Free XML Sitemap Validator (Format & Tag Inspector) Online
Validate XML sitemap syntax, check URL tags, inspect lastmod dates, and detect invalid HTTP links before submitting to Search Console. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.
XML Sitemap Validator (Format & Tag Inspector)
Validate XML sitemap syntax, check URL tags, inspect lastmod dates, and detect invalid HTTP links before submitting to Search Console.
How It Works
Paste Sitemap XML
Input XML sitemap code or URL snippet.
Check Structure
Verifies <urlset>, <url>, <loc>, and ISO 8601 <lastmod> dates.
Inspect Findings
Detect unescaped ampersands (&), missing namespaces, and invalid protocols.
Export Clean XML
Copy validated sitemap ready for Search Console submission.
Frequently Asked Questions
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