I would guess they have to get 'clean' IPs too. Simply moving the IP to a different server likely is not sufficient. Netflix also filters the common ASes, so yo

I would guess they have to get 'clean' IPs too. Simply moving the IP to a different server likely is not sufficient. Netflix also filters the common ASes, so you need to shuffle between exotic/new blocks Even the TTL on a.dns.whatever is set to 1min, a lot of clients ignore the TTL and use the cached value for minutes to days after TTL expiration.