An SRV record is a DNS record, that is used to direct a domain name to a third-party server and employ it for some service different from an Internet site. This may 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 that the domain name will use and the port, that will be used to connect to the remote server. Also, if you have many SRV records for the exact same service, you can set individual priorities and weights for every single one of them, so you're able to spread the load between several machines. Such a record will allow you to employ the same domain address or subdomains under it with different companies, so you're able to employ it for many purposes even if you are unable to get all services from a single service provider.