any vendor in theory. The host, upstream provider, DNS provider, domain registrar, CDN, anti-ddos service, lots of options. I don’t know enough about ICANN but

any vendor in theory. The host, upstream provider, DNS provider, domain registrar, CDN, anti-ddos service, lots of options. I don’t know enough about ICANN but I think they only way they could do anything to a single site would be to lean on the registrar.