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Google and Netflix, at least, have content distributions boxes inside the ISPs (e.g. https://openconnect.netflix.com/en_gb/appliances/ https://openconnect.netfl

• sp332 7y ago
  That doesn't help that much for YouTube. There's too much variety of content for a cache to reduce bandwidth usage noticeably.
  • JamesBarney 7y ago
    While it's true they have a ton of content. I imagine a lot content viewing follows some type of power law. The top 10,000 watched videos surely make up a significant portion of the total content watch.
    • jerf 7y ago
      If you surf sufficiently exotic videos on YouTube, you know, the ones in the hundreds of views after 8 years, you can pretty much see them getting pulled out of long-term, low-priority storage. I don't get 10 second waits for the streaming to begin on very many other videos.
  • jrockway 7y ago
    That turns out to not be true. You might not be watching the top 10 trending videos, but most people are.
  • chatmasta 7y ago
    The “YouTube algorithm” gives them a lot of control over what “most videos” are. They can nudge people to prefer cached content.
  • ThePowerOfFuet 7y ago
    A good chunk of YouTube is cached in the GFEs.
    • antoinealb 7y ago
      To be more precise, the good chunk of youtube goes to the Google Global Cache, which is a set of physical hardware deployed on an ISP's premises: https://support.google.com/interconnect/answer/9058809?hl=en https://support.google.com/interconnect/answer/9058809?hl=en The GFE is our frontend proxy that terminates TCP & SSL and does not cache content.
  • smileysteve 7y ago
    Virality is a major component of YouTube.