How is that any different from requiring a crawler to index XML sitemaps?
> At a minimum, adding some metadata content to XML sitemaps
The purpose of a sitemap is to tell a web robot what resources there are, with some minimal metadata about page titles and last modified date.
Google has some extensions for identifying images and videos.
But that adds more work for site maintainers, who have to duplicate work.
How is that any different from requiring a crawler to index XML sitemaps?
> At a minimum, adding some metadata content to XML sitemaps
The purpose of a sitemap is to tell a web robot what resources there are, with some minimal metadata about page titles and last modified date.
Google has some extensions for identifying images and videos.
But that adds more work for site maintainers, who have to duplicate work.