An SRV record is a DNS record, that is used to point a domain to a third-party server and use it for a 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 will use and the port, which will be employed to connect to the remote server. Additionally, if you have a few SRV records for the same service, you'll be able to set individual priorities and weights for every single one of them, so that you can spread the load between many machines. Such a record will allow you to employ the same domain or subdomains under it with different companies, so you can use it for many purposes even if you are not able to get all of the services from a single service provider.