An SRV record, which signifies Service record, is a DNS entry that is used to outline the servers that run a specific service for a domain name. In other words, you can use your domain name not only for a web site, but also for an instant messaging server, a video streaming host or a Voice-Over-IP server, for instance, while you still have a site with it. Whenever you create the SRV record, you may choose what IP it will employ, on which port the connection to the specific server is going to be established plus the priority and the weight of the record assuming that you have 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 may use the same domain many different purposes and even with different providers in case the same one cannot provide all services you require.