What Does Service Record (SRV Record) Mean?

A service record (SRV record) is a specification of servers in the Domain Name System by hostname and port number. With an SRV record, it is possible to make a server discoverable and designate high priority and high availability servers using a single domain without having to know the exact address of the servers.

Techopedia Explains Service Record (SRV Record)

A service record is a specification of the Domain Name System that allows services to be discoverable on a network. The format is specified in RFC 2782.