An SRV record is a DNS record, that is used to point a domain to a third-party server and employ it for some service different from a web site. This can be a Voice-Over-IP server, a video streaming service, an instant messaging system, etc. When an SRV record is created, you are able to specify an Internet Protocol which the domain name will use and the port, which will be employed to connect to the remote server. Also, in case you have many SRV records for the same service, you can set individual priorities and weights for each and every one of them, allowing you to spread the load between a number of machines. Such a record will enable you to employ the same domain address or subdomains under it with different companies, so you can use it for many purposes even if you are not able to get all the services from one provider.