An SRV record is a DNS record, that is used to forward a domain name to a third-party server and employ it for a service different from a web site. This can be a Voice-Over-IP server, a video streaming service, an instant messaging system, etc. When an SRV record is set up, you could specify an Internet Protocol which the domain name will use and the port, which will be employed to connect to the remote server. Additionally, provided that you have many SRV records for the same service, you'll be able to set different priorities and weights for every one of them, allowing you to send out the load between a number of machines. Such a record will enable you to use the same domain address or subdomains under it with different providers, so you're able to employ it for various purposes even if you are unable to get all of the services from just one provider.