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Description
Auto-detects sitemap XML on current tab OR paste any sitemap URL to validate all <loc> entries Stop guessing. Know exactly which sitemap URLs are broken. Sitemap XML Validator is a lightweight developer tool that fetches any sitemap XML URL, validates its structure against the Sitemaps protocol, checks the HTTP status of every listed URL, and exports a full report — all from your browser toolbar. Open a sitemap in a tab and the extension detects it automatically. Or paste any sitemap URL and run a manual audit in seconds. WHAT IT CHECKS -- XML structure — root element, namespace, malformed tags -- Field values — lastmod date format, changefreq enum, priority range (0.0-1.0) -- Every <loc> URL — live HTTP status codes (200, 301, 404, 500, timeout) -- Empty or malformed <loc> entries flagged individually by entry number WHAT YOU GET -- Auto-detection when browsing a .xml sitemap page in any tab -- Real-time progress bar with concurrent URL checking (8 at a time) -- Results table: status code + category label per URL -- One-click CSV export for sharing or further analysis -- No account required, no tracking, no external servers WHO IT IS FOR -- SEO professionals auditing site crawlability -- Developers verifying sitemap output before deployment -- QA engineers testing site structure changes -- Site owners checking for broken or redirected pages HOW IT WORKS 1. Open any sitemap XML URL in Chrome — the extension detects it automatically