The service loads the sitemap.xml of a site, automatically finding it via robots.txt or standard paths, and displays the list of pages with last-modified dates and priorities.
A sitemap is an XML file containing a list of a site's pages for search crawlers. It helps Google and other search engines index new and updated pages faster.
lastmod) â when the page was last changed;priority) â page importance from 0.0 to 1.0;