DNS does more for Internet services than making names pretty. Raw IP addresses don't get CNAMEs, or multiple A records, or TXT records like SPF/DKIM. If you mov

DNS does more for Internet services than making names pretty. Raw IP addresses don't get CNAMEs, or multiple A records, or TXT records like SPF/DKIM. If you move to a new hosting provider, you can keep the same domain name, but you can't keep the same IP address. Etc.