An SRV record, which stands for Service record, is a DNS entry which is used to identify the servers which run a particular service for a domain. Basically, you’ll be able to use your domain not only for a website, but also for an instant messaging server, a video streaming host or even a Voice-Over-IP server, for instance, while you still have a website with it. Whenever you set up the SRV record, you may choose what IP it will employ, on which port the connection to the particular server is going to be established in addition to the priority and the weight of the record assuming that there are several SRV records for the very same service. The second option will enable you to employ different machines for load balancing and redundancy. Using this type of DNS records, you may use the same domain address for a variety of purposes and even with different providers in case the same one can't provide all services you require.