Use sitemap index files to split large sitemaps exceeding 50,000 URLs or 50MB size.
- Use sitemap index files to split large sitemaps exceeding 50,000 URLs or 50MB size1 cited source1 category
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Why this matters
Splitting sitemaps improves crawler processing efficiency and prevents errors or ignores.
Hypothetical standard operating procedure
Adapt this example to your site, access, tools, and change process. It is our suggested procedure, informed by the sources below.
- Check sitemap size and URL count.
- Divide sitemap URLs into multiple files under limits.
- Create sitemap index XML referencing all sitemap files.
- Submit sitemap index in Search Console.
- Maintain sitemap index regularly as content changes.
Watch for
Overly large sitemaps can be ignored or cause crawl processing delays.
Definition of done
Sitemap index properly references multiple smaller sitemap files within size limits.
Sources & attribution
Original checklist wording and example SOP by Best SEO Checklist, using source-grounded AI assistance. Editorial contact: Ted Kubaitis, @tedkubaitis on Teams. Check current source guidance before implementation.