Below is the answer and explanation for the question when referring to the critical rendering path in site performance, a critical resource is:

When referring to the critical rendering path in site performance, a critical resource is:

• Any resource that returns 404
• A resource that could block initial display of the page ✅
• Any resource that must be loaded
• A resource that takes more than 500ms to load

correct answer

A resource that could block initial display of the page ✅

explanation

 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.

Read more here: https://support.google.com/partners/answer/7336426[1234]

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