An SRV record, which stands for Service record, is a DNS entry employed to identify the servers that run a particular service for a domain. Put simply, you are able to use your Internet domain not only for a 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 set up the SRV record, you can select what IP it's going to use, on which port the connection to the specific server is going to be established in addition to the priority and the weight of the record in case that there are several SRV records for the exact same service. The second option allows you to employ different machines for load balancing and redundancy. With this type of DNS records, you could use the same domain name many different purposes and even with different providers in case the same one cannot provide all services that you need.