An SRV record, which stands for Service record, is a DNS entry employed to define the servers which run a particular service for a domain. Quite simply, you can use your domain not just 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 an Internet site with it. When you set up the SRV record, you can select what Internet Protocol it'll use, on which port the connection to the particular server is going to be established in addition to the priority and the weight of the record provided that you have several SRV records for the exact same service. The second option will permit you to use different machines for load balancing and redundancy. Using this type of DNS records, you can use the same domain address for a variety of purposes and even with different companies in case the same one cannot provide all services that you need.