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