Performance

Image Compression and Core Web Vitals: A Practical Primer

Improve page speed by reducing image weight while preserving enough quality for product and editorial pages.

May 8, 20266 min read

Images often account for a large share of page weight. Compressing them improves load time, bandwidth use, and perceived speed.

Start with dimensions

Do not ship a 4000px image into a 600px card. Resize first, then compress.

Choose the right format

WebP and AVIF can be excellent for web delivery. JPEG remains useful for photos, while PNG is better for crisp transparency and screenshots.

Measure real pages

Compression is not just a file-size exercise. Check how the page performs on mobile networks and whether the visual quality still supports the user's decision.

Related Posts