An SRV record, which is short for Service record, is a DNS entry which is used to identify the servers that run a particular service for a domain name. Basically, you can use your domain not only for a website, but also for an instant messaging server, a video streaming host or perhaps a Voice-Over-IP server, for instance, while you still have a site with it. Whenever you create the SRV record, you may choose what Internet Protocol it'll use, on which port the connection to the specific server is going to be established along with the priority and the weight of the record in case that you have several SRV records for the exact same service. The second option will permit you to employ different machines for load balancing and redundancy. With this kind of DNS records, you may use the same domain name for a number of purposes and even with different companies if the same one is unable to provide all services you need.