What is an Image Sitemap?
An image sitemap is a file containing links to the images on your site. This file provides search engines with the details of the pictures, screenshots, infographics, and other visual content on your site.
A typical image sitemap will include the URLs of the images on your site. It may also include the title, caption, and other relevant metadata about the images. Search engines use these metadata to discover, understand, and index your images for search results.
While Google can find your images without an image sitemap, it is a good idea to include one on your site. As per Google’s guidelines, your image sitemap could be standalone, or you may include it in your regular sitemap.