An SRV record is a DNS record, which is used to redirect a domain to a third-party server and employ it for some service different from a website. This could 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 will use and the port, which is to be used to connect to the remote server. Additionally, if you have many SRV records for the same service, you are able to set various priorities and weights for every single one of them, in order to send out the load between several machines. Such a record will permit you to use the same domain name or subdomains under it with different companies, so you can employ it for different purposes even if you can't get all of the services from a single service provider.