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