Performance
Image Optimization
Plain-language definitionThe practice of serving images with appropriate dimensions, format, quality, and loading priority. It preserves visual intent while reducing transfer and render cost.
Why it matters
Use the term to make a better decision.
In practice, image optimization matters when a team needs to connect a technical or creative choice to a visible change in clarity, performance, discovery, or conversion. The useful question is not whether the term sounds sophisticated. It is what decision it helps the team make.