An SRV record, which stands for Service record, is a DNS entry which is used to define the servers which run a certain service for a domain. Quite simply, you’re able to use your domain name not just for a site, 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 an Internet site with it. Whenever you set up the SRV record, you can select what Internet Protocol it's going to use, on which port the connection to the particular 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 very same service. The latter option will allow you to use different machines for load balancing and redundancy. Using this type of DNS records, you may use the same domain for a variety of purposes and even with different companies in case the same one is unable to provide all services that you need.