An SRV record is a DNS record, that is used to point a domain name to a third-party server and employ it for a service different from a website. 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 can specify an Internet Protocol that the domain name will use and the port, which is to be used to connect to the remote server. Additionally, provided that you have a few SRV records for the very same service, you could set individual priorities and weights for every one of them, so you can send out the load between several machines. Such a record will permit you to use the same domain address or subdomains under it with different providers, so you're able to use it for many purposes even if you can't get all services from just one service provider.