An SRV record is a DNS record, that is used to point a domain name to a third-party server and use it for some service different from a website. This could 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 the domain will use and the port, that will be employed to connect to the remote server. Furthermore, if you have several SRV records for the very same service, you are able to set different priorities and weights for each one of them, so that you can distribute the load between a number of machines. Such a record will enable you to employ the same domain or subdomains under it with different companies, so you could use it for many purposes even if you are unable to get all the services from a single provider.