An SRV record is a DNS record, which is used to forward a domain name to a third-party server and use it for a service different from a website. This could be a Voice-Over-IP server, a video streaming service, an instant messaging system, and so forth. When an SRV record is created, you could specify an Internet Protocol the domain name will use and the port, which will be employed to connect to the remote server. Moreover, provided that you have several SRV records for the exact same service, you could set individual priorities and weights for every one of them, so you're able to spread the load between a number of machines. Such a record will allow you to employ the same domain name or subdomains under it with different companies, so you could use it for many purposes even if you cannot get all of the services from one provider.