How this free tool helps
Use this after generating or publishing a sitemap. It checks the sitemap document itself; it does not claim that every listed URL is indexed by a search engine.
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Free XML Sitemap Validator
Validate an XML sitemap or sitemap index and identify structural problems before submitting it to search engines. Review URL counts, duplicates, invalid URLs and other sitemap issues in a clear report.
Validate both XML structure and URL quality
A structurally valid sitemap can still contain undesirable URLs. Review XML correctness, URL format, duplicates and whether listed destinations are appropriate for indexing.
Common mistakes to avoid
Do not assume a successful parse means every URL should be indexed. Redirects, errors and canonical mismatches need separate URL-level review.
What to do after using this tool
Correct the source sitemap generator where possible, regenerate the file and resubmit the clean sitemap rather than hand-editing recurring output.
Frequently Asked Questions
What does the XML Sitemap Validator check?
It checks sitemap or sitemap-index structure and reports practical issues such as malformed entries, URL counts, duplicates and invalid URL values that can make a sitemap harder to use.
Can a valid XML sitemap still contain bad SEO URLs?
Yes. XML can be syntactically valid while listing redirects, errors, duplicates or URLs you do not want indexed. Structural validation and URL-quality review are separate concerns.
How large can a standard sitemap be?
Search engines support large sitemap files subject to protocol limits, and very large sites can use sitemap index files to split URLs across multiple sitemaps. Follow the current requirements of the search engines you target.
What makes an XML sitemap invalid?
Malformed XML, unsupported structure, invalid URL entries or incorrect nesting can prevent reliable processing. A syntactically valid file can still contain poor URL choices that deserve SEO review.
Can a sitemap index contain other sitemap indexes?
Follow the supported sitemap protocol structure used by the search engines you target. The validator focuses on the submitted file and should not be treated as permission to create unnecessarily complex nesting.
Continue Your SEO Workflow
Continue technical SEO diagnosis using SEO Audit, Indexability Checker, Googlebot Crawl & JavaScript Dependency Test and Robots.txt Tester. Each check covers a different aspect of your website, so compare the evidence before making changes.