An SRV record is a DNS record, that is used to direct a domain to a third-party server and use it for a service different from a web site. This could be a Voice-Over-IP server, a video streaming service, an instant messaging system, etc. When an SRV record is created, you could specify an Internet Protocol the domain address will use and the port, that will be used to connect to the remote server. In addition, if you have numerous SRV records for the very same service, you'll be able to set individual priorities and weights for every one of them, so you're able to spread the load between several machines. Such a record allows you to use the same domain or subdomains under it with different providers, so you're able to use it for many purposes even if you cannot get all of the services from just one service provider.