[swiley]

Yes you have to point a record at the gh pages if you want to use dns with it, but I don’t think their server checks for that.

[awirth]

Is it possible to subscribe to a firehose of .COM NS record updates through one of those fancy things like dnsdb? If so, perhaps there's an opportunity here for exploiting that race condition en-masse for services that support direct NS-style delegation, like netlify.