Google SEO
Best practices — web.dev
Why use modern image formats?
Serving WebP or AVIF instead of JPEG or PNG can reduce file size by 25–50% without visible quality loss, directly improving LCP.
Further analysis
Use this entry as an audit checkpoint. The cited source establishes the context; the direct answer identifies what to check before choosing an action.
In SFT, this topic relates to Structure. Check whether the signal is visible on the page, connected to the rest of the website and supported by understandable evidence.
Related search terms include WebP, AVIF, image compression. Use them to describe the issue in a brief, audit or answer page.
Applying SFT
Structure turns a rule into readable architecture: headings, URLs, structured data, visible content and clear hierarchy.