An SRV record is a DNS record, that is used to forward a domain name to a third-party server and employ it for some service different from an Internet site. This may be a Voice-Over-IP server, a video streaming service, an instant messaging system, and so on. When an SRV record is set up, you can specify an Internet Protocol which the domain address will use and the port, that will be employed to connect to the remote server. Also, provided that you have many SRV records for the very same service, you can set individual priorities and weights for each one of them, allowing you to send out the load between a number of machines. Such a record will enable you to employ the same domain name or subdomains under it with different companies, so you can employ it for different purposes even if you can't get all the services from a single provider.