critical path length.

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