#images

3 posts

Performance

srcset and sizes: How the Browser Picks Images

The correct image for any device depends on viewport width, pixel density, and connection speed. srcset and sizes make that computable at the HTML level.

#performance#images#browser#frontend#LCP

Ashish Apr 13, 2026 10 min read
Performance

What loading=lazy Does: Browser Lazy Loading

Google's profiling found 30-50% of bandwidth goes to below-fold images. loading="lazy" defers them, but two cases where it actively hurts LCP.

#performance#images#browser#LCP#frontend

Ashish Apr 12, 2026 8 min read
Performance

Images, Fonts, Third-Party Scripts: LCP and CLS

How image formats, font loading, and third-party tag managers silently destroy LCP and CLS scores, and the exact fixes for each that actually work.

#performance#images#fonts#LCP#frontend

Ashish Apr 3, 2026 13 min read