An SRV record is a DNS record, which is used to forward a domain name to a third-party server and use it for a service different from a website. This may be a Voice-Over-IP server, a video streaming service, an instant messaging system, and many others. When an SRV record is set up, you could specify an Internet Protocol which the domain will use and the port, that will be used to connect to the remote server. In addition, if you have several SRV records for the same service, you can set individual priorities and weights for every single one of them, so that you can spread the load between a number of machines. Such a record will allow you to use the same domain name or subdomains under it with different companies, so you can use it for different purposes even if you cannot get all services from one provider.