RFC 4085:Embedding Globally-Routable Internet Addr...
RFC-Ref

Internet service


Click on the red underlined text to get to the source

... number of Internet hosts to rely on a single central Internet service. This can result in a service outage when the aggregate workload overwhelms that service ...
... reliability, scalability, and performance of many Internet services require that the pool of users not access a service using its IP address ...
... IP address reuse, RFC 2050 [1], encourages Internet Service Providers (ISPs) to treat address ...


... hosts should use the Domain Name System to determine the IP addresses associated with the Internet services they require. When using domain names ...



Google
Web
RFC-Ref