An SRV record, which is short for Service record, is a DNS entry that is used to outline the servers which run a certain service for a domain name. Quite simply, you are able to use your domain name not just for a website, 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 create the SRV record, you can pick what Internet Protocol it'll use, on which port the connection to the particular server will be established plus 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 permit you to employ different machines for load balancing and redundancy. Using this type of DNS records, you could use the same domain name for a number of purposes and even with different providers in case the same one cannot provide all services you need.