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