An SRV record, which signifies Service record, is a DNS entry that is used to identify the servers which run a specific service for a domain name. Quite simply, you are able to use your domain not only for a web site, but also for an instant messaging server, a video streaming host or perhaps a Voice-Over-IP server, for example, while you still have a site with it. If you create the SRV record, you can pick what IP it will employ, on which port the connection to the specific server will be established as well as the priority and the weight of the record assuming that there are several SRV records for the exact same service. The second option will allow you to use different machines for load balancing and redundancy. With this type of DNS records, you can use the same domain for a variety of purposes and even with different providers in case the same one is not able to provide all services you require.