An SRV record, which is short for Service record, is a DNS entry that is used to identify the servers which run a certain service for a domain name. Basically, you are able to use your Internet domain not only for an Internet site, but also for an instant messaging server, a video streaming host or a Voice-Over-IP server, for example, while you still have an Internet site with it. If you set up the SRV record, you can select what Internet Protocol it is going to employ, on which port the connection to the particular server will be established along with the priority and the weight of the record assuming that there are several SRV records for the very same service. The second option allows you to employ different machines for load balancing and redundancy. Using this kind of DNS records, you could use the same domain many different purposes and even with different providers if the same one is not able to provide all services you need.