On Thu, Apr 16, 2015 at 7:41 PM, Phil Mayers <[email protected]> wrote: > On 16/04/15 01:57, Lorenzo Colitti wrote: > >> For the avoidance of mystery: Google performs measurements of IPv6 >> connectivity and latency on an ongoing basis. The Google DNS servers do >> not return AAAA records to DNS resolvers if our measurements indicate >> that for users of those resolvers, HTTP/HTTPS access to dual-stack >> Google services is substantially worse than to equivalent IPv4-only >> services. "Worse" covers both reliability (e.g., failure to load a URL) >> and latency (e.g., IPv6 is 100ms worse than IPv4 because it goes over an >> ocean). The resolvers must also have a minimum query volume, which is >> fairly low. > > > Lorenzo, > > Thanks for the response. > > Do you know if Google have given any thought as to how long they might find > it necessary to take these measures? Years, indefinitely? > > Just curious.
It seems to keep on finding things, so...
