XML Sitemap Validator
Paste the contents of your sitemap.xml and check it against the sitemaps.org spec: well-formed XML, valid absolute URLs, correct date formats, duplicates and the 50,000-URL limit.
Open your sitemap URL, view source, and paste it here. Nothing is uploaded.
Paste a sitemap to validate it.
How it works
Your sitemap is parsed as XML in your browser. We confirm the root element and namespace are correct, then check every <loc> is a valid absolute http(s) URL, every <lastmod> uses W3C date format, changefreq and priority values are within spec, and that you're under the 50,000-URL and 50MB limits. Duplicate URLs and unescaped ampersands - the two most common causes of rejected sitemaps - are flagged too.