Media Verdict scans your whole site — post content (all post types, drafts and revisions), post meta (featured images, WooCommerce galleries, Elementor data), term meta, user meta, options (widgets, customizer, logo, site icon) and builder/slider sources (Smart Slider 3, Revolution Slider, LayerSlider, Master Slider, Visual Composer, WPBakery, Cornerstone, Oxygen) — and tells you which media library items are in use and which have no detected usage.

Fail-safe by design:

When in doubt, an item is marked as used.
The UI says “no detected usage”, never “guaranteed unused” — no scanner can see dynamic references (hardcoded CSS, JS-built URLs, email templates).
Deletion always creates a ZIP snapshot first (original + all generated sizes, with md5 manifest).
Deletion always goes to the WordPress trash, never forced.
One-click restore from the snapshot, with integrity verification.

In the Media Library (grid and list modes) used items get a green frame and unused-detected items a red frame with a badge; hovering or clicking shows the evidence (“Used in: Post #123, Product #45”).