Small warning: CNAME at apex is commonly used for pointing traffic to a CDN or load balancing kind of service. These services tend to use DNS for part of their

Small warning: CNAME at apex is commonly used for pointing traffic to a CDN or load balancing kind of service. These services tend to use DNS for part of their traffic orchestration (e.g. different DNS response based on user region) which gets less than optimal or even plain wrong results if your DNS server software resolves the CNAME instead of the end-user. If they weren't using DNS as part of their strategy they could've given you a simple IP instead of a CNAME, saving your clients some lookup time.