Its your provider's routing that is the issue, as in the server provider.
Negative, if the DNS happened to be wrong on our nameservers nobody would be able to see the site, including admins.
I was getting similar stuff back when I was using my own internet provider DNS servers, and they were randomly throwing errors for some sites (including this one). All gone ever since I switched to Google ones... But regardless it is not an issue on our end, and there is nothing us or anyone other than end users can do about it - the only solution is to change the address of whichever DNS servers your device(s) are contacting.
Trust me I periodically call the host and ask where is the server :ie is physically located in the US.
Lol don't, there's no need to keep asking, they won't randomly change your datacenter unless a disaster recovery procedure or an high availability one starts for whatever reason. They will surely swap your host every now and then with vMotion or DRS (VMWare internal functions, but it's similar on Nutanix or whatever system they're using), but this doesn't affect performance or location for us. And I'm pretty sure ours won't be marked as a critical service that needs high availability and such
