You can find a fairly good overview at http://tools.ietf.org/html/draft-livingood-dns-redirect-03
Comcast does not do this, see http://corporate.comcast.com/comcast-voices/comcast-domain-helper-shuts-down Jason Livingood (Comcast) On 11/5/13, 3:38 PM, "Warren Bailey" <wbai...@satelliteintelligencegroup.com<mailto:wbai...@satelliteintelligencegroup.com>> wrote: All, I've noticed a lot more nxdomain redirects on providers (cox, uverse, tmo, etc.) networks lately. How is this being done?? Is it a magic box or some kind of subscription service? Are any of you doing it? //warren
