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