An SRV record is a DNS record, which is used to point a domain name to a third-party server and use it for a service different from a website. This can be a Voice-Over-IP server, a video streaming service, an instant messaging system, and so on. When an SRV record is set up, you are able to specify an Internet Protocol the domain address will use and the port, that will be used to connect to the remote server. Moreover, provided that you have a few SRV records for the exact same service, you'll be able to set individual priorities and weights for each and every one of them, so that you can send out the load between several machines. Such a record will allow you to employ the same domain or subdomains under it with different companies, so you can employ it for different purposes even if you are not able to get all the services from a single service provider.