An SRV record, which signifies Service record, is a DNS entry that is used to define the servers which run a specific service for a domain name. Basically, you are able to use your domain name not only for a 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 a site with it. When you create the SRV record, you can pick 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 there are several SRV records for the exact same service. The latter option will permit you to employ different machines for load balancing and redundancy. Using this kind of DNS records, you may use the same domain name for a variety of purposes and even with different providers in case the same one is unable to provide all services that you need.