An SRV record is a DNS record, which is used to direct a domain name to a third-party server and use it for some service different from a web site. This could be a Voice-Over-IP server, a video streaming service, an instant messaging system, etc. When an SRV record is created, you can specify an Internet Protocol that the domain name will use and the port, that will be used to connect to the remote server. Furthermore, in case you have numerous SRV records for the exact same service, you can set various priorities and weights for every one of them, so you're able to distribute the load between a number of machines. Such a record will allow you to employ the same domain address or subdomains under it with different companies, so you're able to employ it for many purposes even if you cannot get all of the services from just one service provider.