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Image sitemaps: syntax and when you need one

Image sitemap entries help Google discover images it might not find by crawling, for example images loaded by JavaScript. They're optional for most sites.

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
        xmlns:image="http://www.google.com/schemas/sitemap-image/1.1">
  <url>
    <loc>https://example.com/product/blue-lamp</loc>
    <image:image>
      <image:loc>https://cdn.example.com/img/blue-lamp.jpg</image:loc>
    </image:image>
  </url>
</urlset>

• Up to 1,000 images per <url>.
• Images may be on a CDN on another domain.
• Google deprecated the image:caption, image:title, image:license and image:geo_location tags in 2022. Only image:loc is used.

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