I got comcast and use AppleTV/Netflix a bit..
And I've noticed..if I run the SAME HD show through Comcast.. it buffers in 20x faster than the SAME HD video does from Apple and about 10x faster than netflix.
I just got off the phone with a VERY smug technician who told me it was all on my side. First it was the modem. Reset it.. pings really well on my pc.. next. Then it was CLEARLY my splitter/cable. I told them I use a low impedence splitter and TDR'd my cable line. It's good. I even pointed out that my impendence was about 1/10th of the comcast splitter they had originally given me. This was the point where the tech started sounding uncertain. (Clearly the 'how to BS a customer' binder didn't cover someone who troubleshoots wiring for a living in the past or knew what their network db loss and data rate was. Or how much of their alloted bandwidth they had used)
I'm really really good on the wiring.. learning my network tools. What I'm looking for is ways to definitively PROVE that they are throttling.
Anyone know of any tools that can do that?
They aren't, necessarily, throttling it on your end.
Google for example hosts its content at your ISP directly:
The reason why it so frequently is slow is because these servers often have a very limited amount of space for all the traffic they serve, frequently caching things for mere minutes.
188.8.131.52/24 is specifically Google's Anycast range, from the looks of it.
184.108.40.206/16 is XO Communications, which is a connectivity provider (E.g. one of our current host's peers is XO). It's likely that Google is far from their only customer using this range and I read people talking about this speeding up Netflix as well, which does not surprise me.
While Mitch's site blocks both rules, I'd really only use one at a time and see how things work. My guess is XO is a lot less likely to know wtf it's doing about serving content than Google. They're a high speed, budget connectivity provider. So my recommendation would be to test -only- 220.127.116.11/16