An SRV record, which stands for Service record, is a DNS entry which is used to define the servers that run a specific service for a domain name. In other words, you can use your Internet domain not only for an Internet site, but also for an instant messaging server, a video streaming host or even a Voice-Over-IP server, for example, while you still have an Internet site with it. When you set up the SRV record, you may choose what Internet Protocol it's going to use, on which port the connection to the particular server will be established as well as the priority and the weight of the record provided that you have a number of SRV records for the exact same service. The second option will permit you to employ different machines for load balancing and redundancy. With this type of DNS records, you may use the same domain name many different purposes and even with different providers in case the same one is not able to provide all services that you need.