XML Sitemap Validator
Validate sitemap XML structure limits URL fields dates changefreq and priority values.
Paste your sitemap XML to validate it against the sitemaps.org protocol — structure, required tags, URL count/size limits, and the format of optional fields. Runs entirely in your browser (paste the XML rather than a URL to avoid cross-origin blocking).
About this tool
XML Sitemap Validator is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: Developer Tools — Advanced. Browse more Developer Tools — Advanced tools.