An SRV record, which stands for Service record, is a DNS entry which is used to define the servers which run a certain service for a domain name. Put simply, you’ll be able to use your domain not only for a web 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 can choose what Internet Protocol it'll use, on which port the connection to the specific server will be established in addition to the priority and the weight of the record assuming that you have a number of SRV records for the very same service. The latter option will allow you to employ different machines for load balancing and redundancy. Using this type of DNS records, you could use the same domain name for a number of purposes and even with different companies if the same one cannot provide all services you need.