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SRV Record Lookup

What is an SRV Record in DNS?

An SRV record is one of many types of DNS records available. It specifies a host and a port for specific services such as Voice Over IP, locating Active Directory domain controllers, etc.

The SRV record differs from the typical DNS records since it includes both a host and a port, whereas most other DNS records only contain one host attribute.

What's the Purpose of SRV Records in DNS?

The SRV record's primary purpose is to facilitate service discovery to locate a specific service hosted within a host.

What Does an SRV Record Look Like?

The SRV record differs from the typical DNS records since it contains a service name and attributes such as a port number and protocol.

The typical SRV record contains the following attributes:

  1. Service - The symbolic name of the service
  2. Protocol - The transport protocol of the service; typically, this is usually TCP or UDP
  3. Domain Name - This domain name for which this SRV record is valid for
  4. TTL - Standard DNS Time To Live field
  5. Class - Standard DNS Class field
  6. Type - Standard DNS Type field
  7. Priority - The priority of the target; lower values denote the increased priority
  8. Weight - A relative weight for the records with the same priority
  9. Port - The port of the service
  10. Target - The canonical hostname of the machine providing the service
1 2 _sip._tcp.example.com. 3600 IN SRV 10 60 5060 test.example.com. _sip._udp.example.com. 3600 IN SRV 10 20 5070 test01.example.com.

How To Perform SRV Record Lookup Using This Tool

You can perform an SRV record lookup by executing the following steps:

  1. Access the tool using the official link
  2. Enter the domain name to lookup
  3. The tool will display the SRV record details if the domain name contains an SRV record.

FAQ

What's the difference between an A record and an SRV record?

An A record only points to the specific IP address of the hostname. However, the SRV record specifies the hostname and port of a particular service and provides more information regarding how it handles the service communication.

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