3 ms·
This tool exists exactly to highlight cases like yours. Sounds like your ISP has over-subscribed its connection to whatever IX is serving this to you, and that
by drewg123 10y ago
This tool exists exactly to highlight cases like yours.
Sounds like your ISP has over-subscribed its connection to whatever IX is serving this to you, and that they're hosting speedtest locally in their network.
- tracker1 10y agoMore likely the speedtest sites have a much higher QOS definition, and are unthrottled, while netflix is explicitly throttled.
- drewg123 10y agoIt is probably both. I'm a Comcast customer. When I run speedtest & tcpdump the traffic, i'm nearly always talking to something .comcast.net, and it is just a few hops away via traceroute. When I use fast.com, I'm talking to various ix.nflxvideo.net hosts, all at least 4 to 6 hops farther away. The amusing thing is that I get better speed with the fast,com (140Mb/s) than with speedtest (133Mb/s).