An SRV record, which stands for Service record, is a DNS entry which is used to outline the servers which run a certain service for a domain name. In other words, you’ll be able to use your Internet domain not just for a site, but also for an instant messaging server, a video streaming host or perhaps a Voice-Over-IP server, for example, while you still have a website with it. When you create the SRV record, you can select what IP it'll use, on which port the connection to the specific server will 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 allow you to use different machines for load balancing and redundancy. With this kind of DNS records, you may use the same domain name for various purposes and even with different companies in case the same one can't provide all services that you need.