How oversized images and downloads affect page weight, storage and visitor experience.
Why this check matters
Large media files consume bandwidth and storage. They also increase the chance that a visitor waits for content that could have been delivered in a smaller format.
How to review it
- Find the largest recent uploads and identify where they are used.
- Resize images to the display dimensions before compressing them.
- Use modern formats where the workflow supports them.
- Retest the page on a mobile connection after replacing the asset.
Keep the change safe
Keep the original when it is an owned source asset, but serve an optimized derivative to visitors. Check every reference before replacing a file.
How WPVitals uses this signal
WPVitals checks this setting locally and reports the result in the WordPress dashboard. The check is a maintenance signal, so review the site context before changing a setting and test the visitor experience afterwards.