A practical XML sitemap validator for URL structure, HTTP responses, canonical consistency, duplicate URLs, and common sitemap issues.
XML sitemap validator CLI: checks a sitemap or sitemap index against the sitemaps.org protocol and search engine limits, flags bad URLs, lastmod dates and cross-host entries, fails CI
Chrome extension to check if active URL exists in XML sitemaps
Validate XML sitemaps from the command line: discovery via robots.txt, sitemap indexes, .xml.gz, protocol limits (50,000 URLs / 50 MB), lastmod, priority, changefreq, foreign hosts, duplicates and optional status checks of listed URLs. Zero-dependency Node.js CLI, library and GitHub Action. Free online version by PromoPilot.
Standards-focused XML sitemap validator for TypeScript, CI, and browser apps.
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