SEO & Website Tools
🗺️ XML Sitemap Validator
Paste XML sitemap content to check structure, URL counts, duplicates and malformed absolute URLs locally in your browser.
Validate pasted sitemap XML
How to use XML Sitemap Validator
- Open the sitemap XML and copy its raw XML content.
- Paste the XML into the validator.
- Run validation to check the root element, location entries, duplicates and absolute URL format.
- Fix reported structural problems at the sitemap source and validate again before submitting it to search engines.
Practical SEO notes
- This tool validates pasted XML structure locally. It does not crawl or fetch the URLs listed inside the sitemap.
- Search-engine sitemap rules include additional limits such as file size and maximum URL counts that should also be checked for very large sitemaps.
Privacy: this tool runs in your browser. OneCalcApp does not need to upload the text you enter here to a third-party SEO service.
Frequently asked questions
What root elements are valid for XML sitemaps?
A normal URL sitemap uses urlset, while a sitemap index uses sitemapindex. Both normally use the sitemaps.org namespace.
Should sitemap URLs be absolute?
Yes. loc values should normally be complete absolute URLs including the scheme and host.
Are duplicate URLs useful in a sitemap?
No. Duplicate loc values add noise without adding discovery value. Keep one canonical entry for each intended indexable URL.