Free Tool
XML Sitemap Validator
Validates sitemap.xml structure, checks URL count limits, lastmod format, and flags potential issues with your sitemap.
Note: Some checks require fetching external URLs, which may be blocked by CORS restrictions in the browser. For URLs that can't be fetched directly, try pasting the HTML source instead. Full functionality can be connected via a server-side API proxy.
Why this matters
XML sitemaps help search engines discover and crawl your pages efficiently. An invalid sitemap can prevent proper crawling, while an oversized or outdated sitemap wastes crawl budget. This tool ensures your sitemap follows Google's specifications.
FAQ
A single sitemap can contain up to 50,000 URLs and be no larger than 50MB uncompressed. For larger sites, use a sitemap index file that references multiple sitemaps.
Yes. Google uses lastmod to determine when a page was last modified and prioritizes crawling accordingly. Use accurate, ISO 8601 formatted dates. Inaccurate lastmod values can reduce crawl efficiency.
Only include canonical, indexable pages. Don't include redirected URLs, noindex pages, or duplicate versions. A clean sitemap helps search engines focus on your most important pages.
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