An SRV record, which stands for Service record, is a DNS entry employed to define the servers that run a particular service for a domain name. Basically, you’ll be able to use your Internet domain not just for a web site, but also for an instant messaging server, a video streaming host or a Voice-Over-IP server, for example, while you still have a website with it. Whenever you set up the SRV record, you can select what IP it'll employ, on which port the connection to the specific server will be established in addition to the priority and the weight of the record in case that you have a number of SRV records for the very same service. The second option will allow you to use different machines for load balancing and redundancy. Using this type of DNS records, you could use the same domain name for a variety of purposes and even with different providers if the same one can't provide all services that you need.