Glossary · Sitemap
Sitemap
An XML file listing the URLs on a site to help search engines discover and prioritize them for crawling.
Sitemaps live at `/sitemap.xml` (or any URL referenced from robots.txt). For sites with thousands of pages, a sitemap index file points to multiple sub-sitemaps, each containing up to 50,000 URLs.
Sitemaps include lastmod dates that signal when content was updated. Engines use these to prioritize re-crawling.