sitemap-validator

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

A practical XML sitemap validator for URL structure, HTTP responses, canonical consistency, duplicate URLs, and common sitemap issues.

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.