What it is
For sites where image search matters, an image sitemap helps Google discover and index images it might otherwise miss. Where visuals drive traffic, it is worth having. No image sitemap coverage. Slower image discovery. Add images to a sitemap. Low. Inferred.
Why does images not in image sitemap matter for AI search?
Slower image discovery.
How do you fix it?
Add images to a sitemap.
How do you find it on your site?
- Decide whether image search is a meaningful channel.
- Check whether your sitemap includes image entries.
- Add image information to the sitemap where relevant.
- Submit and monitor in Search Console.
Which ranking and citation factors does it touch?
Image sitemaps aid image discovery and the visibility that comes with it. Optional, but valuable for visual sites.
What is the impact?
Low. Inferred.
What is the evidence?
Image sitemaps aid discovery. Google Search Central, Image SEO best practices; Google Search Central, Build and submit a sitemap
Sources
Frequently asked questions about images not in image sitemap
What does "Images not in image sitemap" mean?
No image sitemap coverage.
How do you fix images not in image sitemap?
Add images to a sitemap.