An SRV record is a DNS record, which is used to point a domain name to a third-party server and use 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 set up, you can specify an Internet Protocol which the domain name will use and the port, which is to be used to connect to the remote server. Additionally, in case you have numerous SRV records for the exact same service, you can set different priorities and weights for each one of them, so you're able to distribute the load between several machines. Such a record will permit you to employ the same domain address or subdomains under it with different companies, so you're able to use it for many purposes even if you can't get all the services from one provider.