An SRV record is a DNS record, which is used to point a domain name 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, etc. When an SRV record is set up, you are able to specify an Internet Protocol which the domain will use and the port, which is to be employed to connect to the remote server. In addition, provided that you have several SRV records for the exact same service, you could set various priorities and weights for every single one of them, so you can spread the load between a number of machines. Such a record will permit you to employ the same domain or subdomains under it with different providers, so you're able to employ it for different purposes even if you are unable to get all of the services from just one service provider.