An SRV record, which means Service record, is a DNS entry which is used to identify the servers that run a specific service for a domain. Basically, you can use your Internet domain not just for a website, but also for an instant messaging server, a video streaming host or perhaps a Voice-Over-IP server, as an example, while you still have a site with it. When you set up the SRV record, you can choose what Internet Protocol it will employ, on which port the connection to the particular server will be established along with the priority and the weight of the record in case that there are several SRV records for the very same service. The second option will enable you to use different machines for load balancing and redundancy. Using this type of DNS records, you may use the same domain name many different purposes and even with different companies if the same one is unable to provide all services that you need.