An SRV record, which signifies Service record, is a DNS entry which is used to define the servers which run a certain service for a domain name. Basically, you’ll be able to use your 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 instance, while you still have a site with it. When you create the SRV record, you can select what Internet Protocol it'll employ, on which port the connection to the particular server will be established as well as the priority and the weight of the record assuming that you have several SRV records for the very same service. The second option will permit you to use different machines for load balancing and redundancy. With this kind of DNS records, you can use the same domain address for various purposes and even with different providers in case the same one is not able to provide all services you require.