AFAIK Cloudflare only deal with HTTP and HTTPS, so nothing else goes through their proxy.
Which doesn't matter anyway because the traffic is still going through the edge networks (the ISP and a little bit upstream from there), so is still bandwidth impacting at some point.
We really need a way of getting the ISPs to talk to the providers upstream, and a way of notifying back that a particular host is causing problems. Unfortunately ISPs don't want to do this because unhappy customers = revenue. Also I don't want my traffic analysed on the way through, so there's a freedom issue on this too.
So it's not an easy problem to solve, but the ISPs could do it. But they won't.
On the flip side dealing with this sort of stuff is why i'd like to work for Cloudflare, Google, Facebook or others. It's fascinating how technical solutions can be bypassed by customer or provider inertia.
Which doesn't matter anyway because the traffic is still going through the edge networks (the ISP and a little bit upstream from there), so is still bandwidth impacting at some point.
We really need a way of getting the ISPs to talk to the providers upstream, and a way of notifying back that a particular host is causing problems. Unfortunately ISPs don't want to do this because unhappy customers = revenue. Also I don't want my traffic analysed on the way through, so there's a freedom issue on this too.
So it's not an easy problem to solve, but the ISPs could do it. But they won't.
On the flip side dealing with this sort of stuff is why i'd like to work for Cloudflare, Google, Facebook or others. It's fascinating how technical solutions can be bypassed by customer or provider inertia.