The SRV Record is a specification of data in the Domain Name System (DNS) defining the location (i.e. the hostname and port number) of servers for specified services. It is frequently used when configuring SIP or some other third-party service.
The service of SRV record has the following components:
Service: The symbolic name of the desired service.
Protocol: The transport protocol of the desired service; this is usually either TCP or UDP.
Name The domain name for which this record is valid, ending in a dot.
TTL: The standard DNS time to live field.
The SRV Record has the following look in your ClouDNS Control Panel:
Why do you need an SRV record?
Let say you want to run a video or/and audio connection on a specific port of your server. Typically, you will use the SIP protocol to regulate this communication. And here is where the SRV record comes in. It allows you to specify how your domain name handles this particular service.