> I tried it. The url I got looked like guid.domain.net. At first I was thinking that the guid part must be unique for every user, but then the domain.net part

> I tried it. The url I got looked like guid.domain.net. At first I was thinking that the guid part must be unique for every user, but then the domain.net part is still susceptible to being seized. The GUID seems to be unique per-user, but also per ccTLD (mine are GUID.DOMAIN.cz and OTHERGUID.DOMAIN.ph). I would guess that the pool of registered DOMAIN.ccTLD will grow faster than they can be blocked or seized, that new user per-domain GUIDs can be issued on demand onto different registered domains, and that there is an unused reserve of registered domains ready for deployment.