An SRV record is a DNS record, that is used to redirect a domain name to a third-party server and use it for a service different from a site. This can be a Voice-Over-IP server, a video streaming service, an instant messaging system, and so forth. When an SRV record is created, you can specify an Internet Protocol which the domain name will use and the port, which is to be used to connect to the remote server. Additionally, provided that you have a few SRV records for the same service, you can set various priorities and weights for each and every one of them, so that you can distribute the load between many machines. Such a record will enable you to use the same domain or subdomains under it with different companies, so you're able to employ it for various purposes even if you are unable to get all of the services from just one provider.