An SRV record, which signifies Service record, is a DNS entry employed to outline the servers that run a certain service for a domain. Put simply, you’ll be able to use your domain name not just for a web site, but also for an instant messaging server, a video streaming host or even a Voice-Over-IP server, for instance, while you still have a site with it. If you set up the SRV record, you can choose what IP it will employ, on which port the connection to the specific server will be established plus the priority and the weight of the record assuming that there are several SRV records for the exact same service. The second option allows you to use different machines for load balancing and redundancy. With this kind of DNS records, you can use the same domain for various purposes and even with different companies in case the same one is not able to provide all services you need.