An SRV record, which is short for Service record, is a DNS entry that is used to define the servers that run a particular service for a domain. In other words, you can use your domain name 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 instance, while you still have a site with it. When you set up the SRV record, you can select what Internet Protocol it is going to use, on which port the connection to the particular server will be established in addition to the priority and the weight of the record in case that you have several SRV records for the exact same service. The latter option will allow you to employ different machines for load balancing and redundancy. With this kind of DNS records, you could use the same domain for various purposes and even with different providers if the same one is unable to provide all services you require.