An SRV record is a DNS record, that is used to forward a domain name to a third-party server and employ it for a 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 could specify an Internet Protocol which the domain address will use and the port, which is to be used to connect to the remote server. Also, if you have numerous SRV records for the same service, you could set various priorities and weights for every single one of them, in order to send out the load between a number of machines. Such a record allows you to employ the same domain address or subdomains under it with different companies, so you could use it for many purposes even if you cannot get all services from one service provider.