Sitemap files - Webmaster. Help
https://yandex.com/support/webmaster/indexing-options/sitemap.html
Use the Sitemap file to inform Yandex about the current structure of the site: specify a special directive in robots.txt or add it in Yandex.Webmaster.
Create your Google Sitemap Online - XML Sitemaps Generator
https://www.xml-sitemaps.com/
Free Online Google Sitemap Generator. XML-sitemaps.com provides free online sitemap generator service, creating an XML sitemap that can be submitted to Google, Bing and other search engines to...
Sitemap генератор. Создайте XML Sitemaps онлайн
https://www.mysitemapgenerator.com/ru/
Генератор карты сайта Sitemap онлайн. Sitemap-генератор RSS-генератор Товарные фиды Google Товарные фиды Яндекс Подкаст-фиды iTunes.
Site map - Wikipedia
https://en.wikipedia.org/wiki/Site_map
A site map (or sitemap) is a list of pages of a web site within a domain. There are three primary kinds of site map: Site maps used during the planning of a Web site by its designers. Human-visible listings, typically hierarchical, of the pages on a site.
Sitemap validator — Yandex.Webmaster
https://webmaster.yandex.com/tools/sitemap/
Sitemap validator. text URL file. Enter text to check. Check the Sitemap file before adding it to Yandex.Webmaster.