[osigurdson]

I think the verification would start at the origin site - wherever the page located. All traffic originating from the client side bundle or on the server would have to stay in the EU.

Cloudflare is going to provide you with a local IP for whatever you are proxying to. This actually makes it relatively simple, Cloudflare would just need an EU checkbox on their proxy. If you enable that you are subject to EU regulations, otherwise the site would not be available in the EU. It would be very easy for Cloudflare to implement such a filter.

In terms of other services (analytics etc), companies would just eventually have to host EU based services (some already do that).

[dominikz]

Recently I have been doing some OSINT on a web page and tried exactly what you are mentioning: check the origin of the web server behind CloudFlare. I tried anthropic's claude help, but it turned out to be impossible (at least for the two of us: me & claude).

* It would be very easy for Cloudflare to implement such a filter. *

What you are stating, the way I understand it, is that in order to implement your original idea (EU browser), one would need the second thing as well, which is force Claudeflare by EU regulations to expose the IP of the server behind a proxy? Maybe it would be easy to implement for Claudflare, but how would you otherwise convince them to do that?

Looks like a pretty big scope creep to me.

[leonidasrup]

Cloudflare is a US company and as such is subject to CLOUD Act.

https://en.wikipedia.org/wiki/Cloud_Act

For example Microsoft admits it 'cannot guarantee' data sovereignty.

https://www.theregister.com/off-prem/2025/07/25/microsoft-ex...