I use GoDaddy to host all my book websites. It’s not cheap, but it works, and it’s generally worth it when things go wrong.
GoDaddy sent me a notice that they were going to migrate to new servers, with a new DNS number, and that I should not have to do anything to keep things working.
Well, they migrated, and my sites stopped working. I had no idea why, and a crawl through GoDaddy’s controls left me as mystified as they always do. Got hold of text support (eventually), and the usual wizards came on board.
Between two of them, they fixed everything while I sat with folded hands. How? I don’t know. Something to do with alerting my security settings about the new DNS. I think it might have been something like “franniting the wheelstone.”
In any case, whatever else there is about my hosting service, the tech support has been the very best kind, i.e. people who will cheerfully and patiently fix things for you even though you yourself are cosmically ignorant about the tech involved.