I'm trying to move a group of site plan files from my website to a separate site that contains only static assets. However, I can not understand the cross-site submissions mentioned here.
My sitemap has a lot of URLs, so I have about 10 pages. To prove the property, do I need my Robots.txt file to include all pages of the SiteMap.xml site? Or can he just include the index page? The way to check the property with robots.txt is still one thing or does Google simply consider the property as what has been verified in the Google search console? The documentation around this does not seem clear.
Another thing I do not understand is the folder and subdomain rules mentioned on sitemaps.org. Do these rules disappear during an intersite submission because the folder / subdomain is no longer relevant? For example. if my sitemaps are on foo.com/SiteMapFiles/SiteMap.xml and this site map has URLs for bar.com/index.html is it still valid or does the sitemap have to live to foo.com/SiteMap.xml to follow the file conventions?
Google simply gives me a generic "unauthorized URL" error without explaining much more.
What I have now is it. For example. www.example.com, subdomain.staticAssets.com. My sitemap files are now as follows.
I then https://www.example.com/Robots.txt with an entry.
Site Map: https://subdomain.staticassets.com/SiteMaps/SiteMap.xml