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What Is an SRV Record

An SRV Record (Service Record) is a resource record in the Domain Name System (DNS) that indicates the location of a service using a specific destination port number and hostname. Using the SRV Record, we can move services such as VOIP or IM, from host to host easily.

The SRV Record is written in this format:
_service._protocol.owner-name ttl class priority weight port target

Refer to the table below to know what this syntax means.

Service The symbolic service name. Common values are _http for web services and _ftp for file transfer services.
Protocol The transport protocol of the service. Common values are _tcp for the TCP and _udp for the UDP.
Owner Name The domain for which this record is valid.
TTL Optional field. The Time to Live for this record. For ease of use at Crazy Domains, it is filled automatically using our DNS services.
Class Optional field. The Class for this record. For ease of use at Crazy Domains, it is filled automatically using our DNS services.
Priority The priority of the target host. The lower the number in the priority field, the more prioritised the target is.
Weight The weight of the target host. When deciding between two hosts with the same priority, the higher weight is chosen. If there are no hosts with identical priority, the weight parameter should be set to 0.
Port The port that the service uses.
Target The domain name of the target host.

To update an SRV Record for your domain name, click here.

Note: For UK users, SRV Records and all other Premium DNS features are granted for every domain registration without the need to upgrade, as per Registry policies.

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