An SRV record is a DNS record, that is used to forward a domain name to a third-party server and employ 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 can specify an Internet Protocol which the domain will use and the port, which will be employed to connect to the remote server. Also, in case you have several SRV records for the exact same service, you could set different priorities and weights for each one of them, so you can send out the load between many machines. Such a record will allow you to employ the same domain address or subdomains under it with different providers, so you could use it for many purposes even if you are not able to get all the services from just one provider.