I believe the biggest issue is that it would have to be a non-SSL domain, unless Google figure out someone willing to sign a certificate for a that. But I also

I believe the biggest issue is that it would have to be a non-SSL domain, unless Google figure out someone willing to sign a certificate for a that. But I also remember this being frowned upon by ICANN or some other entity in the past. Btw, the dot is not necessary (maybe it is in some OSs/browsers): http://ai/ http://ai/