请问HN：Bing是如何索引YouTube视频的？
如果你在Edge浏览器上访问Bing视频并搜索任何YouTube内容，你可以无广告播放这些视频。例如： https://www.bing.com/videos/search?q=youtube+free+movies&FORM=HDRSC4
另外，我没有看到指向YouTube域名本身的视频链接。这些视频是通过Bing提供的。
1. 是否有人可以索引YouTube视频并公开分享？
2. 视频质量不如YouTube，但没有广告。这对想要避免广告的消费者来说可能是个好选择。
3. 这不是版权问题吗？
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If you go to Bing videos on Edge browser & search for any YouTube content, you can play them without any ads. Eg: https://www.bing.com/videos/search?q=youtube+free+movies&FORM=HDRSC4<p>Also I don't see links to youtube domain itself for videos. It is being served from Bing.<p>1. Can anyone index youtube videos & openly share?<p>2. Video quality is not as good as YouTube but there are no ads. This may be good for consumers who want to avoid ads.<p>3. Isn't this a copyright issue?