[cpach]

Not sure what the exact concern is here. So far, virtually all countries on Earth are still represented in DNS. Venezuela, Iran, Somalia, etc etc.

You can also read a lot of anti-Trump articles and comments on countless web-sites, some under .com and some under other top-domains. As lunatic as Trump is, he hasn’t shut that down.

“Is the TLD root management really split up vertically”

AFAIK, yes, it is.

But if the global DNS would somehow break down I guess you either have to find an alternative set of root servers. Or communicate outside of the regular Internet. Such an event surely would shock the global economy.

[iso1631]

Global DNS servers are spread across the world. Most are operated by America but three are operated by Sweden, Japan and Netherlands.

The majority of people use their own ISP or an anycast address from a US company (cloudflare, google, opendns). Quad9 is European.

However any split in the root dns servers signals the end of an interconnected global network. Any ISP can advertise anycast addresses into its own network, so if the US were to be cut off from the world that wouldn't be an issue per-se, but the breakdown of the internet in the western world would be a massive economic shock.

It wouldn't surprise me if it happens in the next decade or two though.

[bflesch]

That's actually a really good point. Totally missed it.