Performance

You Really Don’t Need All That JavaScript, I Promise

Stuart Langridge • Javascript, Performance • 2d

How to preload responsive images with imagesizes and imagesrcset

Stefan Judis • CSS, HTML, Performance • 5d

Is the web getting slower?

DebugBear • Performance • 2 weeks

Best way to lazy load images for maximum performance

Adrian Bece • Performance • 3 weeks

How to Use AVIF: The New Next-Gen Image Compression Format

Dan Klammer • Performance • 3 weeks

Use advanced typography with local fonts

Thomas Steiner • Performance • 3 weeks

How Fast Should Your Site Load?

David East • Performance • 4 weeks

Highlighting great user experiences on the mobile web

Addy Osmani • Performance • 1 month

Optimizing CSS for faster page loads

Tomas Pustelnik • CSS, Performance • 1 month

content-visibility: the new CSS property that boosts your rendering performance

Una Kravets • CSS, Performance • 2 months