Browser & Web Performance · Middle · Question 25 of 75

What does an image CDN typically do?

1Stores images in the browser's localStorage
✓Correct answer: Resizes, compresses and converts images on the fly based on URL parameters and the browser's supported formats
3Turns images into inline SVG

Explanation

You keep one original, and each device gets a suitably sized AVIF or WebP from a server close to it.

Further reading

web.dev: Use image CDNs to optimize images ↗

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