We have two tags for sitemaps:
a list of pages of a web site accessible to crawlers or users.
XML files created to make it easier for Search Engine crawlers and other bots to efficiently and fully crawl a website.
The Sitemaps Protocol specifies multiple formats: XML, RSS feed, Atom feed, plain text. For most questions, the format is irrelevant. For questions where the format is relevant, it can be added as additional tag:
If we want to keep xml-sitemap, we should
- introduce equivalent tags for the other formats (atom-sitemap, text-sitemap, …), if the need arises, and
- clarify that xml-sitemap only applies to the XML format, and not also to the Atom/RSS formats (although they also use XML), and
- remove xml-sitemaps from questions were the format is irrelevant (e.g.: when asking if
noindexed URLs should be listed, there is no need to specify the format as tag).