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Sitemap Validator

Validate sitemap XML, duplicate locations, host consistency and lastmod values.

Work with your actual page data

No crawling, tracking, account access or uploads. Paste source/data or import a local UTF-8 file.

Offline structural validation; does not fetch listed URLs or verify indexing. DTD/entity declarations are rejected. Browser input limit is lower than protocol limits. Maximum 1 million input characters in total and 5,000 data rows. Data is not saved between visits.

A smarter way to work with SEO & AEO

29 tools to audit, understand and improve your actual site evidence. URL crawling uses a local service after permission; source and export tools run in your browser.

How to use Sitemap Validator

  1. Prepare the sitemap xml; use Load example to see the format.
  2. Run the analysis or builder. Review evidence, findings and stated limits.
  3. Copy the artifact or download the results; independently review before deploying SEO changes.

What this tool does

Parses a URL set or sitemap index, checks protocol namespace, entry structure, absolute locations and timestamp syntax, and creates a row-level repair report.

Supported files, limits & important details

Offline structural validation; does not fetch listed URLs or verify indexing. DTD/entity declarations are rejected. Browser input limit is lower than protocol limits. Local processing only. Total input: 1 million characters, at most 5,000 rows. No data is uploaded or stored.

Input limits are enforced before processing. Clear removes your input and result from this page. This tool does not store your input between visits.

Keep your workflow moving

Questions about Sitemap Validator

How do I use Sitemap Validator?

Prepare the sitemap xml; use Load example to see the format. Run the analysis or builder. Review evidence, findings and stated limits. Copy the artifact or download the results; independently review before deploying SEO changes.

Are files or text uploaded when I use Sitemap Validator?

No. Sitemap Validator processes your input in your browser. The tool does not upload your document or text for processing. Keep your original and review the result.

What should I check before relying on Sitemap Validator?

Parses a URL set or sitemap index, checks protocol namespace, entry structure, absolute locations and timestamp syntax, and creates a row-level repair report.