On Mon, Jan 4, 2016 at 1:21 PM, <Valdis.Kletnieks@vt.edu> wrote:
On Mon, 04 Jan 2016 11:59:40 -0800, Owen DeLong said:
These numbers might be slightly pessimistic because 3XX series responses are not counted as good.
They may be a *lot* more than slightly pessimistic - consider the case of any site that uses 3xx replies to redirect to a geo-IP based server rather than doing it in DNS (which has the problem that you're redirecting based on the IP of the DNS server that asked, which will fail miserably for anybody using 8.8.8.8 as their DNS server)
While I agree with your general sentiment about 3xx responses (often used to redirect example.com to www.example.com) I think your concerns about 8.8.8.8 are over-stated. 8.8.8.8 is deployed in many locations, which gives DNS-based geolocation a decent chance of working. And it also supports the client subnet EDNS0 extension ( https://tools.ietf.org/html/draft-ietf-dnsop-edns-client-subnet-06) for more fine-grained balancing. Damian