An SRV record, which stands for Service record, is a DNS entry that is used to define the servers which run a specific service for a domain. In other words, you are able to use your 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 instance, while you still have an Internet site with it. When you create the SRV record, you may choose what Internet Protocol it'll employ, on which port the connection to the specific server is going to be established along with 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 use different machines for load balancing and redundancy. Using this type of DNS records, you can use the same domain name for a number of purposes and even with different providers in case the same one can't provide all services you require.