New answers tagged video
Yes, sitemap index files can refer to mRSS files, but you can also submit them individually if you want. You can't link to mRSS files from normal (non-index) sitemap files though. In addition to the help center page you mentioned, there's also a bit about the differences between these files in an older blog post.
We know that Google has technology to detect duplication within video. They use an algorithm at YouTube to detect when any uploaded video uses a copyrighted song. While I haven't heard of any specific cases of Google using video duplication detection other than that, it would not surprise me to learn that they do so. Google would want to detect ...
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