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Is it still? Afaik now with everything HTTPS, caching proxies on the ISP end are completely useless. We instead now see (proprietary?) cache boxes by big playe
by iforgotpassword 3y ago
Is it still? Afaik now with everything HTTPS, caching proxies on the ISP end are completely useless.
We instead now see (proprietary?) cache boxes by big players like YouTube and Netflix that ISPs can install in their DCs, but that seems less elegant, even though it gives the content providers much greater control over what, when and how much gets cached. Still, as a smaller fish, without going with cloudflare, there's no caching involved anymore, probably not even if I decide to run my site on HTTP only.
- cm2187 3y agoHe perhaps meant bandwidth and not requests. Netflix and youtube alone must constitute the bulk of the volume and I believe they are fairly aggressively cached, then you have all the assets stored on CDNs.
- meinheld111 3y agoA CDN is a cache as are the Netflix/fb/etc local boxes. CPUs have three layers of cache before hitting main memory, which could be considered a cache for persistent storage… Yes, still
- Null-Set 3y agoHow do these cache boxes work? Does the server send them its half of the ephemeral key or something? I can't imagine each isp has a box with a copy of netflix's private key.
- ninkendo 3y agoThey terminate TLS at the cache box and use a different connection altogether from the cache box to the upstream server. (Said tunnel to upstream could simply be another TLS connection, or wireguard, or IPsec, etc etc.)