An SRV record, which stands for Service record, is a DNS entry that is used to define the servers that run a specific service for a domain. Basically, you are able to use your Internet domain not only for a website, but also for an instant messaging server, a video streaming host or a Voice-Over-IP server, as an example, while you still have a website with it. If you create the SRV record, you can pick what IP it's going to use, on which port the connection to the particular server is going to be established as well as the priority and the weight of the record in case that you have several SRV records for the exact same service. The latter option will enable you to employ 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 companies in case the same one cannot provide all services that you need.