What is the XML Sitemap Validator?
The XML Sitemap Validator checks your sitemap against the sitemaps.org protocol and best practices. It verifies the XML declaration, namespace, URL entries, location tags, closing elements, and compliance with the 50,000 URL limit — all running entirely in your browser.
A valid XML sitemap is essential for SEO because it helps search engines discover, crawl, and index all your important pages. Sitemap errors can prevent pages from being indexed, directly impacting your organic search visibility.
How to Use This XML Sitemap Validator
Validate your XML sitemap:
- Paste your complete XML sitemap content into the input area.
- Click 'Validate Sitemap' to run all checks.
- Review the pass/fail results for each validation rule.
- Fix any failing checks and re-validate until all checks pass.
Common Use Cases for Developers
Sitemap validation is a critical step in technical SEO:
- Pre-Launch Audit: Validate your sitemap before submitting to Google Search Console to avoid errors.
- Migration Checks: After a site migration, validate the new sitemap to ensure all URLs are correctly listed.
- Automated Sitemaps: Verify dynamically generated sitemaps from your CMS or build tools are well-formed.
- Ongoing Monitoring: Periodically validate sitemaps to catch issues introduced by content updates or configuration changes.
Frequently Asked Questions
What is an XML sitemap?▼
An XML sitemap is a file that lists all important pages on your website, helping search engines discover and crawl them efficiently. It follows the sitemaps.org protocol and includes metadata like last modification dates.
What's the maximum number of URLs in a sitemap?▼
A single XML sitemap can contain a maximum of 50,000 URLs and must be no larger than 50MB uncompressed. For larger sites, use a sitemap index file to reference multiple sitemaps.
What does the validator check?▼
Our validator checks for proper XML declaration, the sitemaps.org namespace, URL entries with <loc> tags, proper closing tags, and compliance with the 50,000 URL limit.
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