An SRV record is a DNS record, which is used to redirect a domain name to a third-party server and employ it for some service different from a web site. This can be a Voice-Over-IP server, a video streaming service, an instant messaging system, and so on. When an SRV record is created, you could specify an Internet Protocol that the domain will use and the port, which will be employed to connect to the remote server. Furthermore, if you have several SRV records for the exact same service, you can set individual priorities and weights for each one of them, so you can spread the load between many machines. Such a record will permit you to use the same domain name or subdomains under it with different providers, so you're able to employ it for different purposes even if you can't get all services from just one service provider.