An SRV record is a DNS record, which is used to redirect a domain to a third-party server and use it for a service different from a site. This can be a Voice-Over-IP server, a video streaming service, an instant messaging system, and so forth. When an SRV record is set up, you can specify an Internet Protocol that the domain name will use and the port, which will be used to connect to the remote server. Moreover, in case you have many SRV records for the same service, you can set different priorities and weights for each and every one of them, so you can distribute the load between a number of machines. Such a record will permit you to employ the same domain name or subdomains under it with different companies, so you're able to use it for different purposes even if you are unable to get all the services from one service provider.