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Sitemap validator

Enter a domain to find its sitemap, or a sitemap URL to check it. We validate the format and limits, flag bad URLs and dates, and test a sample of the listed pages.

Try: tools.nexayori.com · github.com · developer.mozilla.org/sitemap.xml
https://developer.mozilla.org/sitemap.xml
Sitemap index · 10 sitemaps · 1 KB · found in robots.txt
  • ✓Valid sitemap index with 10 sitemaps.

Spot check 10 URLs from the list

200https://developer.mozilla.org/sitemaps/en-us/sitemap.xml.gz5 ms
200https://developer.mozilla.org/sitemaps/es/sitemap.xml.gz6 ms
200https://developer.mozilla.org/sitemaps/fr/sitemap.xml.gz5 ms
200https://developer.mozilla.org/sitemaps/ja/sitemap.xml.gz5 ms
200https://developer.mozilla.org/sitemaps/ko/sitemap.xml.gz5 ms
200https://developer.mozilla.org/sitemaps/pt-br/sitemap.xml.gz5 ms
200https://developer.mozilla.org/sitemaps/ru/sitemap.xml.gz9 ms
200https://developer.mozilla.org/sitemaps/zh-cn/sitemap.xml.gz9 ms
200https://developer.mozilla.org/sitemaps/zh-tw/sitemap.xml.gz9 ms
200https://developer.mozilla.org/sitemaps/de/sitemap.xml.gz9 ms

Sitemaps in this index

SitemapLast modified
https://developer.mozilla.org/sitemaps/en-us/sitemap.xml.gz2026-11-06
https://developer.mozilla.org/sitemaps/es/sitemap.xml.gz2026-11-06
https://developer.mozilla.org/sitemaps/fr/sitemap.xml.gz2026-11-06
https://developer.mozilla.org/sitemaps/ja/sitemap.xml.gz2026-11-06
https://developer.mozilla.org/sitemaps/ko/sitemap.xml.gz2026-11-06
https://developer.mozilla.org/sitemaps/pt-br/sitemap.xml.gz2026-11-06
https://developer.mozilla.org/sitemaps/ru/sitemap.xml.gz2026-11-06
https://developer.mozilla.org/sitemaps/zh-cn/sitemap.xml.gz2026-11-06
https://developer.mozilla.org/sitemaps/zh-tw/sitemap.xml.gz2026-11-06
https://developer.mozilla.org/sitemaps/de/sitemap.xml.gz2026-11-06