An SRV record is a DNS record, which is used to redirect a domain 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, and so forth. When an SRV record is created, you could specify an Internet Protocol the domain will use and the port, that will be employed to connect to the remote server. Furthermore, if you have many SRV records for the very same service, you are able to set individual priorities and weights for every single one of them, so you're able to send out the load between several machines. Such a record will enable you to employ the same domain or subdomains under it with different providers, so you can use it for many purposes even if you cannot get all services from one service provider.