[xjay]

Maybe one hack would be to have a binary "restricted" flag communicated through the ISP's reverse IP lookup (probably very slow). It wouldn't put any personal information at risk, but it would probably open Pandora's box, except that Pandora's box had hope inside of it.

1) IP address from "Restricted Region" connects to website.

2) Server attempts a reverse IP lookup and waits for reply from ISP's DNS.

3) If DNS reply contains "restricted" (on behalf of the subscriber), server has to restrict access, etc.

[anon-sre-srm]

Changing all of the world's infrastructure isn't a "hack",

All they have to do is use AnyCast and geoip to block most users from a specific region.

If you really need Pornhub in Texas, a VPN cloud VM is your courier.