Browser & Web Performance · Junior · Question 6 of 75

What is the critical rendering path?

1The CSS selector with the highest specificity
2The slowest API endpoint of the application
✓Correct answer: The sequence of steps from receiving HTML, CSS and JS to drawing the first pixels

Explanation

Optimizing it (fewer render-blocking resources, smaller critical CSS) gets content on screen sooner.

Further reading

MDN: Critical rendering path ↗

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